#!@PERL@ -w
# automake - create Makefile.in from Makefile.am -*- perl -*-
# @configure_input@
# Copyright (C) 1994-2018 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see .
# Originally written by David Mackenzie .
# Perl reimplementation by Tom Tromey , and
# Alexandre Duret-Lutz .
package Automake;
use strict;
BEGIN
{
unshift (@INC, '@datadir@/@PACKAGE@-@APIVERSION@')
unless $ENV{AUTOMAKE_UNINSTALLED};
# Override SHELL. This is required on DJGPP so that system() uses
# bash, not COMMAND.COM which doesn't quote arguments properly.
# Other systems aren't expected to use $SHELL when Automake
# runs, but it should be safe to drop the "if DJGPP" guard if
# it turns up other systems need the same thing. After all,
# if SHELL is used, ./configure's SHELL is always better than
# the user's SHELL (which may be something like tcsh).
$ENV{'SHELL'} = '@SHELL@' if exists $ENV{'DJDIR'};
}
use Automake::Config;
BEGIN
{
if ($perl_threads)
{
require threads;
import threads;
require Thread::Queue;
import Thread::Queue;
}
}
use Automake::Global;
use Automake::General;
use Automake::XFile;
use Automake::Channels;
use Automake::ChannelDefs;
use Automake::Configure_ac;
use Automake::FileUtils;
use Automake::Location;
use Automake::Condition qw/TRUE FALSE/;
use Automake::DisjConditions;
use Automake::Options;
use Automake::Variable;
use Automake::VarDef;
use Automake::Rule;
use Automake::RuleDef;
use Automake::Wrap 'makefile_wrap';
use Automake::Language;
use File::Basename;
use File::Spec;
use Carp;
## ----------------------- ##
## Subroutine prototypes. ##
## ----------------------- ##
sub append_exeext (&$);
sub check_gnits_standards ();
sub check_gnu_standards ();
sub check_trailing_slash ($\$);
sub check_typos ();
sub define_files_variable ($\@$$);
sub define_standard_variables ();
sub define_verbose_libtool ();
sub define_verbose_texinfo ();
sub do_check_merge_target ();
sub get_number_of_threads ();
sub handle_compile ();
sub handle_data ();
sub handle_dist ();
sub handle_emacs_lisp ();
sub handle_factored_dependencies ();
sub handle_footer ();
sub handle_gettext ();
sub handle_headers ();
sub handle_install ();
sub handle_java ();
sub handle_languages ();
sub handle_libraries ();
sub handle_libtool ();
sub handle_ltlibraries ();
sub handle_makefiles_serial ();
sub handle_man_pages ();
sub handle_minor_options ();
sub handle_options ();
sub handle_programs ();
sub handle_python ();
sub handle_scripts ();
sub handle_silent ();
sub handle_subdirs ();
sub handle_tags ();
sub handle_targets ();
sub handle_tests ();
sub handle_tests_dejagnu ();
sub handle_texinfo ();
sub handle_user_recursion ();
sub initialize_per_input ();
sub lang_lex_finish ();
sub lang_sub_obj ();
sub lang_vala_finish ();
sub lang_yacc_finish ();
sub locate_aux_dir ();
sub parse_arguments ();
sub scan_aclocal_m4 ();
sub scan_autoconf_files ();
sub silent_flag ();
sub transform ($\%);
sub transform_token ($\%$);
sub usage ();
sub version ();
sub yacc_lex_finish_helper ();
# This variable was kept here because it uses the \$RELEASE_YEAR variable
# which is passed directly to this script by the Makefile. We need to find a
# better solution.
# Copyright on generated Makefile.ins.
my $gen_copyright = "\
# Copyright (C) 1994-$RELEASE_YEAR Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
";
################################################################
# var_SUFFIXES_trigger ($TYPE, $VALUE)
# ------------------------------------
# This is called by Automake::Variable::define() when SUFFIXES
# is defined ($TYPE eq '') or appended ($TYPE eq '+').
# The work here needs to be performed as a side-effect of the
# macro_define() call because SUFFIXES definitions impact
# on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
# the input am file.
sub var_SUFFIXES_trigger
{
my ($type, $value) = @_;
accept_extensions (split (' ', $value));
}
Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
################################################################
# initialize_per_input ()
# -----------------------
# (Re)-Initialize per-Makefile.am variables.
sub initialize_per_input ()
{
reset_local_duplicates ();
$relative_dir = undef;
$output_deps_greatest_timestamp = 0;
$output_vars = '';
$output_all = '';
$output_header = '';
$output_rules = '';
$output_trailer = '';
Automake::Options::reset;
Automake::Variable::reset;
Automake::Rule::reset;
@cond_stack = ();
@include_stack = ();
@all = ();
@check = ();
@check_tests = ();
%clean_files = ();
%compile_clean_files = ();
# We always include '.'. This isn't strictly correct.
%libtool_clean_directories = ('.' => 1);
@sources = ();
@dist_sources = ();
%object_map = ();
%object_compilation_map = ();
%directory_map = ();
%dep_files = ();
@dist_targets = ();
@dist_common = ();
$handle_dist_run = 0;
@proglist = ();
@liblist = ();
@ltliblist = ();
@dup_shortnames = ();
%known_programs = ();
%known_libraries = ();
%extension_seen = ();
%language_scratch = ();
%lang_specific_files = ();
$need_link = 0;
$must_handle_compiled_objects = 0;
%transformed_files = ();
}
################################################################
# Initialize our list of languages that are internally supported.
my @cpplike_flags =
qw{
$(DEFS)
$(DEFAULT_INCLUDES)
$(INCLUDES)
$(AM_CPPFLAGS)
$(CPPFLAGS)
};
# C.
register_language ('name' => 'c',
'Name' => 'C',
'config_vars' => ['CC'],
'autodep' => '',
'flags' => ['CFLAGS', 'CPPFLAGS'],
'ccer' => 'CC',
'compiler' => 'COMPILE',
'compile' => "\$(CC) @cpplike_flags \$(AM_CFLAGS) \$(CFLAGS)",
'lder' => 'CCLD',
'ld' => '$(CC)',
'linker' => 'LINK',
'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'CC',
'extensions' => ['.c']);
# C++.
register_language ('name' => 'cxx',
'Name' => 'C++',
'config_vars' => ['CXX'],
'linker' => 'CXXLINK',
'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'autodep' => 'CXX',
'flags' => ['CXXFLAGS', 'CPPFLAGS'],
'compile' => "\$(CXX) @cpplike_flags \$(AM_CXXFLAGS) \$(CXXFLAGS)",
'ccer' => 'CXX',
'compiler' => 'CXXCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'CXX',
'lder' => 'CXXLD',
'ld' => '$(CXX)',
'pure' => 1,
'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
# Objective C.
register_language ('name' => 'objc',
'Name' => 'Objective C',
'config_vars' => ['OBJC'],
'linker' => 'OBJCLINK',
'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'autodep' => 'OBJC',
'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
'compile' => "\$(OBJC) @cpplike_flags \$(AM_OBJCFLAGS) \$(OBJCFLAGS)",
'ccer' => 'OBJC',
'compiler' => 'OBJCCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'lder' => 'OBJCLD',
'ld' => '$(OBJC)',
'pure' => 1,
'extensions' => ['.m']);
# Objective C++.
register_language ('name' => 'objcxx',
'Name' => 'Objective C++',
'config_vars' => ['OBJCXX'],
'linker' => 'OBJCXXLINK',
'link' => '$(OBJCXXLD) $(AM_OBJCXXFLAGS) $(OBJCXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'autodep' => 'OBJCXX',
'flags' => ['OBJCXXFLAGS', 'CPPFLAGS'],
'compile' => "\$(OBJCXX) @cpplike_flags \$(AM_OBJCXXFLAGS) \$(OBJCXXFLAGS)",
'ccer' => 'OBJCXX',
'compiler' => 'OBJCXXCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'lder' => 'OBJCXXLD',
'ld' => '$(OBJCXX)',
'pure' => 1,
'extensions' => ['.mm']);
# Unified Parallel C.
register_language ('name' => 'upc',
'Name' => 'Unified Parallel C',
'config_vars' => ['UPC'],
'linker' => 'UPCLINK',
'link' => '$(UPCLD) $(AM_UPCFLAGS) $(UPCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'autodep' => 'UPC',
'flags' => ['UPCFLAGS', 'CPPFLAGS'],
'compile' => "\$(UPC) @cpplike_flags \$(AM_UPCFLAGS) \$(UPCFLAGS)",
'ccer' => 'UPC',
'compiler' => 'UPCCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'lder' => 'UPCLD',
'ld' => '$(UPC)',
'pure' => 1,
'extensions' => ['.upc']);
# Headers.
register_language ('name' => 'header',
'Name' => 'Header',
'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
'.hpp', '.inc'],
# No output.
'output_extensions' => sub { return () },
# Nothing to do.
'_finish' => sub { });
# Vala
register_language ('name' => 'vala',
'Name' => 'Vala',
'config_vars' => ['VALAC'],
'flags' => [],
'compile' => '$(VALAC) $(AM_VALAFLAGS) $(VALAFLAGS)',
'ccer' => 'VALAC',
'compiler' => 'VALACOMPILE',
'extensions' => ['.vala'],
'output_extensions' => sub { (my $ext = $_[0]) =~ s/vala$/c/;
return ($ext,) },
'rule_file' => 'vala',
'_finish' => \&lang_vala_finish,
'_target_hook' => \&lang_vala_target_hook,
'nodist_specific' => 1);
# Yacc (C & C++).
register_language ('name' => 'yacc',
'Name' => 'Yacc',
'config_vars' => ['YACC'],
'flags' => ['YFLAGS'],
'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
'ccer' => 'YACC',
'compiler' => 'YACCCOMPILE',
'extensions' => ['.y'],
'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
return ($ext,) },
'rule_file' => 'yacc',
'_finish' => \&lang_yacc_finish,
'_target_hook' => \&lang_yacc_target_hook,
'nodist_specific' => 1);
register_language ('name' => 'yaccxx',
'Name' => 'Yacc (C++)',
'config_vars' => ['YACC'],
'rule_file' => 'yacc',
'flags' => ['YFLAGS'],
'ccer' => 'YACC',
'compiler' => 'YACCCOMPILE',
'compile' => '$(YACC) $(AM_YFLAGS) $(YFLAGS)',
'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
return ($ext,) },
'_finish' => \&lang_yacc_finish,
'_target_hook' => \&lang_yacc_target_hook,
'nodist_specific' => 1);
# Lex (C & C++).
register_language ('name' => 'lex',
'Name' => 'Lex',
'config_vars' => ['LEX'],
'rule_file' => 'lex',
'flags' => ['LFLAGS'],
'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
'ccer' => 'LEX',
'compiler' => 'LEXCOMPILE',
'extensions' => ['.l'],
'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
return ($ext,) },
'_finish' => \&lang_lex_finish,
'_target_hook' => \&lang_lex_target_hook,
'nodist_specific' => 1);
register_language ('name' => 'lexxx',
'Name' => 'Lex (C++)',
'config_vars' => ['LEX'],
'rule_file' => 'lex',
'flags' => ['LFLAGS'],
'compile' => '$(LEX) $(AM_LFLAGS) $(LFLAGS)',
'ccer' => 'LEX',
'compiler' => 'LEXCOMPILE',
'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
return ($ext,) },
'_finish' => \&lang_lex_finish,
'_target_hook' => \&lang_lex_target_hook,
'nodist_specific' => 1);
# Assembler.
register_language ('name' => 'asm',
'Name' => 'Assembler',
'config_vars' => ['CCAS', 'CCASFLAGS'],
'flags' => ['CCASFLAGS'],
# Users can set AM_CCASFLAGS to include DEFS, INCLUDES,
# or anything else required. They can also set CCAS.
# Or simply use Preprocessed Assembler.
'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
'ccer' => 'CCAS',
'compiler' => 'CCASCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'extensions' => ['.s']);
# Preprocessed Assembler.
register_language ('name' => 'cppasm',
'Name' => 'Preprocessed Assembler',
'config_vars' => ['CCAS', 'CCASFLAGS'],
'autodep' => 'CCAS',
'flags' => ['CCASFLAGS', 'CPPFLAGS'],
'compile' => "\$(CCAS) @cpplike_flags \$(AM_CCASFLAGS) \$(CCASFLAGS)",
'ccer' => 'CPPAS',
'compiler' => 'CPPASCOMPILE',
'libtool_tag' => 'CC',
'compile_flag' => '-c',
'output_flag' => '-o',
'extensions' => ['.S', '.sx']);
# Fortran 77
register_language ('name' => 'f77',
'Name' => 'Fortran 77',
'config_vars' => ['F77'],
'linker' => 'F77LINK',
'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'flags' => ['FFLAGS'],
'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
'ccer' => 'F77',
'compiler' => 'F77COMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'F77',
'lder' => 'F77LD',
'ld' => '$(F77)',
'pure' => 1,
'extensions' => ['.f', '.for']);
# Fortran
register_language ('name' => 'fc',
'Name' => 'Fortran',
'config_vars' => ['FC'],
'linker' => 'FCLINK',
'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'flags' => ['FCFLAGS'],
'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
'ccer' => 'FC',
'compiler' => 'FCCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'FC',
'lder' => 'FCLD',
'ld' => '$(FC)',
'pure' => 1,
'extensions' => ['.f90', '.f95', '.f03', '.f08']);
# Preprocessed Fortran
register_language ('name' => 'ppfc',
'Name' => 'Preprocessed Fortran',
'config_vars' => ['FC'],
'linker' => 'FCLINK',
'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'lder' => 'FCLD',
'ld' => '$(FC)',
'flags' => ['FCFLAGS', 'CPPFLAGS'],
'ccer' => 'PPFC',
'compiler' => 'PPFCCOMPILE',
'compile' => "\$(FC) @cpplike_flags \$(AM_FCFLAGS) \$(FCFLAGS)",
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'FC',
'pure' => 1,
'extensions' => ['.F90','.F95', '.F03', '.F08']);
# Preprocessed Fortran 77
#
# The current support for preprocessing Fortran 77 just involves
# passing "$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
# $(CPPFLAGS)" as additional flags to the Fortran 77 compiler, since
# this is how GNU Make does it; see the "GNU Make Manual, Edition 0.51
# for 'make' Version 3.76 Beta" (specifically, from info file
# '(make)Catalogue of Rules').
#
# A better approach would be to write an Autoconf test
# (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
# Fortran 77 compilers know how to do preprocessing. The Autoconf
# macro AC_PROG_FPP should test the Fortran 77 compiler first for
# preprocessing capabilities, and then fall back on cpp (if cpp were
# available).
register_language ('name' => 'ppf77',
'Name' => 'Preprocessed Fortran 77',
'config_vars' => ['F77'],
'linker' => 'F77LINK',
'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'lder' => 'F77LD',
'ld' => '$(F77)',
'flags' => ['FFLAGS', 'CPPFLAGS'],
'ccer' => 'PPF77',
'compiler' => 'PPF77COMPILE',
'compile' => "\$(F77) @cpplike_flags \$(AM_FFLAGS) \$(FFLAGS)",
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'F77',
'pure' => 1,
'extensions' => ['.F']);
# Ratfor.
register_language ('name' => 'ratfor',
'Name' => 'Ratfor',
'config_vars' => ['F77'],
'linker' => 'F77LINK',
'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'lder' => 'F77LD',
'ld' => '$(F77)',
'flags' => ['RFLAGS', 'FFLAGS'],
# FIXME also FFLAGS.
'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
'ccer' => 'F77',
'compiler' => 'RCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'F77',
'pure' => 1,
'extensions' => ['.r']);
# Java via gcj.
register_language ('name' => 'java',
'Name' => 'Java',
'config_vars' => ['GCJ'],
'linker' => 'GCJLINK',
'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'autodep' => 'GCJ',
'flags' => ['GCJFLAGS'],
'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
'ccer' => 'GCJ',
'compiler' => 'GCJCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'GCJ',
'lder' => 'GCJLD',
'ld' => '$(GCJ)',
'pure' => 1,
'extensions' => ['.java', '.class', '.zip', '.jar']);
################################################################
# Error reporting functions.
# err_am ($MESSAGE, [%OPTIONS])
# -----------------------------
# Uncategorized errors about the current Makefile.am.
sub err_am
{
msg_am ('error', @_);
}
# err_ac ($MESSAGE, [%OPTIONS])
# -----------------------------
# Uncategorized errors about configure.ac.
sub err_ac
{
msg_ac ('error', @_);
}
# msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
# ---------------------------------------
# Messages about about the current Makefile.am.
sub msg_am
{
my ($channel, $msg, %opts) = @_;
msg $channel, "${am_file}.am", $msg, %opts;
}
# msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
# ---------------------------------------
# Messages about about configure.ac.
sub msg_ac
{
my ($channel, $msg, %opts) = @_;
msg $channel, $configure_ac, $msg, %opts;
}
################################################################
# subst ($TEXT)
# -------------
# Return a configure-style substitution using the indicated text.
# We do this to avoid having the substitutions directly in automake.in;
# when we do that they are sometimes removed and this causes confusion
# and bugs.
sub subst
{
my ($text) = @_;
return '@' . $text . '@';
}
################################################################
# $BACKPATH
# backname ($RELDIR)
# -------------------
# If I "cd $RELDIR", then to come back, I should "cd $BACKPATH".
# For instance 'src/foo' => '../..'.
# Works with non strictly increasing paths, i.e., 'src/../lib' => '..'.
sub backname
{
my ($file) = @_;
my @res;
foreach (split (/\//, $file))
{
next if $_ eq '.' || $_ eq '';
if ($_ eq '..')
{
pop @res
or prog_error ("trying to reverse path '$file' pointing outside tree");
}
else
{
push (@res, '..');
}
}
return join ('/', @res) || '.';
}
################################################################
# Silent rules handling functions.
# verbose_var (NAME)
# ------------------
# The public variable stem used to implement silent rules.
sub verbose_var
{
my ($name) = @_;
return 'AM_V_' . $name;
}
# verbose_private_var (NAME)
# --------------------------
# The naming policy for the private variables for silent rules.
sub verbose_private_var
{
my ($name) = @_;
return 'am__v_' . $name;
}
# define_verbose_var (NAME, VAL-IF-SILENT, [VAL-IF-VERBOSE])
# ----------------------------------------------------------
# For silent rules, setup VAR and dispatcher, to expand to
# VAL-IF-SILENT if silent, to VAL-IF-VERBOSE (defaulting to
# empty) if not.
sub define_verbose_var
{
my ($name, $silent_val, $verbose_val) = @_;
$verbose_val = '' unless defined $verbose_val;
my $var = verbose_var ($name);
my $pvar = verbose_private_var ($name);
my $silent_var = $pvar . '_0';
my $verbose_var = $pvar . '_1';
# For typical 'make's, 'configure' replaces AM_V (inside @@) with $(V)
# and AM_DEFAULT_V (inside @@) with $(AM_DEFAULT_VERBOSITY).
# For strict POSIX 2008 'make's, it replaces them with 0 or 1 instead.
# See AM_SILENT_RULES in m4/silent.m4.
define_variable ($var, '$(' . $pvar . '_@'.'AM_V'.'@)', INTERNAL);
define_variable ($pvar . '_', '$(' . $pvar . '_@'.'AM_DEFAULT_V'.'@)',
INTERNAL);
Automake::Variable::define ($silent_var, VAR_AUTOMAKE, '', TRUE,
$silent_val, '', INTERNAL, VAR_ASIS)
if (! vardef ($silent_var, TRUE));
Automake::Variable::define ($verbose_var, VAR_AUTOMAKE, '', TRUE,
$verbose_val, '', INTERNAL, VAR_ASIS)
if (! vardef ($verbose_var, TRUE));
}
# verbose_flag (NAME)
# -------------------
# Contents of '%VERBOSE%' variable to expand before rule command.
sub verbose_flag
{
my ($name) = @_;
return '$(' . verbose_var ($name) . ')';
}
sub verbose_nodep_flag
{
my ($name) = @_;
return '$(' . verbose_var ($name) . subst ('am__nodep') . ')';
}
# silent_flag
# -----------
# Contents of %SILENT%: variable to expand to '@' when silent.
sub silent_flag ()
{
return verbose_flag ('at');
}
# define_verbose_tagvar (NAME)
# ----------------------------
# Engage the needed silent rules machinery for tag NAME.
sub define_verbose_tagvar
{
my ($name) = @_;
define_verbose_var ($name, '@echo " '. $name . ' ' x (8 - length ($name)) . '" $@;');
}
# Engage the needed silent rules machinery for assorted texinfo commands.
sub define_verbose_texinfo ()
{
my @tagvars = ('DVIPS', 'MAKEINFO', 'INFOHTML', 'TEXI2DVI', 'TEXI2PDF');
foreach my $tag (@tagvars)
{
define_verbose_tagvar($tag);
}
define_verbose_var('texinfo', '-q');
define_verbose_var('texidevnull', '> /dev/null');
}
# Engage the needed silent rules machinery for 'libtool --silent'.
sub define_verbose_libtool ()
{
define_verbose_var ('lt', '--silent');
return verbose_flag ('lt');
}
sub handle_silent ()
{
# Define "$(AM_V_P)", expanding to a shell conditional that can be
# used in make recipes to determine whether we are being run in
# silent mode or not. The choice of the name derives from the LISP
# convention of appending the letter 'P' to denote a predicate (see
# also "the '-P' convention" in the Jargon File); we do so for lack
# of a better convention.
define_verbose_var ('P', 'false', ':');
# *Always* provide the user with '$(AM_V_GEN)', unconditionally.
define_verbose_tagvar ('GEN');
define_verbose_var ('at', '@');
}
################################################################
# Handle AUTOMAKE_OPTIONS variable. Return 0 on error, 1 otherwise.
sub handle_options ()
{
my $var = var ('AUTOMAKE_OPTIONS');
if ($var)
{
if ($var->has_conditional_contents)
{
msg_var ('unsupported', $var,
"'AUTOMAKE_OPTIONS' cannot have conditional contents");
}
my @options = map { { option => $_->[1], where => $_->[0] } }
$var->value_as_list_recursive (cond_filter => TRUE,
location => 1);
return 0 unless process_option_list (@options);
}
if ($strictness == GNITS)
{
set_option ('readme-alpha', INTERNAL);
set_option ('std-options', INTERNAL);
set_option ('check-news', INTERNAL);
}
return 1;
}
# shadow_unconditionally ($varname, $where)
# -----------------------------------------
# Return a $(variable) that contains all possible values
# $varname can take.
# If the VAR wasn't defined conditionally, return $(VAR).
# Otherwise we create an am__VAR_DIST variable which contains
# all possible values, and return $(am__VAR_DIST).
sub shadow_unconditionally
{
my ($varname, $where) = @_;
my $var = var $varname;
if ($var->has_conditional_contents)
{
$varname = "am__${varname}_DIST";
my @files = uniq ($var->value_as_list_recursive);
define_pretty_variable ($varname, TRUE, $where, @files);
}
return "\$($varname)"
}
# check_user_variables (@LIST)
# ----------------------------
# Make sure each variable VAR in @LIST does not exist, suggest using AM_VAR
# otherwise.
sub check_user_variables
{
my @dont_override = @_;
foreach my $flag (@dont_override)
{
my $var = var $flag;
if ($var)
{
for my $cond ($var->conditions->conds)
{
if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
{
msg_cond_var ('gnu', $cond, $flag,
"'$flag' is a user variable, "
. "you should not override it;\n"
. "use 'AM_$flag' instead");
}
}
}
}
}
# Call finish function for each language that was used.
sub handle_languages ()
{
if (! option 'no-dependencies')
{
# Include auto-dep code. Don't include it if DEP_FILES would
# be empty.
if (keys %extension_seen && keys %dep_files)
{
my @dep_files = sort keys %dep_files;
# Set location of depcomp.
define_variable ('depcomp',
"\$(SHELL) $am_config_aux_dir/depcomp",
INTERNAL);
define_variable ('am__maybe_remake_depfiles', 'depfiles', INTERNAL);
define_variable ('am__depfiles_remade', "@dep_files", INTERNAL);
$output_rules .= "\n";
my @dist_rms;
foreach my $depfile (@dep_files)
{
push @dist_rms, "\t-rm -f $depfile";
# Generate each 'include' directive individually. Several
# make implementations (IRIX 6, Solaris 10, FreeBSD 8) will
# fail to properly include several files resulting from a
# variable expansion. Just Generating many separate includes
# seems thus safest.
$output_rules .= subst ('AMDEP_TRUE') .
subst ('am__include') .
" " .
subst('am__quote') .
$depfile .
subst('am__quote') .
" " .
"# am--include-marker\n";
}
require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
$output_rules .= file_contents (
'depend', new Automake::Location,
'DISTRMS' => join ("\n", @dist_rms));
}
}
else
{
define_variable ('depcomp', '', INTERNAL);
define_variable ('am__maybe_remake_depfiles', '', INTERNAL);
}
my %done;
# Is the C linker needed?
my $needs_c = 0;
foreach my $ext (sort keys %extension_seen)
{
next unless $extension_map{$ext};
my $lang = $languages{$extension_map{$ext}};
my $rule_file = $lang->rule_file || 'depend2';
# Get information on $LANG.
my $pfx = $lang->autodep;
my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
my ($AMDEP, $FASTDEP) =
(option 'no-dependencies' || $lang->autodep eq 'no')
? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
my $verbose = verbose_flag ($lang->ccer || 'GEN');
my $verbose_nodep = ($AMDEP eq 'FALSE')
? $verbose : verbose_nodep_flag ($lang->ccer || 'GEN');
my $silent = silent_flag ();
my %transform = ('EXT' => $ext,
'PFX' => $pfx,
'FPFX' => $fpfx,
'AMDEP' => $AMDEP,
'FASTDEP' => $FASTDEP,
'-c' => $lang->compile_flag || '',
# These are not used, but they need to be defined
# so transform() do not complain.
SUBDIROBJ => 0,
'DERIVED-EXT' => 'BUG',
DIST_SOURCE => 1,
VERBOSE => $verbose,
'VERBOSE-NODEP' => $verbose_nodep,
SILENT => $silent,
);
# Generate the appropriate rules for this extension.
if (((! option 'no-dependencies') && $lang->autodep ne 'no')
|| defined $lang->compile)
{
# Compute a possible derived extension.
# This is not used by depend2.am.
my $der_ext = ($lang->output_extensions->($ext))[0];
# When we output an inference rule like '.c.o:' we
# have two cases to consider: either subdir-objects
# is used, or it is not.
#
# In the latter case the rule is used to build objects
# in the current directory, and dependencies always
# go into './$(DEPDIR)/'. We can hard-code this value.
#
# In the former case the rule can be used to build
# objects in sub-directories too. Dependencies should
# go into the appropriate sub-directories, e.g.,
# 'sub/$(DEPDIR)/'. The value of this directory
# needs to be computed on-the-fly.
#
# DEPBASE holds the name of this directory, plus the
# basename part of the object file (extensions Po, TPo,
# Plo, TPlo will be added later as appropriate). It is
# either hardcoded, or a shell variable ('$depbase') that
# will be computed by the rule.
my $depbase =
option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
$output_rules .=
file_contents ($rule_file,
new Automake::Location,
%transform,
GENERIC => 1,
'DERIVED-EXT' => $der_ext,
DEPBASE => $depbase,
BASE => '$*',
SOURCE => '$<',
SOURCEFLAG => $sourceflags{$ext} || '',
OBJ => '$@',
OBJOBJ => '$@',
LTOBJ => '$@',
COMPILE => '$(' . $lang->compiler . ')',
LTCOMPILE => '$(LT' . $lang->compiler . ')',
-o => $lang->output_flag,
SUBDIROBJ => !! option 'subdir-objects');
}
# Now include code for each specially handled object with this
# language.
my %seen_files = ();
foreach my $file (@{$lang_specific_files{$lang->name}})
{
my ($derived, $source, $obj, $myext, $srcext, %file_transform) = @$file;
# We might see a given object twice, for instance if it is
# used under different conditions.
next if defined $seen_files{$obj};
$seen_files{$obj} = 1;
prog_error ("found " . $lang->name .
" in handle_languages, but compiler not defined")
unless defined $lang->compile;
my $obj_compile = $lang->compile;
# Rewrite each occurrence of 'AM_$flag' in the compile
# rule into '${derived}_$flag' if it exists.
for my $flag (@{$lang->flags})
{
my $val = "${derived}_$flag";
$obj_compile =~ s/\(AM_$flag\)/\($val\)/
if set_seen ($val);
}
my $libtool_tag = '';
if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
{
$libtool_tag = '--tag=' . $lang->libtool_tag . ' '
}
my $ptltflags = "${derived}_LIBTOOLFLAGS";
$ptltflags = 'AM_LIBTOOLFLAGS' unless set_seen $ptltflags;
my $ltverbose = define_verbose_libtool ();
my $obj_ltcompile =
"\$(LIBTOOL) $ltverbose $libtool_tag\$($ptltflags) \$(LIBTOOLFLAGS) "
. "--mode=compile $obj_compile";
# We _need_ '-o' for per object rules.
my $output_flag = $lang->output_flag || '-o';
my $depbase = dirname ($obj);
$depbase = ''
if $depbase eq '.';
$depbase .= '/'
unless $depbase eq '';
$depbase .= '$(DEPDIR)/' . basename ($obj);
$output_rules .=
file_contents ($rule_file,
new Automake::Location,
%transform,
GENERIC => 0,
DEPBASE => $depbase,
BASE => $obj,
SOURCE => $source,
SOURCEFLAG => $sourceflags{$srcext} || '',
# Use $myext and not '.o' here, in case
# we are actually building a new source
# file -- e.g. via yacc.
OBJ => "$obj$myext",
OBJOBJ => "$obj.obj",
LTOBJ => "$obj.lo",
VERBOSE => $verbose,
'VERBOSE-NODEP' => $verbose_nodep,
SILENT => $silent,
COMPILE => $obj_compile,
LTCOMPILE => $obj_ltcompile,
-o => $output_flag,
%file_transform);
}
# The rest of the loop is done once per language.
next if defined $done{$lang};
$done{$lang} = 1;
# Load the language dependent Makefile chunks.
my %lang = map { uc ($_) => 0 } keys %languages;
$lang{uc ($lang->name)} = 1;
$output_rules .= file_contents ('lang-compile',
new Automake::Location,
%transform, %lang);
# If the source to a program consists entirely of code from a
# 'pure' language, for instance C++ or Fortran 77, then we
# don't need the C compiler code. However if we run into
# something unusual then we do generate the C code. There are
# probably corner cases here that do not work properly.
# People linking Java code to Fortran code deserve pain.
$needs_c ||= ! $lang->pure;
define_compiler_variable ($lang)
if ($lang->compile);
define_linker_variable ($lang)
if ($lang->link);
require_variables ("$am_file.am", $lang->Name . " source seen",
TRUE, @{$lang->config_vars});
# Call the finisher.
$lang->finish;
# Flags listed in '->flags' are user variables (per GNU Standards),
# they should not be overridden in the Makefile...
my @dont_override = @{$lang->flags};
# ... and so is LDFLAGS.
push @dont_override, 'LDFLAGS' if $lang->link;
check_user_variables @dont_override;
}
# If the project is entirely C++ or entirely Fortran 77 (i.e., 1
# suffix rule was learned), don't bother with the C stuff. But if
# anything else creeps in, then use it.
my @languages_seen = map { $languages{$extension_map{$_}}->name }
(keys %extension_seen);
@languages_seen = uniq (@languages_seen);
$needs_c = 1 if @languages_seen > 1;
if ($need_link || $needs_c)
{
define_compiler_variable ($languages{'c'})
unless defined $done{$languages{'c'}};
define_linker_variable ($languages{'c'});
}
}
# append_exeext { PREDICATE } $MACRO
# ----------------------------------
# Append $(EXEEXT) to each filename in $F appearing in the Makefile
# variable $MACRO if &PREDICATE($F) is true. @substitutions@ are
# ignored.
#
# This is typically used on all filenames of *_PROGRAMS, and filenames
# of TESTS that are programs.
sub append_exeext (&$)
{
my ($pred, $macro) = @_;
transform_variable_recursively
($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
sub {
my ($subvar, $val, $cond, $full_cond) = @_;
# Append $(EXEEXT) unless the user did it already, or it's a
# @substitution@.
$val .= '$(EXEEXT)'
if $val !~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/ && &$pred ($val);
return $val;
});
}
# Check to make sure a source defined in LIBOBJS is not explicitly
# mentioned. This is a separate function (as opposed to being inlined
# in handle_source_transform) because it isn't always appropriate to
# do this check.
sub check_libobjs_sources
{
my ($one_file, $unxformed) = @_;
foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
'dist_EXTRA_', 'nodist_EXTRA_')
{
my @files;
my $varname = $prefix . $one_file . '_SOURCES';
my $var = var ($varname);
if ($var)
{
@files = $var->value_as_list_recursive;
}
elsif ($prefix eq '')
{
@files = ($unxformed . '.c');
}
else
{
next;
}
foreach my $file (@files)
{
err_var ($prefix . $one_file . '_SOURCES',
"automatically discovered file '$file' should not" .
" be explicitly mentioned")
if defined $libsources{$file};
}
}
}
# @OBJECTS
# handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
# -----------------------------------------------------------------------------
# Does much of the actual work for handle_source_transform.
# Arguments are:
# $VAR is the name of the variable that the source filenames come from
# $TOPPARENT is the name of the _SOURCES variable which is being processed
# $DERIVED is the name of resulting executable or library
# $OBJ is the object extension (e.g., '.lo')
# $FILE the source file to transform
# %TRANSFORM contains extras arguments to pass to file_contents
# when producing explicit rules
# Result is a list of the names of objects
# %linkers_used will be updated with any linkers needed
sub handle_single_transform
{
my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
my @files = ($_file);
my @result = ();
# Turn sources into objects. We use a while loop like this
# because we might add to @files in the loop.
while (scalar @files > 0)
{
$_ = shift @files;
# Configure substitutions in _SOURCES variables are errors.
if (/^\@.*\@$/)
{
my $parent_msg = '';
$parent_msg = "\nand is referred to from '$topparent'"
if $topparent ne $var->name;
err_var ($var,
"'" . $var->name . "' includes configure substitution '$_'"
. $parent_msg . ";\nconfigure " .
"substitutions are not allowed in _SOURCES variables");
next;
}
# If the source file is in a subdirectory then the '.o' is put
# into the current directory, unless the subdir-objects option
# is in effect.
# Split file name into base and extension.
next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
my $full = $_;
my $directory = $1 || '';
my $base = $2;
my $extension = $3;
# We must generate a rule for the object if it requires its own flags.
my $renamed = 0;
my ($linker, $object);
# This records whether we've seen a derived source file (e.g., yacc
# or lex output).
my $derived_source;
# This holds the 'aggregate context' of the file we are
# currently examining. If the file is compiled with
# per-object flags, then it will be the name of the object.
# Otherwise it will be 'AM'. This is used by the target hook
# language function.
my $aggregate = 'AM';
$extension = derive_suffix ($extension, $obj);
my $lang;
if ($extension_map{$extension} &&
($lang = $languages{$extension_map{$extension}}))
{
# Found the language, so see what it says.
saw_extension ($extension);
# Do we have per-executable flags for this executable?
my $have_per_exec_flags = 0;
my @peflags = @{$lang->flags};
push @peflags, 'LIBTOOLFLAGS' if $obj eq '.lo';
foreach my $flag (@peflags)
{
if (set_seen ("${derived}_$flag"))
{
$have_per_exec_flags = 1;
last;
}
}
# Note: computed subr call. The language rewrite function
# should return one of the LANG_* constants. It could
# also return a list whose first value is such a constant
# and whose second value is a new source extension which
# should be applied. This means this particular language
# generates another source file which we must then process
# further.
my $subr = \&{'lang_' . $lang->name . '_rewrite'};
defined &$subr or $subr = \&lang_sub_obj;
my ($r, $source_extension)
= &$subr ($directory, $base, $extension,
$obj, $have_per_exec_flags, $var);
# Skip this entry if we were asked not to process it.
next if $r == LANG_IGNORE;
# Now extract linker and other info.
$linker = $lang->linker;
my $this_obj_ext;
if (defined $source_extension)
{
$this_obj_ext = $source_extension;
$derived_source = 1;
}
else
{
$this_obj_ext = $obj;
$derived_source = 0;
# Don't ever place built object files in $(srcdir),
# even when sources are specified explicitly as (say)
# '$(srcdir)/foo.c' or '$(top_srcdir)/foo.c'.
# See automake bug#13928.
my @d = split '/', $directory;
if (@d > 0 && option 'subdir-objects')
{
my $d = $d[0];
if ($d eq '$(srcdir)' or $d eq '${srcdir}')
{
shift @d;
}
elsif ($d eq '$(top_srcdir)' or $d eq '${top_srcdir}')
{
$d[0] = '$(top_builddir)';
}
$directory = join '/', @d;
}
}
$object = $base . $this_obj_ext;
if ($have_per_exec_flags)
{
# We have a per-executable flag in effect for this
# object. In this case we rewrite the object's
# name to ensure it is unique.
# We choose the name 'DERIVED_OBJECT' to ensure (1) uniqueness,
# and (2) continuity between invocations. However, this will
# result in a name that is too long for losing systems, in some
# situations. So we attempt to shorten automatically under
# subdir-objects, and provide _SHORTNAME to override as a last
# resort. If subdir-object is in effect, it's usually
# unnecessary to use the complete 'DERIVED_OBJECT' (that is
# often the result from %canon_reldir%/%C% usage) since objects
# are placed next to their source file. Generally, this means
# it is already unique within that directory (see below for an
# exception). Thus, we try to avoid unnecessarily long file
# names by stripping the directory components of
# 'DERIVED_OBJECT'. This allows avoiding explicit _SHORTNAME
# usage in many cases. EXCEPTION: If two (or more) targets in
# different directories but with the same base name (after
# canonicalization), using target-specific FLAGS, link the same
# object, then this logic clashes. Thus, we don't strip if
# this is detected.
my $dname = $derived;
if ($directory ne ''
&& option 'subdir-objects'
&& none { $dname =~ /$_[0]$/ } @dup_shortnames)
{
# At this point, we don't clear information about what
# parts of $derived are truly file name components. We can
# determine that by comparing against the canonicalization
# of $directory.
my $dir = $directory . "/";
my $cdir = canonicalize ($dir);
my $dir_len = length ($dir);
# Make sure we only strip full file name components. This
# is done by repeatedly trying to find cdir at the
# beginning. Each iteration removes one file name
# component from the end of cdir.
while ($dir_len > 0 && index ($derived, $cdir) != 0)
{
# Eventually $dir_len becomes 0.
$dir_len = rindex ($dir, "/", $dir_len - 2) + 1;
$cdir = substr ($cdir, 0, $dir_len);
}
$dname = substr ($derived, $dir_len);
}
my $var = var ($derived . '_SHORTNAME');
if ($var)
{
# FIXME: should use the same Condition as
# the _SOURCES variable. But this is really
# silly overkill -- nobody should have
# conditional shortnames.
$dname = $var->variable_value;
}
$object = $dname . '-' . $object;
prog_error ($lang->name . " flags defined without compiler")
if ! defined $lang->compile;
$renamed = 1;
}
# If rewrite said it was ok, put the object into a subdir.
if ($directory ne '')
{
if ($r == LANG_SUBDIR)
{
$object = $directory . '/' . $object;
}
else
{
# Since the next major version of automake (2.0) will
# make the behaviour so far only activated with the
# 'subdir-object' option mandatory, it's better if we
# start warning users not using that option.
# As suggested by Peter Johansson, we strive to avoid
# the warning when it would be irrelevant, i.e., if
# all source files sit in "current" directory.
msg_var 'unsupported', $var,
"source file '$full' is in a subdirectory,"
. "\nbut option 'subdir-objects' is disabled";
msg 'unsupported', INTERNAL, <<'EOF', uniq_scope => US_GLOBAL;
possible forward-incompatibility.
At least a source file is in a subdirectory, but the 'subdir-objects'
automake option hasn't been enabled. For now, the corresponding output
object file(s) will be placed in the top-level directory. However,
this behaviour will change in future Automake versions: they will
unconditionally cause object files to be placed in the same subdirectory
of the corresponding sources.
You are advised to start using 'subdir-objects' option throughout your
project, to avoid future incompatibilities.
EOF
}
}
# If the object file has been renamed (because per-target
# flags are used) we cannot compile the file with an
# inference rule: we need an explicit rule.
#
# If the source is in a subdirectory and the object is in
# the current directory, we also need an explicit rule.
#
# If both source and object files are in a subdirectory
# (this happens when the subdir-objects option is used),
# then the inference will work.
#
# The latter case deserves a historical note. When the
# subdir-objects option was added on 1999-04-11 it was
# thought that inferences rules would work for
# subdirectory objects too. Later, on 1999-11-22,
# automake was changed to output explicit rules even for
# subdir-objects. Nobody remembers why, but this occurred
# soon after the merge of the user-dep-gen-branch so it
# might be related. In late 2003 people complained about
# the size of the generated Makefile.ins (libgcj, with
# 2200+ subdir objects was reported to have a 9MB
# Makefile), so we now rely on inference rules again.
# Maybe we'll run across the same issue as in the past,
# but at least this time we can document it. However since
# dependency tracking has evolved it is possible that
# our old problem no longer exists.
# Using inference rules for subdir-objects has been tested
# with GNU make, Solaris make, Ultrix make, BSD make,
# HP-UX make, and OSF1 make successfully.
if ($renamed
|| ($directory ne '' && ! option 'subdir-objects')
# We must also use specific rules for a nodist_ source
# if its language requests it.
|| ($lang->nodist_specific && ! $transform{'DIST_SOURCE'}))
{
my $obj_sans_ext = substr ($object, 0,
- length ($this_obj_ext));
my $full_ansi;
if ($directory ne '')
{
$full_ansi = $directory . '/' . $base . $extension;
}
else
{
$full_ansi = $base . $extension;
}
my @specifics = ($full_ansi, $obj_sans_ext,
# Only use $this_obj_ext in the derived
# source case because in the other case we
# *don't* want $(OBJEXT) to appear here.
($derived_source ? $this_obj_ext : '.o'),
$extension);
# If we renamed the object then we want to use the
# per-executable flag name. But if this is simply a
# subdir build then we still want to use the AM_ flag
# name.
if ($renamed)
{
unshift @specifics, $derived;
$aggregate = $derived;
}
else
{
unshift @specifics, 'AM';
}
# Each item on this list is a reference to a list consisting
# of four values followed by additional transform flags for
# file_contents. The four values are the derived flag prefix
# (e.g. for 'foo_CFLAGS', it is 'foo'), the name of the
# source file, the base name of the output file, and
# the extension for the object file.
push (@{$lang_specific_files{$lang->name}},
[@specifics, %transform]);
}
}
elsif ($extension eq $obj)
{
# This is probably the result of a direct suffix rule.
# In this case we just accept the rewrite.
$object = "$base$extension";
$object = "$directory/$object" if $directory ne '';
$linker = '';
}
else
{
# No error message here. Used to have one, but it was
# very unpopular.
# FIXME: we could potentially do more processing here,
# perhaps treating the new extension as though it were a
# new source extension (as above). This would require
# more restructuring than is appropriate right now.
next;
}
err_am "object '$object' created by '$full' and '$object_map{$object}'"
if (defined $object_map{$object}
&& $object_map{$object} ne $full);
my $comp_val = (($object =~ /\.lo$/)
? COMPILE_LIBTOOL : COMPILE_ORDINARY);
(my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
if (defined $object_compilation_map{$comp_obj}
&& $object_compilation_map{$comp_obj} != 0
# Only see the error once.
&& ($object_compilation_map{$comp_obj}
!= (COMPILE_LIBTOOL | COMPILE_ORDINARY))
&& $object_compilation_map{$comp_obj} != $comp_val)
{
err_am "object '$comp_obj' created both with libtool and without";
}
$object_compilation_map{$comp_obj} |= $comp_val;
if (defined $lang)
{
# Let the language do some special magic if required.
$lang->target_hook ($aggregate, $object, $full, %transform);
}
if ($derived_source)
{
prog_error ($lang->name . " has automatic dependency tracking")
if $lang->autodep ne 'no';
# Make sure this new source file is handled next. That will
# make it appear to be at the right place in the list.
unshift (@files, $object);
# Distribute derived sources unless the source they are
# derived from is not.
push_dist_common ($object)
unless ($topparent =~ /^(?:nobase_)?nodist_/);
next;
}
$linkers_used{$linker} = 1;
push (@result, $object);
if (! defined $object_map{$object})
{
my @dep_list = ();
$object_map{$object} = $full;
# If resulting object is in subdir, we need to make
# sure the subdir exists at build time.
if ($object =~ /\//)
{
# FIXME: check that $DIRECTORY is somewhere in the
# project
# For Java, the way we're handling it right now, a
# '..' component doesn't make sense.
if ($lang && $lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
{
err_am "'$full' should not contain a '..' component";
}
# Make sure *all* objects files in the subdirectory are
# removed by "make mostlyclean". Not only this is more
# efficient than listing the object files to be removed
# individually (which would cause an 'rm' invocation for
# each of them -- very inefficient, see bug#10697), it
# would also leave stale object files in the subdirectory
# whenever a source file there is removed or renamed.
$compile_clean_files{"$directory/*.\$(OBJEXT)"} = MOSTLY_CLEAN;
if ($object =~ /\.lo$/)
{
# If we have a libtool object, then we also must remove
# any '.lo' objects in its same subdirectory.
$compile_clean_files{"$directory/*.lo"} = MOSTLY_CLEAN;
# Remember to cleanup .libs/ in this directory.
$libtool_clean_directories{$directory} = 1;
}
push (@dep_list, require_build_directory ($directory));
# If we're generating dependencies, we also want
# to make sure that the appropriate subdir of the
# .deps directory is created.
push (@dep_list,
require_build_directory ($directory . '/$(DEPDIR)'))
unless option 'no-dependencies';
}
pretty_print_rule ($object . ':', "\t", @dep_list)
if scalar @dep_list > 0;
}
# Transform .o or $o file into .P file (for automatic
# dependency code).
# Properly flatten multiple adjacent slashes, as Solaris 10 make
# might fail over them in an include statement.
# Leading double slashes may be special, as per Posix, so deal
# with them carefully.
if ($lang && $lang->autodep ne 'no')
{
my $depfile = $object;
$depfile =~ s/\.([^.]*)$/.P$1/;
$depfile =~ s/\$\(OBJEXT\)$/o/;
my $maybe_extra_leading_slash = '';
$maybe_extra_leading_slash = '/' if $depfile =~ m,^//[^/],;
$depfile =~ s,/+,/,g;
my $basename = basename ($depfile);
# This might make $dirname empty, but we account for that below.
(my $dirname = dirname ($depfile)) =~ s/\/*$//;
$dirname = $maybe_extra_leading_slash . $dirname;
$dep_files{$dirname . '/$(DEPDIR)/' . $basename} = 1;
}
}
return @result;
}
# $LINKER
# define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
# $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
# ---------------------------------------------------------------------------
# Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
#
# Arguments are:
# $VAR is the name of the _SOURCES variable
# $OBJVAR is the name of the _OBJECTS variable if known (otherwise
# it will be generated and returned).
# $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
# work done to determine the linker will be).
# $ONE_FILE is the canonical (transformed) name of object to build
# $OBJ is the object extension (i.e. either '.o' or '.lo').
# $TOPPARENT is the _SOURCES variable being processed.
# $WHERE context into which this definition is done
# %TRANSFORM extra arguments to pass to file_contents when producing
# rules
#
# Result is a pair ($LINKER, $OBJVAR):
# $LINKER is a boolean, true if a linker is needed to deal with the objects
sub define_objects_from_sources
{
my ($var, $objvar, $nodefine, $one_file,
$obj, $topparent, $where, %transform) = @_;
my $needlinker = "";
transform_variable_recursively
($var, $objvar, 'am__objects', $nodefine, $where,
# The transform code to run on each filename.
sub {
my ($subvar, $val, $cond, $full_cond) = @_;
my @trans = handle_single_transform ($subvar, $topparent,
$one_file, $obj, $val,
%transform);
$needlinker = "true" if @trans;
return @trans;
});
return $needlinker;
}
# handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
# -----------------------------------------------------------------------------
# Handle SOURCE->OBJECT transform for one program or library.
# Arguments are:
# canonical (transformed) name of target to build
# actual target of object to build
# object extension (i.e., either '.o' or '$o')
# location of the source variable
# extra arguments to pass to file_contents when producing rules
# Return the name of the linker variable that must be used.
# Empty return means just use 'LINK'.
sub handle_source_transform
{
# one_file is canonical name. unxformed is given name. obj is
# object extension.
my ($one_file, $unxformed, $obj, $where, %transform) = @_;
my $linker = '';
# No point in continuing if _OBJECTS is defined.
return if reject_var ($one_file . '_OBJECTS',
$one_file . '_OBJECTS should not be defined');
my %used_pfx = ();
my $needlinker;
%linkers_used = ();
foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
'dist_EXTRA_', 'nodist_EXTRA_')
{
my $varname = $prefix . $one_file . "_SOURCES";
my $var = var $varname;
next unless $var;
# We are going to define _OBJECTS variables using the prefix.
# Then we glom them all together. So we can't use the null
# prefix here as we need it later.
my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
# Keep track of which prefixes we saw.
$used_pfx{$xpfx} = 1
unless $prefix =~ /EXTRA_/;
push @sources, "\$($varname)";
push @dist_sources, shadow_unconditionally ($varname, $where)
unless (option ('no-dist') || $prefix =~ /^nodist_/);
$needlinker |=
define_objects_from_sources ($varname,
$xpfx . $one_file . '_OBJECTS',
!!($prefix =~ /EXTRA_/),
$one_file, $obj, $varname, $where,
DIST_SOURCE => ($prefix !~ /^nodist_/),
%transform);
}
if ($needlinker)
{
$linker ||= resolve_linker (%linkers_used);
}
my @keys = sort keys %used_pfx;
if (scalar @keys == 0)
{
# The default source for libfoo.la is libfoo.c, but for
# backward compatibility we first look at libfoo_la.c,
# if no default source suffix is given.
my $old_default_source = "$one_file.c";
my $ext_var = var ('AM_DEFAULT_SOURCE_EXT');
my $default_source_ext = $ext_var ? variable_value ($ext_var) : '.c';
msg_var ('unsupported', $ext_var, $ext_var->name . " can assume at most one value")
if $default_source_ext =~ /[\t ]/;
(my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,$default_source_ext,;
# TODO: Remove this backward-compatibility hack in Automake 2.0.
if ($old_default_source ne $default_source
&& !$ext_var
&& (rule $old_default_source
|| rule '$(srcdir)/' . $old_default_source
|| rule '${srcdir}/' . $old_default_source
|| -f $old_default_source))
{
my $loc = $where->clone;
$loc->pop_context;
msg ('obsolete', $loc,
"the default source for '$unxformed' has been changed "
. "to '$default_source'.\n(Using '$old_default_source' for "
. "backward compatibility.)");
$default_source = $old_default_source;
}
# If a rule exists to build this source with a $(srcdir)
# prefix, use that prefix in our variables too. This is for
# the sake of BSD Make.
if (rule '$(srcdir)/' . $default_source
|| rule '${srcdir}/' . $default_source)
{
$default_source = '$(srcdir)/' . $default_source;
}
define_variable ($one_file . "_SOURCES", $default_source, $where);
push (@sources, $default_source);
push (@dist_sources, $default_source);
%linkers_used = ();
my (@result) =
handle_single_transform ($one_file . '_SOURCES',
$one_file . '_SOURCES',
$one_file, $obj,
$default_source, %transform);
$linker ||= resolve_linker (%linkers_used);
define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
}
else
{
@keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
}
# If we want to use 'LINK' we must make sure it is defined.
if ($linker eq '')
{
$need_link = 1;
}
return $linker;
}
# handle_lib_objects ($XNAME, $VAR)
# ---------------------------------
# Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
# Also, generate _DEPENDENCIES variable if appropriate.
# Arguments are:
# transformed name of object being built, or empty string if no object
# name of _LDADD/_LIBADD-type variable to examine
# Returns 1 if LIBOBJS seen, 0 otherwise.
sub handle_lib_objects
{
my ($xname, $varname) = @_;
my $var = var ($varname);
prog_error "'$varname' undefined"
unless $var;
prog_error "unexpected variable name '$varname'"
unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
my $prefix = $1 || 'AM_';
my $seen_libobjs = 0;
my $flagvar = 0;
transform_variable_recursively
($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
! $xname, INTERNAL,
# Transformation function, run on each filename.
sub {
my ($subvar, $val, $cond, $full_cond) = @_;
if ($val =~ /^-/)
{
# Skip -lfoo and -Ldir silently; these are explicitly allowed.
if ($val !~ /^-[lL]/ &&
# Skip -dlopen and -dlpreopen; these are explicitly allowed
# for Libtool libraries or programs. (Actually we are a bit
# lax here since this code also applies to non-libtool
# libraries or programs, for which -dlopen and -dlopreopen
# are pure nonsense. Diagnosing this doesn't seem very
# important: the developer will quickly get complaints from
# the linker.)
$val !~ /^-dl(?:pre)?open$/ &&
# Only get this error once.
! $flagvar)
{
$flagvar = 1;
# FIXME: should display a stack of nested variables
# as context when $var != $subvar.
err_var ($var, "linker flags such as '$val' belong in "
. "'${prefix}LDFLAGS'");
}
return ();
}
elsif ($val !~ /^\@.*\@$/)
{
# Assume we have a file of some sort, and output it into the
# dependency variable. Autoconf substitutions are not output;
# rarely is a new dependency substituted into e.g. foo_LDADD
# -- but bad things (e.g. -lX11) are routinely substituted.
# Note that LIBOBJS and ALLOCA are exceptions to this rule,
# and handled specially below.
return $val;
}
elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
{
handle_LIBOBJS ($subvar, $cond, $1);
$seen_libobjs = 1;
return $val;
}
elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
{
handle_ALLOCA ($subvar, $cond, $1);
return $val;
}
else
{
return ();
}
});
return $seen_libobjs;
}
# handle_LIBOBJS_or_ALLOCA ($VAR, $BASE)
# --------------------------------------
# Definitions common to LIBOBJS and ALLOCA.
# VAR should be one of LIBOBJS, LTLIBOBJS, ALLOCA, or LTALLOCA.
# BASE should be one base file name from AC_LIBSOURCE, or alloca.
sub handle_LIBOBJS_or_ALLOCA
{
my ($var, $base) = @_;
my $dir = '';
# If LIBOBJS files must be built in another directory we have
# to define LIBOBJDIR and ensure the files get cleaned.
# Otherwise LIBOBJDIR can be left undefined, and the cleaning
# is achieved by 'rm -f *.$(OBJEXT)' in compile.am.
if ($config_libobj_dir
&& $relative_dir ne $config_libobj_dir)
{
if (option 'subdir-objects')
{
# In the top-level Makefile we do not use $(top_builddir), because
# we are already there, and since the targets are built without
# a $(top_builddir), it helps BSD Make to match them with
# dependencies.
$dir = "$config_libobj_dir/"
if $config_libobj_dir ne '.';
$dir = backname ($relative_dir) . "/$dir"
if $relative_dir ne '.';
define_variable ('LIBOBJDIR', "$dir", INTERNAL);
if ($dir && !defined $clean_files{"$dir$base.\$(OBJEXT)"})
{
my $dirstamp = require_build_directory ($dir);
$output_rules .= "$dir$base.\$(OBJEXT): $dirstamp\n";
$output_rules .= "$dir$base.lo: $dirstamp\n"
if ($var =~ /^LT/);
}
# libtool might create .$(OBJEXT) as a side-effect of using
# LTLIBOBJS or LTALLOCA.
$clean_files{"$dir$base.\$(OBJEXT)"} = MOSTLY_CLEAN;
$clean_files{"$dir$base.lo"} = MOSTLY_CLEAN
if ($var =~ /^LT/);
}
else
{
error ("'\$($var)' cannot be used outside '$config_libobj_dir' if"
. " 'subdir-objects' is not set");
}
}
return $dir;
}
sub handle_LIBOBJS
{
my ($var, $cond, $lt) = @_;
my $myobjext = $lt ? 'lo' : 'o';
$lt ||= '';
$var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
if ! keys %libsources;
foreach my $iter (keys %libsources)
{
my $dir = '';
if ($iter =~ /^(.*)(\.[cly])$/)
{
saw_extension ($2);
saw_extension ('.c');
$dir = handle_LIBOBJS_or_ALLOCA ("${lt}LIBOBJS", $1);
}
if ($iter =~ /\.h$/)
{
require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
}
elsif ($iter ne 'alloca.c')
{
my $rewrite = $iter;
$rewrite =~ s/\.c$/.P$myobjext/;
$dep_files{$dir . '$(DEPDIR)/' . $rewrite} = 1;
$rewrite = "^" . quotemeta ($iter) . "\$";
# Only require the file if it is not a built source.
my $bs = var ('BUILT_SOURCES');
if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
{
require_libsource_with_macro ($cond, $var, FOREIGN, $iter);
}
}
}
}
sub handle_ALLOCA
{
my ($var, $cond, $lt) = @_;
my $myobjext = $lt ? 'lo' : 'o';
$lt ||= '';
my $dir = handle_LIBOBJS_or_ALLOCA ("${lt}ALLOCA", "alloca");
$dir eq '' and $dir = './';
$var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
$dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1;
require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c');
saw_extension ('.c');
}
# Canonicalize the input parameter.
sub canonicalize
{
my ($string) = @_;
$string =~ tr/A-Za-z0-9_\@/_/c;
return $string;
}
# Canonicalize a name, and check to make sure the non-canonical name
# is never used. Returns canonical name. Arguments are name and a
# list of suffixes to check for.
sub check_canonical_spelling
{
my ($name, @suffixes) = @_;
my $xname = canonicalize ($name);
if ($xname ne $name)
{
foreach my $xt (@suffixes)
{
reject_var ("$name$xt", "use '$xname$xt', not '$name$xt'");
}
}
return $xname;
}
# Set up the compile suite.
sub handle_compile ()
{
return if ! $must_handle_compiled_objects;
# Boilerplate.
my $default_includes = '';
if (! option 'nostdinc')
{
my @incs = ('-I.', subst ('am__isrc'));
my $var = var 'CONFIG_HEADER';
if ($var)
{
foreach my $hdr (split (' ', $var->variable_value))
{
push @incs, '-I' . dirname ($hdr);
}
}
# We want '-I. -I$(srcdir)', but the latter -I is redundant
# and unaesthetic in non-VPATH builds. We use `-I.@am__isrc@`
# instead. It will be replaced by '-I.' or '-I. -I$(srcdir)'.
# Items in CONFIG_HEADER are never in $(srcdir) so it is safe
# to just put @am__isrc@ right after '-I.', without a space.
($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
}
my (@mostly_rms, @dist_rms);
foreach my $item (sort keys %compile_clean_files)
{
if ($compile_clean_files{$item} == MOSTLY_CLEAN)
{
push (@mostly_rms, "\t-rm -f $item");
}
elsif ($compile_clean_files{$item} == DIST_CLEAN)
{
push (@dist_rms, "\t-rm -f $item");
}
else
{
prog_error 'invalid entry in %compile_clean_files';
}
}
my ($coms, $vars, $rules) =
file_contents_internal (1, "$libdir/am/compile.am",
new Automake::Location,
'DEFAULT_INCLUDES' => $default_includes,
'MOSTLYRMS' => join ("\n", @mostly_rms),
'DISTRMS' => join ("\n", @dist_rms));
$output_vars .= $vars;
$output_rules .= "$coms$rules";
}
# Handle libtool rules.
sub handle_libtool ()
{
return unless var ('LIBTOOL');
# Libtool requires some files, but only at top level.
# (Starting with Libtool 2.0 we do not have to bother. These
# requirements are done with AC_REQUIRE_AUX_FILE.)
require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
if $relative_dir eq '.' && ! $libtool_new_api;
my @libtool_rms;
foreach my $item (sort keys %libtool_clean_directories)
{
my $dir = ($item eq '.') ? '' : "$item/";
# .libs is for Unix, _libs for DOS.
push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
}
check_user_variables 'LIBTOOLFLAGS';
# Output the libtool compilation rules.
$output_rules .= file_contents ('libtool',
new Automake::Location,
LTRMS => join ("\n", @libtool_rms));
}
# Check for duplicate targets
sub handle_targets ()
{
my %seen = ();
my @dups = ();
@proglist = am_install_var ('progs', 'PROGRAMS',
'bin', 'sbin', 'libexec', 'pkglibexec',
'noinst', 'check');
@liblist = am_install_var ('libs', 'LIBRARIES',
'lib', 'pkglib', 'noinst', 'check');
@ltliblist = am_install_var ('ltlib', 'LTLIBRARIES',
'noinst', 'lib', 'pkglib', 'check');
# Record duplications that may arise after canonicalization of the
# base names, in order to prevent object file clashes in the presence
# of target-specific *FLAGS
my @targetlist = (@proglist, @liblist, @ltliblist);
foreach my $pair (@targetlist)
{
my $base = canonicalize (basename (@$pair[1]));
push (@dup_shortnames, $base) if ($seen{$base});
$seen{$base} = $base;
}
}
sub handle_programs ()
{
return if ! @proglist;
$must_handle_compiled_objects = 1;
my $seen_global_libobjs =
var ('LDADD') && handle_lib_objects ('', 'LDADD');
foreach my $pair (@proglist)
{
my ($where, $one_file) = @$pair;
my $seen_libobjs = 0;
my $obj = '.$(OBJEXT)';
$known_programs{$one_file} = $where;
# Canonicalize names and check for misspellings.
my $xname = check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
'_SOURCES', '_OBJECTS',
'_DEPENDENCIES');
$where->push_context ("while processing program '$one_file'");
$where->set (INTERNAL->get);
my $linker = handle_source_transform ($xname, $one_file, $obj, $where,
NONLIBTOOL => 1, LIBTOOL => 0);
if (var ($xname . "_LDADD"))
{
$seen_libobjs = handle_lib_objects ($xname, $xname . '_LDADD');
}
else
{
# User didn't define prog_LDADD override. So do it.
define_variable ($xname . '_LDADD', '$(LDADD)', $where);
# This does a bit too much work. But we need it to
# generate _DEPENDENCIES when appropriate.
if (var ('LDADD'))
{
$seen_libobjs = handle_lib_objects ($xname, 'LDADD');
}
}
reject_var ($xname . '_LIBADD',
"use '${xname}_LDADD', not '${xname}_LIBADD'");
set_seen ($xname . '_DEPENDENCIES');
set_seen ('EXTRA_' . $xname . '_DEPENDENCIES');
set_seen ($xname . '_LDFLAGS');
# Determine program to use for link.
my($xlink, $vlink) = define_per_target_linker_variable ($linker, $xname);
$vlink = verbose_flag ($vlink || 'GEN');
# If the resulting program lies in a subdirectory,
# ensure that the directory exists before we need it.
my $dirstamp = require_build_directory_maybe ($one_file);
$libtool_clean_directories{dirname ($one_file)} = 1;
$output_rules .= file_contents ('program',
$where,
PROGRAM => $one_file,
XPROGRAM => $xname,
XLINK => $xlink,
VERBOSE => $vlink,
DIRSTAMP => $dirstamp,
EXEEXT => '$(EXEEXT)');
if ($seen_libobjs || $seen_global_libobjs)
{
if (var ($xname . '_LDADD'))
{
check_libobjs_sources ($xname, $xname . '_LDADD');
}
elsif (var ('LDADD'))
{
check_libobjs_sources ($xname, 'LDADD');
}
}
}
}
sub handle_libraries ()
{
return if ! @liblist;
$must_handle_compiled_objects = 1;
my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
'noinst', 'check');
if (@prefix)
{
my $var = rvar ($prefix[0] . '_LIBRARIES');
$var->requires_variables ('library used', 'RANLIB');
}
define_variable ('AR', 'ar', INTERNAL);
define_variable ('ARFLAGS', 'cru', INTERNAL);
define_verbose_tagvar ('AR');
foreach my $pair (@liblist)
{
my ($where, $onelib) = @$pair;
my $seen_libobjs = 0;
# Check that the library fits the standard naming convention.
my $bn = basename ($onelib);
if ($bn !~ /^lib.*\.a$/)
{
$bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
my $suggestion = dirname ($onelib) . "/$bn";
$suggestion =~ s|^\./||g;
msg ('error-gnu/warn', $where,
"'$onelib' is not a standard library name\n"
. "did you mean '$suggestion'?")
}
($known_libraries{$onelib} = $bn) =~ s/\.a$//;
$where->push_context ("while processing library '$onelib'");
$where->set (INTERNAL->get);
my $obj = '.$(OBJEXT)';
# Canonicalize names and check for misspellings.
my $xlib = check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
'_OBJECTS', '_DEPENDENCIES',
'_AR');
if (! var ($xlib . '_AR'))
{
define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
}
# Generate support for conditional object inclusion in
# libraries.
if (var ($xlib . '_LIBADD'))
{
if (handle_lib_objects ($xlib, $xlib . '_LIBADD'))
{
$seen_libobjs = 1;
}
}
else
{
define_variable ($xlib . "_LIBADD", '', $where);
}
reject_var ($xlib . '_LDADD',
"use '${xlib}_LIBADD', not '${xlib}_LDADD'");
# Make sure we at look at this.
set_seen ($xlib . '_DEPENDENCIES');
set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
handle_source_transform ($xlib, $onelib, $obj, $where,
NONLIBTOOL => 1, LIBTOOL => 0);
# If the resulting library lies in a subdirectory,
# make sure this directory will exist.
my $dirstamp = require_build_directory_maybe ($onelib);
my $verbose = verbose_flag ('AR');
my $silent = silent_flag ();
$output_rules .= file_contents ('library',
$where,
VERBOSE => $verbose,
SILENT => $silent,
LIBRARY => $onelib,
XLIBRARY => $xlib,
DIRSTAMP => $dirstamp);
if ($seen_libobjs)
{
if (var ($xlib . '_LIBADD'))
{
check_libobjs_sources ($xlib, $xlib . '_LIBADD');
}
}
if (! $seen_ar)
{
msg ('extra-portability', $where,
"'$onelib': linking libraries using a non-POSIX\n"
. "archiver requires 'AM_PROG_AR' in '$configure_ac'")
}
}
}
sub handle_ltlibraries ()
{
return if ! @ltliblist;
$must_handle_compiled_objects = 1;
my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
'noinst', 'check');
if (@prefix)
{
my $var = rvar ($prefix[0] . '_LTLIBRARIES');
$var->requires_variables ('Libtool library used', 'LIBTOOL');
}
my %instdirs = ();
my %instsubdirs = ();
my %instconds = ();
my %liblocations = (); # Location (in Makefile.am) of each library.
foreach my $key (@prefix)
{
# Get the installation directory of each library.
my $dir = $key;
my $strip_subdir = 1;
if ($dir =~ /^nobase_/)
{
$dir =~ s/^nobase_//;
$strip_subdir = 0;
}
my $var = rvar ($key . '_LTLIBRARIES');
# We reject libraries which are installed in several places
# in the same condition, because we can only specify one
# '-rpath' option.
$var->traverse_recursively
(sub
{
my ($var, $val, $cond, $full_cond) = @_;
my $hcond = $full_cond->human;
my $where = $var->rdef ($cond)->location;
my $ldir = '';
$ldir = '/' . dirname ($val)
if (!$strip_subdir);
# A library cannot be installed in different directories
# in overlapping conditions.
if (exists $instconds{$val})
{
my ($msg, $acond) =
$instconds{$val}->ambiguous_p ($val, $full_cond);
if ($msg)
{
error ($where, $msg, partial => 1);
my $dirtxt = "installed " . ($strip_subdir ? "in" : "below") . " '$dir'";
$dirtxt = "built for '$dir'"
if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
my $dircond =
$full_cond->true ? "" : " in condition $hcond";
error ($where, "'$val' should be $dirtxt$dircond ...",
partial => 1);
my $hacond = $acond->human;
my $adir = $instdirs{$val}{$acond};
my $adirtxt = "installed in '$adir'";
$adirtxt = "built for '$adir'"
if ($adir eq 'EXTRA' || $adir eq 'noinst'
|| $adir eq 'check');
my $adircond = $acond->true ? "" : " in condition $hacond";
my $onlyone = ($dir ne $adir) ?
("\nLibtool libraries can be built for only one "
. "destination") : "";
error ($liblocations{$val}{$acond},
"... and should also be $adirtxt$adircond.$onlyone");
return;
}
}
else
{
$instconds{$val} = new Automake::DisjConditions;
}
$instdirs{$val}{$full_cond} = $dir;
$instsubdirs{$val}{$full_cond} = $ldir;
$liblocations{$val}{$full_cond} = $where;
$instconds{$val} = $instconds{$val}->merge ($full_cond);
},
sub
{
return ();
},
skip_ac_subst => 1);
}
foreach my $pair (@ltliblist)
{
my ($where, $onelib) = @$pair;
my $seen_libobjs = 0;
my $obj = '.lo';
# Canonicalize names and check for misspellings.
my $xlib = check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
'_SOURCES', '_OBJECTS',
'_DEPENDENCIES');
# Check that the library fits the standard naming convention.
my $libname_rx = '^lib.*\.la';
my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
my $ldvar2 = var ('LDFLAGS');
if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
|| ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
{
# Relax name checking for libtool modules.
$libname_rx = '\.la';
}
my $bn = basename ($onelib);
if ($bn !~ /$libname_rx$/)
{
my $type = 'library';
if ($libname_rx eq '\.la')
{
$bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
$type = 'module';
}
else
{
$bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
}
my $suggestion = dirname ($onelib) . "/$bn";
$suggestion =~ s|^\./||g;
msg ('error-gnu/warn', $where,
"'$onelib' is not a standard libtool $type name\n"
. "did you mean '$suggestion'?")
}
($known_libraries{$onelib} = $bn) =~ s/\.la$//;
$where->push_context ("while processing Libtool library '$onelib'");
$where->set (INTERNAL->get);
# Make sure we look at these.
set_seen ($xlib . '_LDFLAGS');
set_seen ($xlib . '_DEPENDENCIES');
set_seen ('EXTRA_' . $xlib . '_DEPENDENCIES');
# Generate support for conditional object inclusion in
# libraries.
if (var ($xlib . '_LIBADD'))
{
if (handle_lib_objects ($xlib, $xlib . '_LIBADD'))
{
$seen_libobjs = 1;
}
}
else
{
define_variable ($xlib . "_LIBADD", '', $where);
}
reject_var ("${xlib}_LDADD",
"use '${xlib}_LIBADD', not '${xlib}_LDADD'");
my $linker = handle_source_transform ($xlib, $onelib, $obj, $where,
NONLIBTOOL => 0, LIBTOOL => 1);
# Determine program to use for link.
my($xlink, $vlink) = define_per_target_linker_variable ($linker, $xlib);
$vlink = verbose_flag ($vlink || 'GEN');
my $rpathvar = "am_${xlib}_rpath";
my $rpath = "\$($rpathvar)";
foreach my $rcond ($instconds{$onelib}->conds)
{
my $val;
if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
|| $instdirs{$onelib}{$rcond} eq 'noinst'
|| $instdirs{$onelib}{$rcond} eq 'check')
{
# It's an EXTRA_ library, so we can't specify -rpath,
# because we don't know where the library will end up.
# The user probably knows, but generally speaking automake
# doesn't -- and in fact configure could decide
# dynamically between two different locations.
$val = '';
}
else
{
$val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
$val .= $instsubdirs{$onelib}{$rcond}
if defined $instsubdirs{$onelib}{$rcond};
}
if ($rcond->true)
{
# If $rcond is true there is only one condition and
# there is no point defining an helper variable.
$rpath = $val;
}
else
{
define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
}
}
# If the resulting library lies in a subdirectory,
# make sure this directory will exist.
my $dirstamp = require_build_directory_maybe ($onelib);
# Remember to cleanup .libs/ in this directory.
my $dirname = dirname $onelib;
$libtool_clean_directories{$dirname} = 1;
$output_rules .= file_contents ('ltlibrary',
$where,
LTLIBRARY => $onelib,
XLTLIBRARY => $xlib,
RPATH => $rpath,
XLINK => $xlink,
VERBOSE => $vlink,
DIRSTAMP => $dirstamp);
if ($seen_libobjs)
{
if (var ($xlib . '_LIBADD'))
{
check_libobjs_sources ($xlib, $xlib . '_LIBADD');
}
}
if (! $seen_ar)
{
msg ('extra-portability', $where,
"'$onelib': linking libtool libraries using a non-POSIX\n"
. "archiver requires 'AM_PROG_AR' in '$configure_ac'")
}
}
}
# See if any _SOURCES variable were misspelled.
sub check_typos ()
{
# It is ok if the user sets this particular variable.
set_seen 'AM_LDFLAGS';
foreach my $primary ('SOURCES', 'LIBADD', 'LDADD', 'LDFLAGS', 'DEPENDENCIES')
{
foreach my $var (variables $primary)
{
my $varname = $var->name;
# A configure variable is always legitimate.
next if exists $configure_vars{$varname};
for my $cond ($var->conditions->conds)
{
$varname =~ /^(?:EXTRA_)?(?:nobase_)?(?:dist_|nodist_)?(.*)_[[:alnum:]]+$/;
msg_var ('syntax', $var, "variable '$varname' is defined but no"
. " program or\nlibrary has '$1' as canonical name"
. " (possible typo)")
unless $var->rdef ($cond)->seen;
}
}
}
}
sub handle_scripts ()
{
# NOTE we no longer automatically clean SCRIPTS, because it is
# useful to sometimes distribute scripts verbatim. This happens
# e.g. in Automake itself.
am_install_var ('-candist', 'scripts', 'SCRIPTS',
'bin', 'sbin', 'libexec', 'pkglibexec', 'pkgdata',
'noinst', 'check');
}
## ------------------------ ##
## Handling Texinfo files. ##
## ------------------------ ##
# ($OUTFILE, $VFILE)
# scan_texinfo_file ($FILENAME)
# -----------------------------
# $OUTFILE - name of the info file produced by $FILENAME.
# $VFILE - name of the version.texi file used (undef if none).
sub scan_texinfo_file
{
my ($filename) = @_;
my $texi = new Automake::XFile "< $filename";
verb "reading $filename";
my ($outfile, $vfile);
while ($_ = $texi->getline)
{
if (/^\@setfilename +(\S+)/)
{
# Honor only the first @setfilename. (It's possible to have
# more occurrences later if the manual shows examples of how
# to use @setfilename...)
next if $outfile;
$outfile = $1;
if (index ($outfile, '.') < 0)
{
msg 'obsolete', "$filename:$.",
"use of suffix-less info files is discouraged"
}
elsif ($outfile !~ /\.info$/)
{
error ("$filename:$.",
"output '$outfile' has unrecognized extension");
return;
}
}
# A "version.texi" file is actually any file whose name matches
# "vers*.texi".
elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
{
$vfile = $1;
}
}
if (! $outfile)
{
err_am "'$filename' missing \@setfilename";
return;
}
return ($outfile, $vfile);
}
# ($DIRSTAMP, @CLEAN_FILES)
# output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
# ------------------------------------------------------------------
# SOURCE - the source Texinfo file
# DEST - the destination Info file
# INSRC - whether DEST should be built in the source tree
# DEPENDENCIES - known dependencies
sub output_texinfo_build_rules
{
my ($source, $dest, $insrc, @deps) = @_;
# Split 'a.texi' into 'a' and '.texi'.
my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
$ssfx ||= "";
$dsfx ||= "";
# We can output two kinds of rules: the "generic" rules use Make
# suffix rules and are appropriate when $source and $dest do not lie
# in a sub-directory; the "specific" rules are needed in the other
# case.
#
# The former are output only once (this is not really apparent here,
# but just remember that some logic deeper in Automake will not
# output the same rule twice); while the later need to be output for
# each Texinfo source.
my $generic;
my $makeinfoflags;
my $sdir = dirname $source;
if ($sdir eq '.' && dirname ($dest) eq '.')
{
$generic = 1;
$makeinfoflags = '-I $(srcdir)';
}
else
{
$generic = 0;
$makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
}
# A directory can contain two kinds of info files: some built in the
# source tree, and some built in the build tree. The rules are
# different in each case. However we cannot output two different
# set of generic rules. Because in-source builds are more usual, we
# use generic rules in this case and fall back to "specific" rules
# for build-dir builds. (It should not be a problem to invert this
# if needed.)
$generic = 0 unless $insrc;
# We cannot use a suffix rule to build info files with an empty
# extension. Otherwise we would output a single suffix inference
# rule, with separate dependencies, as in
#
# .texi:
# $(MAKEINFO) ...
# foo.info: foo.texi
#
# which confuse Solaris make. (See the Autoconf manual for
# details.) Therefore we use a specific rule in this case. This
# applies to info files only (dvi and pdf files always have an
# extension).
my $generic_info = ($generic && $dsfx) ? 1 : 0;
# If the resulting file lies in a subdirectory,
# make sure this directory will exist.
my $dirstamp = require_build_directory_maybe ($dest);
my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
$output_rules .= file_contents ('texibuild',
new Automake::Location,
AM_V_MAKEINFO => verbose_flag('MAKEINFO'),
AM_V_TEXI2DVI => verbose_flag('TEXI2DVI'),
AM_V_TEXI2PDF => verbose_flag('TEXI2PDF'),
DEPS => "@deps",
DEST_PREFIX => $dpfx,
DEST_INFO_PREFIX => $dipfx,
DEST_SUFFIX => $dsfx,
DIRSTAMP => $dirstamp,
GENERIC => $generic,
GENERIC_INFO => $generic_info,
INSRC => $insrc,
MAKEINFOFLAGS => $makeinfoflags,
SILENT => silent_flag(),
SOURCE => ($generic
? '$<' : $source),
SOURCE_INFO => ($generic_info
? '$<' : $source),
SOURCE_REAL => $source,
SOURCE_SUFFIX => $ssfx,
TEXIQUIET => verbose_flag('texinfo'),
TEXIDEVNULL => verbose_flag('texidevnull'),
);
return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
}
# ($MOSTLYCLEAN, $TEXICLEAN, $MAINTCLEAN)
# handle_texinfo_helper ($info_texinfos)
# --------------------------------------
# Handle all Texinfo source; helper for 'handle_texinfo'.
sub handle_texinfo_helper
{
my ($info_texinfos) = @_;
my (@infobase, @info_deps_list, @texi_deps);
my %versions;
my $done = 0;
my (@mostly_cleans, @texi_cleans, @maint_cleans) = ('', '', '');
# Build a regex matching user-cleaned files.
my $d = var 'DISTCLEANFILES';
my $c = var 'CLEANFILES';
my @f = ();
push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
@f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
foreach my $texi
($info_texinfos->value_as_list_recursive (inner_expand => 1))
{
my $infobase = $texi;
if ($infobase =~ s/\.texi$//)
{
1; # Nothing more to do.
}
elsif ($infobase =~ s/\.(txi|texinfo)$//)
{
msg_var 'obsolete', $info_texinfos,
"suffix '.$1' for Texinfo files is discouraged;" .
" use '.texi' instead";
}
else
{
# FIXME: report line number.
err_am "texinfo file '$texi' has unrecognized extension";
next;
}
push @infobase, $infobase;
# If 'version.texi' is referenced by input file, then include
# automatic versioning capability.
my ($out_file, $vtexi) =
scan_texinfo_file ("$relative_dir/$texi")
or next;
# Directory of auxiliary files and build by-products used by texi2dvi
# and texi2pdf.
push @mostly_cleans, "$infobase.t2d";
push @mostly_cleans, "$infobase.t2p";
# If the Texinfo source is in a subdirectory, create the
# resulting info in this subdirectory. If it is in the current
# directory, try hard to not prefix "./" because it breaks the
# generic rules.
my $outdir = dirname ($texi) . '/';
$outdir = "" if $outdir eq './';
$out_file = $outdir . $out_file;
# Until Automake 1.6.3, .info files were built in the
# source tree. This was an obstacle to the support of
# non-distributed .info files, and non-distributed .texi
# files.
#
# * Non-distributed .texi files is important in some packages
# where .texi files are built at make time, probably using
# other binaries built in the package itself, maybe using
# tools or information found on the build host. Because
# these files are not distributed they are always rebuilt
# at make time; they should therefore not lie in the source
# directory. One plan was to support this using
# nodist_info_TEXINFOS or something similar. (Doing this
# requires some sanity checks. For instance Automake should
# not allow:
# dist_info_TEXINFOS = foo.texi
# nodist_foo_TEXINFOS = included.texi
# because a distributed file should never depend on a
# non-distributed file.)
#
# * If .texi files are not distributed, then .info files should
# not be distributed either. There are also cases where one
# wants to distribute .texi files, but does not want to
# distribute the .info files. For instance the Texinfo package
# distributes the tool used to build these files; it would
# be a waste of space to distribute them. It's not clear
# which syntax we should use to indicate that .info files should
# not be distributed. Akim Demaille suggested that eventually
# we switch to a new syntax:
# | Maybe we should take some inspiration from what's already
# | done in the rest of Automake. Maybe there is too much
# | syntactic sugar here, and you want
# | nodist_INFO = bar.info
# | dist_bar_info_SOURCES = bar.texi
# | bar_texi_DEPENDENCIES = foo.texi
# | with a bit of magic to have bar.info represent the whole
# | bar*info set. That's a lot more verbose that the current
# | situation, but it is # not new, hence the user has less
# | to learn.
# |
# | But there is still too much room for meaningless specs:
# | nodist_INFO = bar.info
# | dist_bar_info_SOURCES = bar.texi
# | dist_PS = bar.ps something-written-by-hand.ps
# | nodist_bar_ps_SOURCES = bar.texi
# | bar_texi_DEPENDENCIES = foo.texi
# | here bar.texi is dist_ in line 2, and nodist_ in 4.
#
# Back to the point, it should be clear that in order to support
# non-distributed .info files, we need to build them in the
# build tree, not in the source tree (non-distributed .texi
# files are less of a problem, because we do not output build
# rules for them). In Automake 1.7 .info build rules have been
# largely cleaned up so that .info files get always build in the
# build tree, even when distributed. The idea was that
# (1) if during a VPATH build the .info file was found to be
# absent or out-of-date (in the source tree or in the
# build tree), Make would rebuild it in the build tree.
# If an up-to-date source-tree of the .info file existed,
# make would not rebuild it in the build tree.
# (2) having two copies of .info files, one in the source tree
# and one (newer) in the build tree is not a problem
# because 'make dist' always pick files in the build tree
# first.
# However it turned out the be a bad idea for several reasons:
# * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
# like GNU Make on point (1) above. These implementations
# of Make would always rebuild .info files in the build
# tree, even if such files were up to date in the source
# tree. Consequently, it was impossible to perform a VPATH
# build of a package containing Texinfo files using these
# Make implementations.
# (Refer to the Autoconf Manual, section "Limitation of
# Make", paragraph "VPATH", item "target lookup", for
# an account of the differences between these
# implementations.)
# * The GNU Coding Standards require these files to be built
# in the source-tree (when they are distributed, that is).
# * Keeping a fresher copy of distributed files in the
# build tree can be annoying during development because
# - if the files is kept under CVS, you really want it
# to be updated in the source tree
# - it is confusing that 'make distclean' does not erase
# all files in the build tree.
#
# Consequently, starting with Automake 1.8, .info files are
# built in the source tree again. Because we still plan to
# support non-distributed .info files at some point, we
# have a single variable ($INSRC) that controls whether
# the current .info file must be built in the source tree
# or in the build tree. Actually this variable is switched
# off in two cases:
# (1) For '.info' files that appear to be cleaned; this is for
# backward compatibility with package such as Texinfo,
# which do things like
# info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
# DISTCLEANFILES = texinfo texinfo-* info*.info*
# # Do not create info files for distribution.
# dist-info:
# in order not to distribute .info files.
# (2) When the undocumented option 'info-in-builddir' is given.
# This is done to allow the developers of GCC, GDB, GNU
# binutils and the GNU bfd library to force the '.info' files
# to be generated in the builddir rather than the srcdir, as
# was once done when the (now removed) 'cygnus' option was
# given. See automake bug#11034 for more discussion.
my $insrc = 1;
my $soutdir = '$(srcdir)/' . $outdir;
if (option 'info-in-builddir')
{
$insrc = 0;
}
elsif ($out_file =~ $user_cleaned_files)
{
$insrc = 0;
msg 'obsolete', "$am_file.am", < $texi,
VTI => $vti,
STAMPVTI => "${soutdir}stamp-$vti",
VTEXI => "$soutdir$vtexi",
MDDIR => $conf_dir,
DIRSTAMP => $dirstamp);
}
}
# Handle location of texinfo.tex.
my $need_texi_file = 0;
my $texinfodir;
if (var ('TEXINFO_TEX'))
{
# The user defined TEXINFO_TEX so assume he knows what he is
# doing.
$texinfodir = ('$(srcdir)/'
. dirname (variable_value ('TEXINFO_TEX')));
}
elsif ($config_aux_dir_set_in_configure_ac)
{
$texinfodir = $am_config_aux_dir;
define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
$need_texi_file = 2; # so that we require_conf_file later
}
else
{
$texinfodir = '$(srcdir)';
$need_texi_file = 1;
}
define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
push (@dist_targets, 'dist-info');
if (! option 'no-installinfo')
{
# Make sure documentation is made and installed first. Use
# $(INFO_DEPS), not 'info', because otherwise recursive makes
# get run twice during "make all".
unshift (@all, '$(INFO_DEPS)');
}
define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
# This next isn't strictly needed now -- the places that look here
# could easily be changed to look in info_TEXINFOS. But this is
# probably better, in case noinst_TEXINFOS is ever supported.
define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
# Do some error checking. Note that this file is not required
# when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
# up above.
if ($need_texi_file && ! option 'no-texinfo.tex')
{
if ($need_texi_file > 1)
{
require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
'texinfo.tex');
}
else
{
require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
'texinfo.tex');
}
}
return (makefile_wrap ("", "\t ", @mostly_cleans),
makefile_wrap ("", "\t ", @texi_cleans),
makefile_wrap ("", "\t ", @maint_cleans));
}
sub handle_texinfo ()
{
reject_var 'TEXINFOS', "'TEXINFOS' is an anachronism; use 'info_TEXINFOS'";
# FIXME: I think this is an obsolete future feature name.
reject_var 'html_TEXINFOS', "HTML generation not yet supported";
my $info_texinfos = var ('info_TEXINFOS');
my ($mostlyclean, $clean, $maintclean) = ('', '', '');
if ($info_texinfos)
{
define_verbose_texinfo;
($mostlyclean, $clean, $maintclean) = handle_texinfo_helper ($info_texinfos);
chomp $mostlyclean;
chomp $clean;
chomp $maintclean;
}
$output_rules .= file_contents ('texinfos',
new Automake::Location,
AM_V_DVIPS => verbose_flag('DVIPS'),
MOSTLYCLEAN => $mostlyclean,
TEXICLEAN => $clean,
MAINTCLEAN => $maintclean,
'LOCAL-TEXIS' => !!$info_texinfos,
TEXIQUIET => verbose_flag('texinfo'));
}
sub handle_man_pages ()
{
reject_var 'MANS', "'MANS' is an anachronism; use 'man_MANS'";
# Find all the sections in use. We do this by first looking for
# "standard" sections, and then looking for any additional
# sections used in man_MANS.
my (%sections, %notrans_sections, %trans_sections,
%notrans_vars, %trans_vars, %notrans_sect_vars, %trans_sect_vars);
# We handle nodist_ for uniformity. man pages aren't distributed
# by default so it isn't actually very important.
foreach my $npfx ('', 'notrans_')
{
foreach my $pfx ('', 'dist_', 'nodist_')
{
# Add more sections as needed.
foreach my $section ('0'..'9', 'n', 'l')
{
my $varname = $npfx . $pfx . 'man' . $section . '_MANS';
if (var ($varname))
{
$sections{$section} = 1;
$varname = '$(' . $varname . ')';
if ($npfx eq 'notrans_')
{
$notrans_sections{$section} = 1;
$notrans_sect_vars{$varname} = 1;
}
else
{
$trans_sections{$section} = 1;
$trans_sect_vars{$varname} = 1;
}
push_dist_common ($varname)
if $pfx eq 'dist_';
}
}
my $varname = $npfx . $pfx . 'man_MANS';
my $var = var ($varname);
if ($var)
{
foreach ($var->value_as_list_recursive)
{
# A page like 'foo.1c' goes into man1dir.
if (/\.([0-9a-z])([a-z]*)$/)
{
$sections{$1} = 1;
if ($npfx eq 'notrans_')
{
$notrans_sections{$1} = 1;
}
else
{
$trans_sections{$1} = 1;
}
}
}
$varname = '$(' . $varname . ')';
if ($npfx eq 'notrans_')
{
$notrans_vars{$varname} = 1;
}
else
{
$trans_vars{$varname} = 1;
}
push_dist_common ($varname)
if $pfx eq 'dist_';
}
}
}
return unless %sections;
my @unsorted_deps;
# Build section independent variables.
my $have_notrans = %notrans_vars;
my @notrans_list = sort keys %notrans_vars;
my $have_trans = %trans_vars;
my @trans_list = sort keys %trans_vars;
# Now for each section, generate an install and uninstall rule.
# Sort sections so output is deterministic.
foreach my $section (sort keys %sections)
{
# Build section dependent variables.
my $notrans_mans = $have_notrans || exists $notrans_sections{$section};
my $trans_mans = $have_trans || exists $trans_sections{$section};
my (%notrans_this_sect, %trans_this_sect);
my $expr = 'man' . $section . '_MANS';
foreach my $varname (keys %notrans_sect_vars)
{
if ($varname =~ /$expr/)
{
$notrans_this_sect{$varname} = 1;
}
}
foreach my $varname (keys %trans_sect_vars)
{
if ($varname =~ /$expr/)
{
$trans_this_sect{$varname} = 1;
}
}
my @notrans_sect_list = sort keys %notrans_this_sect;
my @trans_sect_list = sort keys %trans_this_sect;
@unsorted_deps = (keys %notrans_vars, keys %trans_vars,
keys %notrans_this_sect, keys %trans_this_sect);
my @deps = sort @unsorted_deps;
$output_rules .= file_contents ('mans',
new Automake::Location,
SECTION => $section,
DEPS => "@deps",
NOTRANS_MANS => $notrans_mans,
NOTRANS_SECT_LIST => "@notrans_sect_list",
HAVE_NOTRANS => $have_notrans,
NOTRANS_LIST => "@notrans_list",
TRANS_MANS => $trans_mans,
TRANS_SECT_LIST => "@trans_sect_list",
HAVE_TRANS => $have_trans,
TRANS_LIST => "@trans_list");
}
@unsorted_deps = (keys %notrans_vars, keys %trans_vars,
keys %notrans_sect_vars, keys %trans_sect_vars);
my @mans = sort @unsorted_deps;
$output_vars .= file_contents ('mans-vars',
new Automake::Location,
MANS => "@mans");
push (@all, '$(MANS)')
unless option 'no-installman';
}
sub handle_data ()
{
am_install_var ('-noextra', '-candist', 'data', 'DATA',
'data', 'dataroot', 'doc', 'dvi', 'html', 'pdf',
'ps', 'sysconf', 'sharedstate', 'localstate',
'pkgdata', 'lisp', 'noinst', 'check');
}
sub handle_tags ()
{
my @config;
foreach my $spec (@config_headers)
{
my ($out, @ins) = split_config_file_spec ($spec);
foreach my $in (@ins)
{
# If the config header source is in this directory,
# require it.
push @config, basename ($in)
if $relative_dir eq dirname ($in);
}
}
define_variable ('am__tagged_files',
'$(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)'
. "@config", INTERNAL);
if (rvar('am__tagged_files')->value_as_list_recursive
|| var ('ETAGS_ARGS') || var ('SUBDIRS'))
{
$output_rules .= file_contents ('tags', new Automake::Location);
set_seen 'TAGS_DEPENDENCIES';
}
else
{
reject_var ('TAGS_DEPENDENCIES',
"it doesn't make sense to define 'TAGS_DEPENDENCIES'"
. " without\nsources or 'ETAGS_ARGS'");
# Every Makefile must define some sort of TAGS rule.
# Otherwise, it would be possible for a top-level "make TAGS"
# to fail because some subdirectory failed. Ditto ctags and
# cscope.
$output_rules .=
"tags TAGS:\n\n" .
"ctags CTAGS:\n\n" .
"cscope cscopelist:\n\n";
}
}
# user_phony_rule ($NAME)
# -----------------------
# Return false if rule $NAME does not exist. Otherwise,
# declare it as phony, complete its definition (in case it is
# conditional), and return its Automake::Rule instance.
sub user_phony_rule
{
my ($name) = @_;
my $rule = rule $name;
if ($rule)
{
depend ('.PHONY', $name);
# Define $NAME in all condition where it is not already defined,
# so that it is always OK to depend on $NAME.
for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
{
Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
$c, INTERNAL);
$output_rules .= $c->subst_string . "$name:\n";
}
}
return $rule;
}
# Handle 'dist' target.
sub handle_dist ()
{
# Substitutions for distdir.am
my %transform;
# Define DIST_SUBDIRS. This must always be done, regardless of the
# no-dist setting: target like 'distclean' or 'maintainer-clean' use it.
my $subdirs = var ('SUBDIRS');
if ($subdirs)
{
# If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
# to all possible directories, and use it. If DIST_SUBDIRS is
# defined, just use it.
# Note that we check DIST_SUBDIRS first on purpose, so that
# we don't call has_conditional_contents for now reason.
# (In the past one project used so many conditional subdirectories
# that calling has_conditional_contents on SUBDIRS caused
# automake to grow to 150Mb -- this should not happen with
# the current implementation of has_conditional_contents,
# but it's more efficient to avoid the call anyway.)
if (var ('DIST_SUBDIRS'))
{
}
elsif ($subdirs->has_conditional_contents)
{
define_pretty_variable
('DIST_SUBDIRS', TRUE, INTERNAL,
uniq ($subdirs->value_as_list_recursive));
}
else
{
# We always define this because that is what 'distclean'
# wants.
define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
'$(SUBDIRS)');
}
}
# The remaining definitions are only required when a dist target is used.
return if option 'no-dist';
# At least one of the archive formats must be enabled.
if ($relative_dir eq '.')
{
my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
$archive_defined ||=
grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip xz);
error (option 'no-dist-gzip',
"no-dist-gzip specified but no dist-* specified,\n"
. "at least one archive format must be enabled")
unless $archive_defined;
}
# Look for common files that should be included in distribution.
# If the aux dir is set, and it does not have a Makefile.am, then
# we check for these files there as well.
my $check_aux = 0;
if ($relative_dir eq '.'
&& $config_aux_dir_set_in_configure_ac)
{
if (! is_make_dir ($config_aux_dir))
{
$check_aux = 1;
}
}
foreach my $cfile (@common_files)
{
if (dir_has_case_matching_file ($relative_dir, $cfile)
# The file might be absent, but if it can be built it's ok.
|| rule $cfile)
{
push_dist_common ($cfile);
}
# Don't use 'elsif' here because a file might meaningfully
# appear in both directories.
if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
{
push_dist_common ("$config_aux_dir/$cfile")
}
}
# We might copy elements from @configure_dist_common to
# @dist_common if we think we need to. If the file appears in our
# directory, we would have discovered it already, so we don't
# check that. But if the file is in a subdir without a Makefile,
# we want to distribute it here if we are doing '.'. Ugly!
# Also, in some corner cases, it's possible that the following code
# will cause the same file to appear in the $(DIST_COMMON) variables
# of two distinct Makefiles; but this is not a problem, since the
# 'distdir' target in 'lib/am/distdir.am' can deal with the same
# file being distributed multiple times.
# See also automake bug#9651.
if ($relative_dir eq '.')
{
foreach my $file (@configure_dist_common)
{
my $dir = dirname ($file);
push_dist_common ($file)
if ($dir eq '.' || ! is_make_dir ($dir));
}
@configure_dist_common = ();
}
# $(am__DIST_COMMON): files to be distributed automatically. Will be
# appended to $(DIST_COMMON) in the generated Makefile.
# Use 'sort' so that the expansion of $(DIST_COMMON) in the generated
# Makefile is deterministic, in face of m4 and/or perl randomizations
# (see automake bug#17908).
define_pretty_variable ('am__DIST_COMMON', TRUE, INTERNAL,
uniq (sort @dist_common));
# Now that we've processed @dist_common, disallow further attempts
# to modify it.
$handle_dist_run = 1;
$transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
$transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
# If the target 'dist-hook' exists, make sure it is run. This
# allows users to do random weird things to the distribution
# before it is packaged up.
push (@dist_targets, 'dist-hook')
if user_phony_rule 'dist-hook';
$transform{'DIST-TARGETS'} = join (' ', @dist_targets);
my $flm = option ('filename-length-max');
my $filename_filter = $flm ? '.' x $flm->[1] : '';
$output_rules .= file_contents ('distdir',
new Automake::Location,
%transform,
FILENAME_FILTER => $filename_filter);
}
# check_directory ($NAME, $WHERE [, $RELATIVE_DIR = "."])
# -------------------------------------------------------
# Ensure $NAME is a directory (in $RELATIVE_DIR), and that it uses a sane
# name. Use $WHERE as a location in the diagnostic, if any.
sub check_directory
{
my ($dir, $where, $reldir) = @_;
$reldir = '.' unless defined $reldir;
error $where, "required directory $reldir/$dir does not exist"
unless -d "$reldir/$dir";
# If an 'obj/' directory exists, BSD make will enter it before
# reading 'Makefile'. Hence the 'Makefile' in the current directory
# will not be read.
#
# % cat Makefile
# all:
# echo Hello
# % cat obj/Makefile
# all:
# echo World
# % make # GNU make
# echo Hello
# Hello
# % pmake # BSD make
# echo World
# World
msg ('portability', $where,
"naming a subdirectory 'obj' causes troubles with BSD make")
if $dir eq 'obj';
# 'aux' is probably the most important of the following forbidden name,
# since it's tempting to use it as an AC_CONFIG_AUX_DIR.
msg ('portability', $where,
"name '$dir' is reserved on W32 and DOS platforms")
if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
}
# check_directories_in_var ($VARIABLE)
# ------------------------------------
# Recursively check all items in variables $VARIABLE as directories
sub check_directories_in_var
{
my ($var) = @_;
$var->traverse_recursively
(sub
{
my ($var, $val, $cond, $full_cond) = @_;
check_directory ($val, $var->rdef ($cond)->location, $relative_dir);
return ();
},
undef,
skip_ac_subst => 1);
}
sub handle_subdirs ()
{
my $subdirs = var ('SUBDIRS');
return
unless $subdirs;
check_directories_in_var $subdirs;
my $dsubdirs = var ('DIST_SUBDIRS');
check_directories_in_var $dsubdirs
if $dsubdirs;
$output_rules .= file_contents ('subdirs', new Automake::Location);
rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
}
# ($REGEN, @DEPENDENCIES)
# scan_aclocal_m4
# ---------------
# If aclocal.m4 creation is automated, return the list of its dependencies.
sub scan_aclocal_m4 ()
{
my $regen_aclocal = 0;
set_seen 'CONFIG_STATUS_DEPENDENCIES';
set_seen 'CONFIGURE_DEPENDENCIES';
if (-f 'aclocal.m4')
{
define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
my $aclocal = new Automake::XFile "< aclocal.m4";
my $line = $aclocal->getline;
$regen_aclocal = $line =~ 'generated automatically by aclocal';
}
my @ac_deps = ();
if (set_seen ('ACLOCAL_M4_SOURCES'))
{
push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
"'ACLOCAL_M4_SOURCES' is obsolete.\n"
. "It should be safe to simply remove it");
}
# Note that it might be possible that aclocal.m4 doesn't exist but
# should be auto-generated. This case probably isn't very
# important.
return ($regen_aclocal, @ac_deps);
}
# Helper function for 'substitute_ac_subst_variables'.
sub substitute_ac_subst_variables_worker
{
my ($token) = @_;
return "\@$token\@" if var $token;
return "\${$token\}";
}
# substitute_ac_subst_variables ($TEXT)
# -------------------------------------
# Replace any occurrence of ${FOO} in $TEXT by @FOO@ if FOO is an AC_SUBST
# variable.
sub substitute_ac_subst_variables
{
my ($text) = @_;
$text =~ s/\$[{]([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker ($1)/ge;
return $text;
}
# @DEPENDENCIES
# prepend_srcdir (@INPUTS)
# ------------------------
# Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
# if an input file has a directory part the same as the current
# directory, then the directory part is simply replaced by $(srcdir).
# But if the directory part is different, then $(top_srcdir) is
# prepended.
sub prepend_srcdir
{
my (@inputs) = @_;
my @newinputs;
foreach my $single (@inputs)
{
if (dirname ($single) eq $relative_dir)
{
push (@newinputs, '$(srcdir)/' . basename ($single));
}
else
{
push (@newinputs, '$(top_srcdir)/' . $single);
}
}
return @newinputs;
}
# @DEPENDENCIES
# rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
# ---------------------------------------------------
# Compute a list of dependencies appropriate for the rebuild
# rule of
# AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
# Also distribute $INPUTs which are not built by another AC_CONFIG_FOOs.
sub rewrite_inputs_into_dependencies
{
my ($file, @inputs) = @_;
my @res = ();
for my $i (@inputs)
{
# We cannot create dependencies on shell variables.
next if (substitute_ac_subst_variables $i) =~ /\$/;
if (exists $ac_config_files_location{$i} && $i ne $file)
{
my $di = dirname $i;
if ($di eq $relative_dir)
{
$i = basename $i;
}
# In the top-level Makefile we do not use $(top_builddir), because
# we are already there, and since the targets are built without
# a $(top_builddir), it helps BSD Make to match them with
# dependencies.
elsif ($relative_dir ne '.')
{
$i = '$(top_builddir)/' . $i;
}
}
else
{
msg ('error', $ac_config_files_location{$file},
"required file '$i' not found")
unless $i =~ /\$/ || exists $output_files{$i} || -f $i;
($i) = prepend_srcdir ($i);
push_dist_common ($i);
}
push @res, $i;
}
return @res;
}
# handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
# -----------------------------------------------------------------
# Handle remaking and configure stuff.
# We need the name of the input file, to do proper remaking rules.
sub handle_configure
{
my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
prog_error 'empty @inputs'
unless @inputs;
my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
$makefile_in);
my $rel_makefile = basename $makefile;
my $colon_infile = ':' . join (':', @inputs);
$colon_infile = '' if $colon_infile eq ":$makefile.in";
my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
@configure_deps, @aclocal_m4_deps,
'$(top_srcdir)/' . $configure_ac);
my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
@configuredeps);
my $automake_options = '--' . $strictness_name .
(global_option 'no-dependencies' ? ' --ignore-deps' : '');
$output_rules .= file_contents
('configure',
new Automake::Location,
MAKEFILE => $rel_makefile,
'MAKEFILE-DEPS' => "@rewritten",
'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
'MAKEFILE-IN' => $rel_makefile_in,
'HAVE-MAKEFILE-IN-DEPS' => (@include_stack > 0),
'MAKEFILE-IN-DEPS' => "@include_stack",
'MAKEFILE-AM' => $rel_makefile_am,
'AUTOMAKE-OPTIONS' => $automake_options,
'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
'REGEN-ACLOCAL-M4' => $regen_aclocal_m4,
VERBOSE => verbose_flag ('GEN'));
if ($relative_dir eq '.')
{
push_dist_common ('acconfig.h')
if -f 'acconfig.h';
}
# If we have a configure header, require it.
my $hdr_index = 0;
my @distclean_config;
foreach my $spec (@config_headers)
{
$hdr_index += 1;
# $CONFIG_H_PATH: config.h from top level.
my ($config_h_path, @ins) = split_config_file_spec ($spec);
my $config_h_dir = dirname ($config_h_path);
# If the header is in the current directory we want to build
# the header here. Otherwise, if we're at the topmost
# directory and the header's directory doesn't have a
# Makefile, then we also want to build the header.
if ($relative_dir eq $config_h_dir
|| ($relative_dir eq '.' && ! is_make_dir ($config_h_dir)))
{
my ($cn_sans_dir, $stamp_dir);
if ($relative_dir eq $config_h_dir)
{
$cn_sans_dir = basename ($config_h_path);
$stamp_dir = '';
}
else
{
$cn_sans_dir = $config_h_path;
if ($config_h_dir eq '.')
{
$stamp_dir = '';
}
else
{
$stamp_dir = $config_h_dir . '/';
}
}
# This will also distribute all inputs.
@ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
# Cannot define rebuild rules for filenames with shell variables.
next if (substitute_ac_subst_variables $config_h_path) =~ /\$/;
# Header defined in this directory.
my @files;
if (-f $config_h_path . '.top')
{
push (@files, "$cn_sans_dir.top");
}
if (-f $config_h_path . '.bot')
{
push (@files, "$cn_sans_dir.bot");
}
push_dist_common (@files);
# For now, acconfig.h can only appear in the top srcdir.
if (-f 'acconfig.h')
{
push (@files, '$(top_srcdir)/acconfig.h');
}
my $stamp = "${stamp_dir}stamp-h${hdr_index}";
$output_rules .=
file_contents ('remake-hdr',
new Automake::Location,
FILES => "@files",
'FIRST-HDR' => ($hdr_index == 1),
CONFIG_H => $cn_sans_dir,
CONFIG_HIN => $ins[0],
CONFIG_H_DEPS => "@ins",
CONFIG_H_PATH => $config_h_path,
STAMP => "$stamp");
push @distclean_config, $cn_sans_dir, $stamp;
}
}
$output_rules .= file_contents ('clean-hdr',
new Automake::Location,
FILES => "@distclean_config")
if @distclean_config;
# Distribute and define mkinstalldirs only if it is already present
# in the package, for backward compatibility (some people may still
# use $(mkinstalldirs)).
# TODO: start warning about this in Automake 1.14, and have
# TODO: Automake 2.0 drop it (and the mkinstalldirs script
# TODO: as well).
my $mkidpath = "$config_aux_dir/mkinstalldirs";
if (-f $mkidpath)
{
# Use require_file so that any existing script gets updated
# by --force-missing.
require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
define_variable ('mkinstalldirs',
"\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
}
else
{
# Use $(install_sh), not $(MKDIR_P) because the latter requires
# at least one argument, and $(mkinstalldirs) used to work
# even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
}
reject_var ('CONFIG_HEADER',
"'CONFIG_HEADER' is an anachronism; now determined "
. "automatically\nfrom '$configure_ac'");
my @config_h;
foreach my $spec (@config_headers)
{
my ($out, @ins) = split_config_file_spec ($spec);
# Generate CONFIG_HEADER define.
if ($relative_dir eq dirname ($out))
{
push @config_h, basename ($out);
}
else
{
push @config_h, "\$(top_builddir)/$out";
}
}
define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
if @config_h;
# Now look for other files in this directory which must be remade
# by config.status, and generate rules for them.
my @actual_other_files = ();
# These get cleaned only in a VPATH build.
my @actual_other_vpath_files = ();
foreach my $lfile (@other_input_files)
{
my $file;
my @inputs;
if ($lfile =~ /^([^:]*):(.*)$/)
{
# This is the ":" syntax of AC_OUTPUT.
$file = $1;
@inputs = split (':', $2);
}
else
{
# Normal usage.
$file = $lfile;
@inputs = $file . '.in';
}
# Automake files should not be stored in here, but in %MAKE_LIST.
prog_error ("$lfile in \@other_input_files\n"
. "\@other_input_files = (@other_input_files)")
if -f $file . '.am';
my $local = basename ($file);
# We skip files that aren't in this directory. However, if
# the file's directory does not have a Makefile, and we are
# currently doing '.', then we create a rule to rebuild the
# file in the subdir.
my $fd = dirname ($file);
if ($fd ne $relative_dir)
{
if ($relative_dir eq '.' && ! is_make_dir ($fd))
{
$local = $file;
}
else
{
next;
}
}
my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
# Cannot output rules for shell variables.
next if (substitute_ac_subst_variables $local) =~ /\$/;
my $condstr = '';
my $cond = $ac_config_files_condition{$lfile};
if (defined $cond)
{
$condstr = $cond->subst_string;
Automake::Rule::define ($local, $configure_ac, RULE_AUTOMAKE, $cond,
$ac_config_files_location{$file});
}
$output_rules .= ($condstr . $local . ': '
. '$(top_builddir)/config.status '
. "@rewritten_inputs\n"
. $condstr . "\t"
. 'cd $(top_builddir) && '
. '$(SHELL) ./config.status '
. ($relative_dir eq '.' ? '' : '$(subdir)/')
. '$@'
. "\n");
push (@actual_other_files, $local);
}
# For links we should clean destinations and distribute sources.
foreach my $spec (@config_links)
{
my ($link, $file) = split /:/, $spec;
# Some people do AC_CONFIG_LINKS($computed). We only handle
# the DEST:SRC form.
next unless $file;
my $where = $ac_config_files_location{$link};
# Skip destinations that contain shell variables.
if ((substitute_ac_subst_variables $link) !~ /\$/)
{
# We skip links that aren't in this directory. However, if
# the link's directory does not have a Makefile, and we are
# currently doing '.', then we add the link to CONFIG_CLEAN_FILES
# in '.'s Makefile.in.
my $local = basename ($link);
my $fd = dirname ($link);
if ($fd ne $relative_dir)
{
if ($relative_dir eq '.' && ! is_make_dir ($fd))
{
$local = $link;
}
else
{
$local = undef;
}
}
if ($file ne $link)
{
push @actual_other_files, $local if $local;
}
else
{
push @actual_other_vpath_files, $local if $local;
}
}
# Do not process sources that contain shell variables.
if ((substitute_ac_subst_variables $file) !~ /\$/)
{
my $fd = dirname ($file);
# We distribute files that are in this directory.
# At the top-level ('.') we also distribute files whose
# directory does not have a Makefile.
if (($fd eq $relative_dir)
|| ($relative_dir eq '.' && ! is_make_dir ($fd)))
{
# The following will distribute $file as a side-effect when
# it is appropriate (i.e., when $file is not already an output).
# We do not need the result, just the side-effect.
rewrite_inputs_into_dependencies ($link, $file);
}
}
}
# These files get removed by "make distclean".
define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
@actual_other_files);
define_pretty_variable ('CONFIG_CLEAN_VPATH_FILES', TRUE, INTERNAL,
@actual_other_vpath_files);
}
sub handle_headers ()
{
my @r = am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
'oldinclude', 'pkginclude',
'noinst', 'check');
foreach (@r)
{
next unless $_->[1] =~ /\..*$/;
saw_extension ($&);
}
}
sub handle_gettext ()
{
return if ! $seen_gettext || $relative_dir ne '.';
my $subdirs = var 'SUBDIRS';
if (! $subdirs)
{
err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
return;
}
# Perform some sanity checks to help users get the right setup.
# We disable these tests when po/ doesn't exist in order not to disallow
# unusual gettext setups.
#
# Bruno Haible:
# | The idea is:
# |
# | 1) If a package doesn't have a directory po/ at top level, it
# | will likely have multiple po/ directories in subpackages.
# |
# | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
# | is used without 'external'. It is also useful to warn for the
# | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
# | warnings apply only to the usual layout of packages, therefore
# | they should both be disabled if no po/ directory is found at
# | top level.
if (-d 'po')
{
my @subdirs = $subdirs->value_as_list_recursive;
msg_var ('syntax', $subdirs,
"AM_GNU_GETTEXT used but 'po' not in SUBDIRS")
if ! grep ($_ eq 'po', @subdirs);
# intl/ is not required when AM_GNU_GETTEXT is called with the
# 'external' option and AM_GNU_GETTEXT_INTL_SUBDIR is not called.
msg_var ('syntax', $subdirs,
"AM_GNU_GETTEXT used but 'intl' not in SUBDIRS")
if (! ($seen_gettext_external && ! $seen_gettext_intl)
&& ! grep ($_ eq 'intl', @subdirs));
# intl/ should not be used with AM_GNU_GETTEXT([external]), except
# if AM_GNU_GETTEXT_INTL_SUBDIR is called.
msg_var ('syntax', $subdirs,
"'intl' should not be in SUBDIRS when "
. "AM_GNU_GETTEXT([external]) is used")
if ($seen_gettext_external && ! $seen_gettext_intl
&& grep ($_ eq 'intl', @subdirs));
}
require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
}
# Emit makefile footer.
sub handle_footer ()
{
reject_rule ('.SUFFIXES',
"use variable 'SUFFIXES', not target '.SUFFIXES'");
# Note: AIX 4.1 /bin/make will fail if any suffix rule appears
# before .SUFFIXES. So we make sure that .SUFFIXES appears before
# anything else, by sticking it right after the default: target.
$output_header .= ".SUFFIXES:\n";
my $suffixes = var 'SUFFIXES';
my @suffixes = Automake::Rule::suffixes;
if (@suffixes || $suffixes)
{
# Make sure SUFFIXES has unique elements. Sort them to ensure
# the output remains consistent. However, $(SUFFIXES) is
# always at the start of the list, unsorted. This is done
# because make will choose rules depending on the ordering of
# suffixes, and this lets the user have some control. Push
# actual suffixes, and not $(SUFFIXES). Some versions of make
# do not like variable substitutions on the .SUFFIXES line.
my @user_suffixes = ($suffixes
? $suffixes->value_as_list_recursive : ());
my %suffixes = map { $_ => 1 } @suffixes;
delete @suffixes{@user_suffixes};
$output_header .= (".SUFFIXES: "
. join (' ', @user_suffixes, sort keys %suffixes)
. "\n");
}
$output_trailer .= file_contents ('footer', new Automake::Location);
}
# Generate 'make install' rules.
sub handle_install ()
{
$output_rules .= file_contents
('install',
new Automake::Location,
maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
? (" \$(BUILT_SOURCES)\n"
. "\t\$(MAKE) \$(AM_MAKEFLAGS)")
: ''),
'installdirs-local' => (user_phony_rule ('installdirs-local')
? ' installdirs-local' : ''),
am__installdirs => variable_value ('am__installdirs') || '');
}
# handle_all ($MAKEFILE)
#-----------------------
# Deal with 'all' and 'all-am'.
sub handle_all
{
my ($makefile) = @_;
# Output 'all-am'.
# Put this at the beginning for the sake of non-GNU makes. This
# is still wrong if these makes can run parallel jobs. But it is
# right enough.
unshift (@all, basename ($makefile));
foreach my $spec (@config_headers)
{
my ($out, @ins) = split_config_file_spec ($spec);
push (@all, basename ($out))
if dirname ($out) eq $relative_dir;
}
# Install 'all' hooks.
push (@all, "all-local")
if user_phony_rule "all-local";
pretty_print_rule ("all-am:", "\t\t", @all);
depend ('.PHONY', 'all-am', 'all');
# Output 'all'.
my @local_headers = ();
push @local_headers, '$(BUILT_SOURCES)'
if var ('BUILT_SOURCES');
foreach my $spec (@config_headers)
{
my ($out, @ins) = split_config_file_spec ($spec);
push @local_headers, basename ($out)
if dirname ($out) eq $relative_dir;
}
if (@local_headers)
{
# We need to make sure config.h is built before we recurse.
# We also want to make sure that built sources are built
# before any ordinary 'all' targets are run. We can't do this
# by changing the order of dependencies to the "all" because
# that breaks when using parallel makes. Instead we handle
# things explicitly.
$output_all .= ("all: @local_headers"
. "\n\t"
. '$(MAKE) $(AM_MAKEFLAGS) '
. (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
. "\n\n");
depend ('.MAKE', 'all');
}
else
{
$output_all .= "all: " . (var ('SUBDIRS')
? 'all-recursive' : 'all-am') . "\n\n";
}
}
# Generate helper targets for user-defined recursive targets, where needed.
sub handle_user_recursion ()
{
return unless @extra_recursive_targets;
define_pretty_variable ('am__extra_recursive_targets', TRUE, INTERNAL,
map { "$_-recursive" } @extra_recursive_targets);
my $aux = var ('SUBDIRS') ? 'recursive' : 'am';
foreach my $target (@extra_recursive_targets)
{
# This allows the default target's rules to be overridden in
# Makefile.am.
user_phony_rule ($target);
depend ("$target", "$target-$aux");
depend ("$target-am", "$target-local");
# Every user-defined recursive target 'foo' *must* have a valid
# associated 'foo-local' rule; we define it as an empty rule by
# default, so that the user can transparently extend it in his
# own Makefile.am.
pretty_print_rule ("$target-local:", '', '');
# $target-recursive might as well be undefined, so do not add
# it here; it's taken care of in subdirs.am anyway.
depend (".PHONY", "$target-am", "$target-local");
}
}
# Handle check merge target specially.
sub do_check_merge_target ()
{
# Include user-defined local form of target.
push @check_tests, 'check-local'
if user_phony_rule 'check-local';
# The check target must depend on the local equivalent of
# 'all', to ensure all the primary targets are built. Then it
# must build the local check rules.
$output_rules .= "check-am: all-am\n";
if (@check)
{
pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ", @check);
depend ('.MAKE', 'check-am');
}
if (@check_tests)
{
pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
@check_tests);
depend ('.MAKE', 'check-am');
}
depend '.PHONY', 'check', 'check-am';
# Handle recursion. We have to honor BUILT_SOURCES like for 'all:'.
$output_rules .= ("check: "
. (var ('BUILT_SOURCES')
? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
: '')
. (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
. "\n");
depend ('.MAKE', 'check')
if var ('BUILT_SOURCES');
}
# Handle all 'clean' targets.
sub handle_clean
{
my ($makefile) = @_;
# Clean the files listed in user variables if they exist.
$clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
if var ('MOSTLYCLEANFILES');
$clean_files{'$(CLEANFILES)'} = CLEAN
if var ('CLEANFILES');
$clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
if var ('DISTCLEANFILES');
$clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
if var ('MAINTAINERCLEANFILES');
# Built sources are automatically removed by maintainer-clean.
$clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
if var ('BUILT_SOURCES');
# Compute a list of "rm"s to run for each target.
my %rms = (MOSTLY_CLEAN, [],
CLEAN, [],
DIST_CLEAN, [],
MAINTAINER_CLEAN, []);
foreach my $file (keys %clean_files)
{
my $when = $clean_files{$file};
prog_error 'invalid entry in %clean_files'
unless exists $rms{$when};
my $rm = "rm -f $file";
# If file is a variable, make sure when don't call 'rm -f' without args.
$rm ="test -z \"$file\" || $rm"
if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
push @{$rms{$when}}, "\t-$rm\n";
}
$output_rules .= file_contents
('clean',
new Automake::Location,
MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
MAKEFILE => basename $makefile,
);
}
# Subroutine for handle_factored_dependencies() to let '.PHONY' and
# other '.TARGETS' be last. This is meant to be used as a comparison
# subroutine passed to the sort built-int.
sub target_cmp
{
return 0 if $a eq $b;
my $a1 = substr ($a, 0, 1);
my $b1 = substr ($b, 0, 1);
if ($a1 ne $b1)
{
return -1 if $b1 eq '.';
return 1 if $a1 eq '.';
}
return $a cmp $b;
}
# Handle everything related to gathered targets.
sub handle_factored_dependencies ()
{
# Reject bad hooks.
foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
'uninstall-exec-local', 'uninstall-exec-hook',
'uninstall-dvi-local',
'uninstall-html-local',
'uninstall-info-local',
'uninstall-pdf-local',
'uninstall-ps-local')
{
my $x = $utarg;
$x =~ s/-.*-/-/;
reject_rule ($utarg, "use '$x', not '$utarg'");
}
reject_rule ('install-local',
"use 'install-data-local' or 'install-exec-local', "
. "not 'install-local'");
reject_rule ('install-hook',
"use 'install-data-hook' or 'install-exec-hook', "
. "not 'install-hook'");
# Install the -local hooks.
foreach (keys %dependencies)
{
# Hooks are installed on the -am targets.
s/-am$// or next;
depend ("$_-am", "$_-local")
if user_phony_rule "$_-local";
}
# Install the -hook hooks.
# FIXME: Why not be as liberal as we are with -local hooks?
foreach ('install-exec', 'install-data', 'uninstall')
{
if (user_phony_rule "$_-hook")
{
depend ('.MAKE', "$_-am");
register_action("$_-am",
("\t\@\$(NORMAL_INSTALL)\n"
. "\t\$(MAKE) \$(AM_MAKEFLAGS) $_-hook"));
}
}
# All the required targets are phony.
depend ('.PHONY', keys %required_targets);
# Actually output gathered targets.
foreach (sort target_cmp keys %dependencies)
{
# If there is nothing about this guy, skip it.
next
unless (@{$dependencies{$_}}
|| $actions{$_}
|| $required_targets{$_});
# Define gathered targets in undefined conditions.
# FIXME: Right now we must handle .PHONY as an exception,
# because people write things like
# .PHONY: myphonytarget
# to append dependencies. This would not work if Automake
# refrained from defining its own .PHONY target as it does
# with other overridden targets.
# Likewise for '.MAKE' and '.PRECIOUS'.
my @undefined_conds = (TRUE,);
if ($_ ne '.PHONY' && $_ ne '.MAKE' && $_ ne '.PRECIOUS')
{
@undefined_conds =
Automake::Rule::define ($_, 'internal',
RULE_AUTOMAKE, TRUE, INTERNAL);
}
my @uniq_deps = uniq (sort @{$dependencies{$_}});
foreach my $cond (@undefined_conds)
{
my $condstr = $cond->subst_string;
pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
$output_rules .= $actions{$_} if defined $actions{$_};
$output_rules .= "\n";
}
}
}
sub handle_tests_dejagnu ()
{
push (@check_tests, 'check-DEJAGNU');
$output_rules .= file_contents ('dejagnu', new Automake::Location);
}
# handle_per_suffix_test ($TEST_SUFFIX, [%TRANSFORM])
#----------------------------------------------------
sub handle_per_suffix_test
{
my ($test_suffix, %transform) = @_;
my ($pfx, $generic, $am_exeext);
if ($test_suffix eq '')
{
$pfx = '';
$generic = 0;
$am_exeext = 'FALSE';
}
else
{
prog_error ("test suffix '$test_suffix' lacks leading dot")
unless $test_suffix =~ m/^\.(.*)/;
$pfx = uc ($1) . '_';
$generic = 1;
$am_exeext = exists $configure_vars{'EXEEXT'} ? 'am__EXEEXT'
: 'FALSE';
}
# The "test driver" program, deputed to handle tests protocol used by
# test scripts. By default, it's assumed that no protocol is used, so
# we fall back to the old behaviour, implemented by the 'test-driver'
# auxiliary script.
if (! var "${pfx}LOG_DRIVER")
{
require_conf_file ("parallel-tests", FOREIGN, 'test-driver');
define_variable ("${pfx}LOG_DRIVER",
"\$(SHELL) $am_config_aux_dir/test-driver",
INTERNAL);
}
my $driver = '$(' . $pfx . 'LOG_DRIVER)';
my $driver_flags = '$(AM_' . $pfx . 'LOG_DRIVER_FLAGS)'
. ' $(' . $pfx . 'LOG_DRIVER_FLAGS)';
my $compile = "${pfx}LOG_COMPILE";
define_variable ($compile,
'$(' . $pfx . 'LOG_COMPILER)'
. ' $(AM_' . $pfx . 'LOG_FLAGS)'
. ' $(' . $pfx . 'LOG_FLAGS)',
INTERNAL);
$output_rules .= file_contents ('check2', new Automake::Location,
GENERIC => $generic,
DRIVER => $driver,
DRIVER_FLAGS => $driver_flags,
COMPILE => '$(' . $compile . ')',
EXT => $test_suffix,
am__EXEEXT => $am_exeext,
%transform);
}
# is_valid_test_extension ($EXT)
# ------------------------------
# Return true if $EXT can appear in $(TEST_EXTENSIONS), return false
# otherwise.
sub is_valid_test_extension
{
my $ext = shift;
return 1
if ($ext =~ /^\.[a-zA-Z_][a-zA-Z0-9_]*$/);
return 1
if (exists $configure_vars{'EXEEXT'} && $ext eq subst ('EXEEXT'));
return 0;
}
sub handle_tests ()
{
if (option 'dejagnu')
{
handle_tests_dejagnu;
}
else
{
foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
{
reject_var ($c, "'$c' defined but 'dejagnu' not in "
. "'AUTOMAKE_OPTIONS'");
}
}
if (var ('TESTS'))
{
push (@check_tests, 'check-TESTS');
my $check_deps = "@check";
$output_rules .= file_contents ('check', new Automake::Location,
SERIAL_TESTS => !! option 'serial-tests',
CHECK_DEPS => $check_deps);
# Tests that are known programs should have $(EXEEXT) appended.
# For matching purposes, we need to adjust XFAIL_TESTS as well.
append_exeext { exists $known_programs{$_[0]} } 'TESTS';
append_exeext { exists $known_programs{$_[0]} } 'XFAIL_TESTS'
if (var ('XFAIL_TESTS'));
if (! option 'serial-tests')
{
define_variable ('TEST_SUITE_LOG', 'test-suite.log', INTERNAL);
my $suff = '.test';
my $at_exeext = '';
my $handle_exeext = exists $configure_vars{'EXEEXT'};
if ($handle_exeext)
{
$at_exeext = subst ('EXEEXT');
$suff = $at_exeext . ' ' . $suff;
}
if (! var 'TEST_EXTENSIONS')
{
define_variable ('TEST_EXTENSIONS', $suff, INTERNAL);
}
my $var = var 'TEST_EXTENSIONS';
# Currently, we are not able to deal with conditional contents
# in TEST_EXTENSIONS.
if ($var->has_conditional_contents)
{
msg_var 'unsupported', $var,
"'TEST_EXTENSIONS' cannot have conditional contents";
}
my @test_suffixes = $var->value_as_list_recursive;
if ((my @invalid_test_suffixes =
grep { !is_valid_test_extension $_ } @test_suffixes) > 0)
{
error $var->rdef (TRUE)->location,
"invalid test extensions: @invalid_test_suffixes";
}
@test_suffixes = grep { is_valid_test_extension $_ } @test_suffixes;
if ($handle_exeext)
{
unshift (@test_suffixes, $at_exeext)
unless $test_suffixes[0] eq $at_exeext;
}
unshift (@test_suffixes, '');
transform_variable_recursively
('TESTS', 'TEST_LOGS', 'am__testlogs', 1, INTERNAL,
sub {
my ($subvar, $val, $cond, $full_cond) = @_;
my $obj = $val;
return $obj
if $val =~ /^\@.*\@$/;
$obj =~ s/\$\(EXEEXT\)$//o;
if ($val =~ /(\$\((top_)?srcdir\))\//o)
{
msg ('error', $subvar->rdef ($cond)->location,
"using '$1' in TESTS is currently broken: '$val'");
}
foreach my $test_suffix (@test_suffixes)
{
next
if $test_suffix eq $at_exeext || $test_suffix eq '';
return substr ($obj, 0, length ($obj) - length ($test_suffix)) . '.log'
if substr ($obj, - length ($test_suffix)) eq $test_suffix;
}
my $base = $obj;
$obj .= '.log';
handle_per_suffix_test ('',
OBJ => $obj,
BASE => $base,
SOURCE => $val);
return $obj;
});
my $nhelper=1;
my $prev = 'TESTS';
my $post = '';
my $last_suffix = $test_suffixes[$#test_suffixes];
my $cur = '';
foreach my $test_suffix (@test_suffixes)
{
if ($test_suffix eq $last_suffix)
{
$cur = 'TEST_LOGS';
}
else
{
$cur = 'am__test_logs' . $nhelper;
}
define_variable ($cur,
'$(' . $prev . ':' . $test_suffix . $post . '=.log)', INTERNAL);
$post = '.log';
$prev = $cur;
$nhelper++;
if ($test_suffix ne $at_exeext && $test_suffix ne '')
{
handle_per_suffix_test ($test_suffix,
OBJ => '',
BASE => '$*',
SOURCE => '$<');
}
}
$clean_files{'$(TEST_LOGS)'} = MOSTLY_CLEAN;
$clean_files{'$(TEST_LOGS:.log=.trs)'} = MOSTLY_CLEAN;
$clean_files{'$(TEST_SUITE_LOG)'} = MOSTLY_CLEAN;
}
}
}
sub handle_emacs_lisp ()
{
my @elfiles = am_install_var ('-candist', 'lisp', 'LISP',
'lisp', 'noinst');
return if ! @elfiles;
define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
map { $_->[1] } @elfiles);
define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
'$(am__ELFILES:.el=.elc)');
# This one can be overridden by users.
define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
push @all, '$(ELCFILES)';
require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
'EMACS', 'lispdir');
}
sub handle_python ()
{
my @pyfiles = am_install_var ('-defaultdist', 'python', 'PYTHON',
'noinst');
return if ! @pyfiles;
require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
}
sub handle_java ()
{
my @sourcelist = am_install_var ('-candist',
'java', 'JAVA',
'noinst', 'check');
return if ! @sourcelist;
my @prefixes = am_primary_prefixes ('JAVA', 1,
'noinst', 'check');
my $dir;
my @java_sources = ();
foreach my $prefix (@prefixes)
{
(my $curs = $prefix) =~ s/^(?:nobase_)?(?:dist_|nodist_)?//;
next
if $curs eq 'EXTRA';
push @java_sources, '$(' . $prefix . '_JAVA' . ')';
if (defined $dir)
{
err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
unless $curs eq $dir;
}
$dir = $curs;
}
define_pretty_variable ('am__java_sources', TRUE, INTERNAL,
"@java_sources");
if ($dir eq 'check')
{
push (@check, "class$dir.stamp");
}
else
{
push (@all, "class$dir.stamp");
}
}
sub handle_minor_options ()
{
if (option 'readme-alpha')
{
if ($relative_dir eq '.')
{
if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
{
msg ('error-gnits', $package_version_location,
"version '$package_version' doesn't follow " .
"Gnits standards");
}
if (defined $1 && -f 'README-alpha')
{
# This means we have an alpha release. See
# GNITS_VERSION_PATTERN for details.
push_dist_common ('README-alpha');
}
}
}
}
################################################################
# ($OUTPUT, @INPUTS)
# split_config_file_spec ($SPEC)
# ------------------------------
# Decode the Autoconf syntax for config files (files, headers, links
# etc.).
sub split_config_file_spec
{
my ($spec) = @_;
my ($output, @inputs) = split (/:/, $spec);
push @inputs, "$output.in"
unless @inputs;
return ($output, @inputs);
}
# $input
# locate_am (@POSSIBLE_SOURCES)
# -----------------------------
# AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
# This functions returns the first *.in file for which a *.am exists.
# It returns undef otherwise.
sub locate_am
{
my (@rest) = @_;
my $input;
foreach my $file (@rest)
{
if (($file =~ /^(.*)\.in$/) && -f "$1.am")
{
$input = $file;
last;
}
}
return $input;
}
my %make_list;
# scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
# --------------------------------------------------
# Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
# (or AC_OUTPUT).
sub scan_autoconf_config_files
{
my ($where, $config_files) = @_;
# Look at potential Makefile.am's.
foreach (split ' ', $config_files)
{
# Must skip empty string for Perl 4.
next if $_ eq "\\" || $_ eq '';
# Handle $local:$input syntax.
my ($local, @rest) = split (/:/);
@rest = ("$local.in",) unless @rest;
# Keep in sync with test 'conffile-leading-dot.sh'.
msg ('unsupported', $where,
"omit leading './' from config file names such as '$local';"
. "\nremake rules might be subtly broken otherwise")
if ($local =~ /^\.\//);
my $input = locate_am @rest;
if ($input)
{
# We have a file that automake should generate.
$make_list{$input} = join (':', ($local, @rest));
}
else
{
# We have a file that automake should cause to be
# rebuilt, but shouldn't generate itself.
push (@other_input_files, $_);
}
$ac_config_files_location{$local} = $where;
$ac_config_files_condition{$local} =
new Automake::Condition (@cond_stack)
if (@cond_stack);
}
}
sub scan_autoconf_traces
{
my ($filename) = @_;
# Macros to trace, with their minimal number of arguments.
#
# IMPORTANT: If you add a macro here, you should also add this macro
# ========= to Automake-preselection in autoconf/lib/autom4te.in.
my %traced = (
AC_CANONICAL_BUILD => 0,
AC_CANONICAL_HOST => 0,
AC_CANONICAL_TARGET => 0,
AC_CONFIG_AUX_DIR => 1,
AC_CONFIG_FILES => 1,
AC_CONFIG_HEADERS => 1,
AC_CONFIG_LIBOBJ_DIR => 1,
AC_CONFIG_LINKS => 1,
AC_FC_SRCEXT => 1,
AC_INIT => 0,
AC_LIBSOURCE => 1,
AC_REQUIRE_AUX_FILE => 1,
AC_SUBST_TRACE => 1,
AM_AUTOMAKE_VERSION => 1,
AM_PROG_MKDIR_P => 0,
AM_CONDITIONAL => 2,
AM_EXTRA_RECURSIVE_TARGETS => 1,
AM_GNU_GETTEXT => 0,
AM_GNU_GETTEXT_INTL_SUBDIR => 0,
AM_INIT_AUTOMAKE => 0,
AM_MAINTAINER_MODE => 0,
AM_PROG_AR => 0,
_AM_SUBST_NOTMAKE => 1,
_AM_COND_IF => 1,
_AM_COND_ELSE => 1,
_AM_COND_ENDIF => 1,
LT_SUPPORTED_TAG => 1,
_LT_AC_TAGCONFIG => 0,
m4_include => 1,
m4_sinclude => 1,
sinclude => 1,
);
my $traces = ($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ";
# Use a separator unlikely to be used, not ':', the default, which
# has a precise meaning for AC_CONFIG_FILES and so on.
$traces .= join (' ',
map { "--trace=$_" . ':\$f:\$l::\$d::\$n::\${::}%' }
(keys %traced));
my $tracefh = new Automake::XFile ("$traces $filename |");
verb "reading $traces";
@cond_stack = ();
my $where;
while ($_ = $tracefh->getline)
{
chomp;
my ($here, $depth, @args) = split (/::/);
$where = new Automake::Location $here;
my $macro = $args[0];
prog_error ("unrequested trace '$macro'")
unless exists $traced{$macro};
# Skip and diagnose malformed calls.
if ($#args < $traced{$macro})
{
msg ('syntax', $where, "not enough arguments for $macro");
next;
}
# Alphabetical ordering please.
if ($macro eq 'AC_CANONICAL_BUILD')
{
if ($seen_canonical <= AC_CANONICAL_BUILD)
{
$seen_canonical = AC_CANONICAL_BUILD;
}
}
elsif ($macro eq 'AC_CANONICAL_HOST')
{
if ($seen_canonical <= AC_CANONICAL_HOST)
{
$seen_canonical = AC_CANONICAL_HOST;
}
}
elsif ($macro eq 'AC_CANONICAL_TARGET')
{
$seen_canonical = AC_CANONICAL_TARGET;
}
elsif ($macro eq 'AC_CONFIG_AUX_DIR')
{
if ($seen_init_automake)
{
error ($where, "AC_CONFIG_AUX_DIR must be called before "
. "AM_INIT_AUTOMAKE ...", partial => 1);
error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
}
$config_aux_dir = $args[1];
$config_aux_dir_set_in_configure_ac = 1;
check_directory ($config_aux_dir, $where);
}
elsif ($macro eq 'AC_CONFIG_FILES')
{
# Look at potential Makefile.am's.
scan_autoconf_config_files ($where, $args[1]);
}
elsif ($macro eq 'AC_CONFIG_HEADERS')
{
foreach my $spec (split (' ', $args[1]))
{
my ($dest, @src) = split (':', $spec);
$ac_config_files_location{$dest} = $where;
push @config_headers, $spec;
}
}
elsif ($macro eq 'AC_CONFIG_LIBOBJ_DIR')
{
$config_libobj_dir = $args[1];
check_directory ($config_libobj_dir, $where);
}
elsif ($macro eq 'AC_CONFIG_LINKS')
{
foreach my $spec (split (' ', $args[1]))
{
my ($dest, $src) = split (':', $spec);
$ac_config_files_location{$dest} = $where;
push @config_links, $spec;
}
}
elsif ($macro eq 'AC_FC_SRCEXT')
{
my $suffix = $args[1];
# These flags are used as %SOURCEFLAG% in depend2.am,
# where the trailing space is important.
$sourceflags{'.' . $suffix} = '$(FCFLAGS_' . $suffix . ') '
if ($suffix eq 'f90' || $suffix eq 'f95' || $suffix eq 'f03' || $suffix eq 'f08');
}
elsif ($macro eq 'AC_INIT')
{
if (defined $args[2])
{
$package_version = $args[2];
$package_version_location = $where;
}
}
elsif ($macro eq 'AC_LIBSOURCE')
{
$libsources{$args[1]} = $here;
}
elsif ($macro eq 'AC_REQUIRE_AUX_FILE')
{
# Only remember the first time a file is required.
$required_aux_file{$args[1]} = $where
unless exists $required_aux_file{$args[1]};
}
elsif ($macro eq 'AC_SUBST_TRACE')
{
# Just check for alphanumeric in AC_SUBST_TRACE. If you do
# AC_SUBST(5), then too bad.
$configure_vars{$args[1]} = $where
if $args[1] =~ /^\w+$/;
}
elsif ($macro eq 'AM_AUTOMAKE_VERSION')
{
error ($where,
"version mismatch. This is Automake $VERSION,\n" .
"but the definition used by this AM_INIT_AUTOMAKE\n" .
"comes from Automake $args[1]. You should recreate\n" .
"aclocal.m4 with aclocal and run automake again.\n",
# $? = 63 is used to indicate version mismatch to missing.
exit_code => 63)
if $VERSION ne $args[1];
$seen_automake_version = 1;
}
elsif ($macro eq 'AM_PROG_MKDIR_P')
{
msg 'obsolete', $where, <<'EOF';
The 'AM_PROG_MKDIR_P' macro is deprecated, and its use is discouraged.
You should use the Autoconf-provided 'AC_PROG_MKDIR_P' macro instead,
and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.
EOF
}
elsif ($macro eq 'AM_CONDITIONAL')
{
$configure_cond{$args[1]} = $where;
}
elsif ($macro eq 'AM_EXTRA_RECURSIVE_TARGETS')
{
# Empty leading/trailing fields might be produced by split,
# hence the grep is really needed.
push @extra_recursive_targets,
grep (/./, (split /\s+/, $args[1]));
}
elsif ($macro eq 'AM_GNU_GETTEXT')
{
$seen_gettext = $where;
$ac_gettext_location = $where;
$seen_gettext_external = grep ($_ eq 'external', @args);
}
elsif ($macro eq 'AM_GNU_GETTEXT_INTL_SUBDIR')
{
$seen_gettext_intl = $where;
}
elsif ($macro eq 'AM_INIT_AUTOMAKE')
{
$seen_init_automake = $where;
if (defined $args[2])
{
msg 'obsolete', $where, <<'EOF';
AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
https://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_005fINIT_005fAUTOMAKE-invocation
EOF
$package_version = $args[2];
$package_version_location = $where;
}
elsif (defined $args[1])
{
my @opts = split (' ', $args[1]);
@opts = map { { option => $_, where => $where } } @opts;
exit $exit_code unless process_global_option_list (@opts);
}
}
elsif ($macro eq 'AM_MAINTAINER_MODE')
{
$seen_maint_mode = $where;
}
elsif ($macro eq 'AM_PROG_AR')
{
$seen_ar = $where;
}
elsif ($macro eq '_AM_COND_IF')
{
cond_stack_if ('', $args[1], $where);
error ($where, "missing m4 quoting, macro depth $depth")
if ($depth != 1);
}
elsif ($macro eq '_AM_COND_ELSE')
{
cond_stack_else ('!', $args[1], $where);
error ($where, "missing m4 quoting, macro depth $depth")
if ($depth != 1);
}
elsif ($macro eq '_AM_COND_ENDIF')
{
cond_stack_endif (undef, undef, $where);
error ($where, "missing m4 quoting, macro depth $depth")
if ($depth != 1);
}
elsif ($macro eq '_AM_SUBST_NOTMAKE')
{
$ignored_configure_vars{$args[1]} = $where;
}
elsif ($macro eq 'm4_include'
|| $macro eq 'm4_sinclude'
|| $macro eq 'sinclude')
{
# Skip missing 'sinclude'd files.
next if $macro ne 'm4_include' && ! -f $args[1];
# Some modified versions of Autoconf don't use
# frozen files. Consequently it's possible that we see all
# m4_include's performed during Autoconf's startup.
# Obviously we don't want to distribute Autoconf's files
# so we skip absolute filenames here.
push @configure_deps, '$(top_srcdir)/' . $args[1]
unless $here =~ m,^(?:\w:)?[\\/],;
# Keep track of the greatest timestamp.
if (-e $args[1])
{
my $mtime = mtime $args[1];
$configure_deps_greatest_timestamp = $mtime
if $mtime > $configure_deps_greatest_timestamp;
}
}
elsif ($macro eq 'LT_SUPPORTED_TAG')
{
$libtool_tags{$args[1]} = 1;
$libtool_new_api = 1;
}
elsif ($macro eq '_LT_AC_TAGCONFIG')
{
# _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
# We use it to detect whether tags are supported. Our
# preferred interface is LT_SUPPORTED_TAG, but it was
# introduced in Libtool 1.6.
if (0 == keys %libtool_tags)
{
# Hardcode the tags supported by Libtool 1.5.
%libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
}
}
}
error ($where, "condition stack not properly closed")
if (@cond_stack);
$tracefh->close;
}
# Check whether we use 'configure.ac' or 'configure.in'.
# Scan it (and possibly 'aclocal.m4') for interesting things.
# We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
sub scan_autoconf_files ()
{
# Reinitialize libsources here. This isn't really necessary,
# since we currently assume there is only one configure.ac. But
# that won't always be the case.
%libsources = ();
# Keep track of the youngest configure dependency.
$configure_deps_greatest_timestamp = mtime $configure_ac;
if (-e 'aclocal.m4')
{
my $mtime = mtime 'aclocal.m4';
$configure_deps_greatest_timestamp = $mtime
if $mtime > $configure_deps_greatest_timestamp;
}
scan_autoconf_traces ($configure_ac);
@configure_input_files = sort keys %make_list;
# Set input and output files if not specified by user.
if (! @input_files)
{
@input_files = @configure_input_files;
%output_files = %make_list;
}
if (! $seen_init_automake)
{
err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
. "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
. "\nthat aclocal.m4 is present in the top-level directory,\n"
. "and that aclocal.m4 was recently regenerated "
. "(using aclocal)");
}
else
{
if (! $seen_automake_version)
{
if (-f 'aclocal.m4')
{
error ($seen_init_automake,
"your implementation of AM_INIT_AUTOMAKE comes from " .
"an\nold Automake version. You should recreate " .
"aclocal.m4\nwith aclocal and run automake again",
# $? = 63 is used to indicate version mismatch to missing.
exit_code => 63);
}
else
{
error ($seen_init_automake,
"no proper implementation of AM_INIT_AUTOMAKE was " .
"found,\nprobably because aclocal.m4 is missing.\n" .
"You should run aclocal to create this file, then\n" .
"run automake again");
}
}
}
locate_aux_dir ();
# Look for some files we need. Always check for these. This
# check must be done for every run, even those where we are only
# looking at a subdir Makefile. We must set relative_dir for
# push_required_file to work.
# Sort the files for stable verbose output.
$relative_dir = '.';
foreach my $file (sort keys %required_aux_file)
{
require_conf_file ($required_aux_file{$file}->get, FOREIGN, $file)
}
err_am "'install.sh' is an anachronism; use 'install-sh' instead"
if -f $config_aux_dir . '/install.sh';
# Preserve dist_common for later.
@configure_dist_common = @dist_common;
}
################################################################
# Do any extra checking for GNU standards.
sub check_gnu_standards ()
{
if ($relative_dir eq '.')
{
# In top level (or only) directory.
require_file ("$am_file.am", GNU,
qw/INSTALL NEWS README AUTHORS ChangeLog/);
# Accept one of these three licenses; default to COPYING.
# Make sure we do not overwrite an existing license.
my $license;
foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
{
if (-f $_)
{
$license = $_;
last;
}
}
require_file ("$am_file.am", GNU, 'COPYING')
unless $license;
}
for my $opt ('no-installman', 'no-installinfo')
{
msg ('error-gnu', option $opt,
"option '$opt' disallowed by GNU standards")
if option $opt;
}
}
# Do any extra checking for GNITS standards.
sub check_gnits_standards ()
{
if ($relative_dir eq '.')
{
# In top level (or only) directory.
require_file ("$am_file.am", GNITS, 'THANKS');
}
}
################################################################
#
# Functions to handle files of each language.
# Each 'lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
# simple formula: Return value is LANG_SUBDIR if the resulting object
# file should be in a subdir if the source file is, LANG_PROCESS if
# file is to be dealt with, LANG_IGNORE otherwise.
# Much of the actual processing is handled in
# handle_single_transform. These functions exist so that
# auxiliary information can be recorded for a later cleanup pass.
# Note that the calls to these functions are computed, so don't bother
# searching for their precise names in the source.
# This is just a convenience function that can be used to determine
# when a subdir object should be used.
sub lang_sub_obj ()
{
return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
}
# Rewrite a single header file.
sub lang_header_rewrite
{
# Header files are simply ignored.
return LANG_IGNORE;
}
# Rewrite a single Vala source file.
sub lang_vala_rewrite
{
my ($directory, $base, $ext) = @_;
(my $newext = $ext) =~ s/vala$/c/;
return (LANG_SUBDIR, $newext);
}
# Rewrite a single yacc/yacc++ file.
sub lang_yacc_rewrite
{
my ($directory, $base, $ext) = @_;
my $r = lang_sub_obj;
(my $newext = $ext) =~ tr/y/c/;
return ($r, $newext);
}
sub lang_yaccxx_rewrite { lang_yacc_rewrite (@_); };
# Rewrite a single lex/lex++ file.
sub lang_lex_rewrite
{
my ($directory, $base, $ext) = @_;
my $r = lang_sub_obj;
(my $newext = $ext) =~ tr/l/c/;
return ($r, $newext);
}
sub lang_lexxx_rewrite { lang_lex_rewrite (@_); };
# Rewrite a single Java file.
sub lang_java_rewrite
{
return LANG_SUBDIR;
}
# The lang_X_finish functions are called after all source file
# processing is done. Each should handle defining rules for the
# language, etc. A finish function is only called if a source file of
# the appropriate type has been seen.
sub lang_vala_finish_target
{
my ($self, $name) = @_;
my $derived = canonicalize ($name);
my $var = var "${derived}_SOURCES";
return unless $var;
my @vala_sources = grep { /\.(vala|vapi)$/ } ($var->value_as_list_recursive);
# For automake bug#11229.
return unless @vala_sources;
foreach my $vala_file (@vala_sources)
{
my $c_file = $vala_file;
if ($c_file =~ s/(.*)\.vala$/$1.c/)
{
$c_file = "\$(srcdir)/$c_file";
$output_rules .= "$c_file: \$(srcdir)/${derived}_vala.stamp\n"
. "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
. "\t\@if test -f \$@; then :; else \\\n"
. "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
. "\tfi\n";
$clean_files{$c_file} = MAINTAINER_CLEAN;
}
}
# Add rebuild rules for generated header and vapi files
my $flags = var ($derived . '_VALAFLAGS');
if ($flags)
{
my $lastflag = '';
foreach my $flag ($flags->value_as_list_recursive)
{
if (grep (/$lastflag/, ('-H', '-h', '--header', '--internal-header',
'--vapi', '--internal-vapi', '--gir')))
{
my $headerfile = "\$(srcdir)/$flag";
$output_rules .= "$headerfile: \$(srcdir)/${derived}_vala.stamp\n"
. "\t\@if test -f \$@; then :; else rm -f \$(srcdir)/${derived}_vala.stamp; fi\n"
. "\t\@if test -f \$@; then :; else \\\n"
. "\t \$(MAKE) \$(AM_MAKEFLAGS) \$(srcdir)/${derived}_vala.stamp; \\\n"
. "\tfi\n";
# valac is not used when building from dist tarballs
# distribute the generated files
push_dist_common ($headerfile);
$clean_files{$headerfile} = MAINTAINER_CLEAN;
}
$lastflag = $flag;
}
}
my $compile = $self->compile;
# Rewrite each occurrence of 'AM_VALAFLAGS' in the compile
# rule into '${derived}_VALAFLAGS' if it exists.
my $val = "${derived}_VALAFLAGS";
$compile =~ s/\(AM_VALAFLAGS\)/\($val\)/
if set_seen ($val);
# VALAFLAGS is a user variable (per GNU Standards),
# it should not be overridden in the Makefile...
check_user_variables 'VALAFLAGS';
my $dirname = dirname ($name);
# Only generate C code, do not run C compiler
$compile .= " -C";
my $verbose = verbose_flag ('VALAC');
my $silent = silent_flag ();
my $stampfile = "\$(srcdir)/${derived}_vala.stamp";
$output_rules .=
"\$(srcdir)/${derived}_vala.stamp: @vala_sources\n".
# Since the C files generated from the vala sources depend on the
# ${derived}_vala.stamp file, we must ensure its timestamp is older than
# those of the C files generated by the valac invocation below (this is
# especially important on systems with sub-second timestamp resolution).
# Thus we need to create the stamp file *before* invoking valac, and to
# move it to its final location only after valac has been invoked.
"\t${silent}rm -f \$\@ && echo stamp > \$\@-t\n".
"\t${verbose}\$(am__cd) \$(srcdir) && $compile @vala_sources\n".
"\t${silent}mv -f \$\@-t \$\@\n";
push_dist_common ($stampfile);
$clean_files{$stampfile} = MAINTAINER_CLEAN;
}
# Add output rules to invoke valac and create stamp file as a witness
# to handle multiple outputs. This function is called after all source
# file processing is done.
sub lang_vala_finish ()
{
my ($self) = @_;
foreach my $prog (keys %known_programs)
{
lang_vala_finish_target ($self, $prog);
}
while (my ($name) = each %known_libraries)
{
lang_vala_finish_target ($self, $name);
}
}
# The built .c files should be cleaned only on maintainer-clean
# as the .c files are distributed. This function is called for each
# .vala source file.
sub lang_vala_target_hook
{
my ($self, $aggregate, $output, $input, %transform) = @_;
$clean_files{$output} = MAINTAINER_CLEAN;
}
# This is a yacc helper which is called whenever we have decided to
# compile a yacc file.
sub lang_yacc_target_hook
{
my ($self, $aggregate, $output, $input, %transform) = @_;
# If some relevant *YFLAGS variable contains the '-d' flag, we'll
# have to to generate special code.
my $yflags_contains_minus_d = 0;
foreach my $pfx ("", "${aggregate}_")
{
my $yflagsvar = var ("${pfx}YFLAGS");
next unless $yflagsvar;
# We cannot work reliably with conditionally-defined YFLAGS.
if ($yflagsvar->has_conditional_contents)
{
msg_var ('unsupported', $yflagsvar,
"'${pfx}YFLAGS' cannot have conditional contents");
}
else
{
$yflags_contains_minus_d = 1
if grep (/^-d$/, $yflagsvar->value_as_list_recursive);
}
}
if ($yflags_contains_minus_d)
{
# Found a '-d' that applies to the compilation of this file.
# Add a dependency for the generated header file, and arrange
# for that file to be included in the distribution.
# The extension of the output file (e.g., '.c' or '.cxx').
# We'll need it to compute the name of the generated header file.
(my $output_ext = basename ($output)) =~ s/.*(\.[^.]+)$/$1/;
# We know that a yacc input should be turned into either a C or
# C++ output file. We depend on this fact (here and in yacc.am),
# so check that it really holds.
my $lang = $languages{$extension_map{$output_ext}};
prog_error "invalid output name '$output' for yacc file '$input'"
if (!$lang || ($lang->name ne 'c' && $lang->name ne 'cxx'));
(my $header_ext = $output_ext) =~ s/c/h/g;
# Quote $output_ext in the regexp, so that dots in it are taken
# as literal dots, not as metacharacters.
(my $header = $output) =~ s/\Q$output_ext\E$/$header_ext/;
foreach my $cond (Automake::Rule::define (${header}, 'internal',
RULE_AUTOMAKE, TRUE,
INTERNAL))
{
my $condstr = $cond->subst_string;
$output_rules .=
"$condstr${header}: $output\n"
# Recover from removal of $header
. "$condstr\t\@if test ! -f \$@; then rm -f $output; else :; fi\n"
. "$condstr\t\@if test ! -f \$@; then \$(MAKE) \$(AM_MAKEFLAGS) $output; else :; fi\n";
}
# Distribute the generated file, unless its .y source was
# listed in a nodist_ variable. (handle_source_transform()
# will set DIST_SOURCE.)
push_dist_common ($header)
if $transform{'DIST_SOURCE'};
# The GNU rules say that yacc/lex output files should be removed
# by maintainer-clean. However, if the files are not distributed,
# then we want to remove them with "make clean"; otherwise,
# "make distcheck" will fail.
$clean_files{$header} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
}
# See the comment above for $HEADER.
$clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
}
# This is a lex helper which is called whenever we have decided to
# compile a lex file.
sub lang_lex_target_hook
{
my ($self, $aggregate, $output, $input, %transform) = @_;
# The GNU rules say that yacc/lex output files should be removed
# by maintainer-clean. However, if the files are not distributed,
# then we want to remove them with "make clean"; otherwise,
# "make distcheck" will fail.
$clean_files{$output} = $transform{'DIST_SOURCE'} ? MAINTAINER_CLEAN : CLEAN;
}
# This is a helper for both lex and yacc.
sub yacc_lex_finish_helper ()
{
return if defined $language_scratch{'lex-yacc-done'};
$language_scratch{'lex-yacc-done'} = 1;
# FIXME: for now, no line number.
require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
}
sub lang_yacc_finish ()
{
return if defined $language_scratch{'yacc-done'};
$language_scratch{'yacc-done'} = 1;
reject_var 'YACCFLAGS', "'YACCFLAGS' obsolete; use 'YFLAGS' instead";
yacc_lex_finish_helper;
}
sub lang_lex_finish ()
{
return if defined $language_scratch{'lex-done'};
$language_scratch{'lex-done'} = 1;
yacc_lex_finish_helper;
}
# Given a hash table of linker names, pick the name that has the most
# precedence. This is lame, but something has to have global
# knowledge in order to eliminate the conflict. Add more linkers as
# required.
sub resolve_linker
{
my (%linkers) = @_;
foreach my $l (qw(GCJLINK OBJCXXLINK CXXLINK F77LINK FCLINK OBJCLINK UPCLINK))
{
return $l if defined $linkers{$l};
}
return 'LINK';
}
# Called to indicate that an extension was used.
sub saw_extension
{
my ($ext) = @_;
$extension_seen{$ext} = 1;
}
# register_language (%ATTRIBUTE)
# ------------------------------
# Register a single language.
# Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
sub register_language
{
my (%option) = @_;
# Set the defaults.
$option{'autodep'} = 'no'
unless defined $option{'autodep'};
$option{'linker'} = ''
unless defined $option{'linker'};
$option{'flags'} = []
unless defined $option{'flags'};
$option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
unless defined $option{'output_extensions'};
$option{'nodist_specific'} = 0
unless defined $option{'nodist_specific'};
my $lang = new Automake::Language (%option);
# Fill indexes.
$extension_map{$_} = $lang->name foreach @{$lang->extensions};
$languages{$lang->name} = $lang;
my $link = $lang->linker;
if ($link)
{
if (exists $link_languages{$link})
{
prog_error ("'$link' has different definitions in "
. $lang->name . " and " . $link_languages{$link}->name)
if $lang->link ne $link_languages{$link}->link;
}
else
{
$link_languages{$link} = $lang;
}
}
# Update the pattern of known extensions.
accept_extensions (@{$lang->extensions});
# Update the suffix rules map.
foreach my $suffix (@{$lang->extensions})
{
foreach my $dest ($lang->output_extensions->($suffix))
{
register_suffix_rule (INTERNAL, $suffix, $dest);
}
}
}
# derive_suffix ($EXT, $OBJ)
# --------------------------
# This function is used to find a path from a user-specified suffix $EXT
# to $OBJ or to some other suffix we recognize internally, e.g. 'cc'.
sub derive_suffix
{
my ($source_ext, $obj) = @_;
while (!$extension_map{$source_ext} && $source_ext ne $obj)
{
my $new_source_ext = next_in_suffix_chain ($source_ext, $obj);
last if not defined $new_source_ext;
$source_ext = $new_source_ext;
}
return $source_ext;
}
# Pretty-print something and append to '$output_rules'.
sub pretty_print_rule
{
$output_rules .= makefile_wrap (shift, shift, @_);
}
################################################################
## -------------------------------- ##
## Handling the conditional stack. ##
## -------------------------------- ##
# $STRING
# make_conditional_string ($NEGATE, $COND)
# ----------------------------------------
sub make_conditional_string
{
my ($negate, $cond) = @_;
$cond = "${cond}_TRUE"
unless $cond =~ /^TRUE|FALSE$/;
$cond = Automake::Condition::conditional_negate ($cond)
if $negate;
return $cond;
}
my %_am_macro_for_cond =
(
AMDEP => "one of the compiler tests\n"
. " AC_PROG_CC, AC_PROG_CXX, AC_PROG_OBJC, AC_PROG_OBJCXX,\n"
. " AM_PROG_AS, AM_PROG_GCJ, AM_PROG_UPC",
am__fastdepCC => 'AC_PROG_CC',
am__fastdepCCAS => 'AM_PROG_AS',
am__fastdepCXX => 'AC_PROG_CXX',
am__fastdepGCJ => 'AM_PROG_GCJ',
am__fastdepOBJC => 'AC_PROG_OBJC',
am__fastdepOBJCXX => 'AC_PROG_OBJCXX',
am__fastdepUPC => 'AM_PROG_UPC'
);
# $COND
# cond_stack_if ($NEGATE, $COND, $WHERE)
# --------------------------------------
sub cond_stack_if
{
my ($negate, $cond, $where) = @_;
if (! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/)
{
my $text = "$cond does not appear in AM_CONDITIONAL";
my $scope = US_LOCAL;
if (exists $_am_macro_for_cond{$cond})
{
my $mac = $_am_macro_for_cond{$cond};
$text .= "\n The usual way to define '$cond' is to add ";
$text .= ($mac =~ / /) ? $mac : "'$mac'";
$text .= "\n to '$configure_ac' and run 'aclocal' and 'autoconf' again";
# These warnings appear in Automake files (depend2.am),
# so there is no need to display them more than once:
$scope = US_GLOBAL;
}
error $where, $text, uniq_scope => $scope;
}
push (@cond_stack, make_conditional_string ($negate, $cond));
return new Automake::Condition (@cond_stack);
}
# $COND
# cond_stack_else ($NEGATE, $COND, $WHERE)
# ----------------------------------------
sub cond_stack_else
{
my ($negate, $cond, $where) = @_;
if (! @cond_stack)
{
error $where, "else without if";
return FALSE;
}
$cond_stack[$#cond_stack] =
Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
# If $COND is given, check against it.
if (defined $cond)
{
$cond = make_conditional_string ($negate, $cond);
error ($where, "else reminder ($negate$cond) incompatible with "
. "current conditional: $cond_stack[$#cond_stack]")
if $cond_stack[$#cond_stack] ne $cond;
}
return new Automake::Condition (@cond_stack);
}
# $COND
# cond_stack_endif ($NEGATE, $COND, $WHERE)
# -----------------------------------------
sub cond_stack_endif
{
my ($negate, $cond, $where) = @_;
my $old_cond;
if (! @cond_stack)
{
error $where, "endif without if";
return TRUE;
}
# If $COND is given, check against it.
if (defined $cond)
{
$cond = make_conditional_string ($negate, $cond);
error ($where, "endif reminder ($negate$cond) incompatible with "
. "current conditional: $cond_stack[$#cond_stack]")
if $cond_stack[$#cond_stack] ne $cond;
}
pop @cond_stack;
return new Automake::Condition (@cond_stack);
}
## ------------------------ ##
## Handling the variables. ##
## ------------------------ ##
# define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
# ----------------------------------------------------
# Like define_variable, but the value is a list, and the variable may
# be defined conditionally. The second argument is the condition
# under which the value should be defined; this should be the empty
# string to define the variable unconditionally. The third argument
# is a list holding the values to use for the variable. The value is
# pretty printed in the output file.
sub define_pretty_variable
{
my ($var, $cond, $where, @value) = @_;
if (! vardef ($var, $cond))
{
Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
'', $where, VAR_PRETTY);
rvar ($var)->rdef ($cond)->set_seen;
}
}
# define_variable ($VAR, $VALUE, $WHERE)
# --------------------------------------
# Define a new Automake Makefile variable VAR to VALUE, but only if
# not already defined.
sub define_variable
{
my ($var, $value, $where) = @_;
define_pretty_variable ($var, TRUE, $where, $value);
}
# define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
# ------------------------------------------------------------
# Define the $VAR which content is the list of file names composed of
# a @BASENAME and the $EXTENSION.
sub define_files_variable ($\@$$)
{
my ($var, $basename, $extension, $where) = @_;
define_variable ($var,
join (' ', map { "$_.$extension" } @$basename),
$where);
}
# Like define_variable, but define a variable to be the configure
# substitution by the same name.
sub define_configure_variable
{
my ($var) = @_;
# Some variables we do not want to output. For instance it
# would be a bad idea to output `U = @U@` when `@U@` can be
# substituted as `\`.
my $pretty = exists $ignored_configure_vars{$var} ? VAR_SILENT : VAR_ASIS;
Automake::Variable::define ($var, VAR_CONFIGURE, '', TRUE, subst ($var),
'', $configure_vars{$var}, $pretty);
}
# define_compiler_variable ($LANG)
# --------------------------------
# Define a compiler variable. We also handle defining the 'LT'
# version of the command when using libtool.
sub define_compiler_variable
{
my ($lang) = @_;
my ($var, $value) = ($lang->compiler, $lang->compile);
my $libtool_tag = '';
$libtool_tag = '--tag=' . $lang->libtool_tag . ' '
if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
define_variable ($var, $value, INTERNAL);
if (var ('LIBTOOL'))
{
my $verbose = define_verbose_libtool ();
define_variable ("LT$var",
"\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS)"
. " \$(LIBTOOLFLAGS) --mode=compile $value",
INTERNAL);
}
define_verbose_tagvar ($lang->ccer || 'GEN');
}
sub define_linker_variable
{
my ($lang) = @_;
my $libtool_tag = '';
$libtool_tag = '--tag=' . $lang->libtool_tag . ' '
if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
# CCLD = $(CC).
define_variable ($lang->lder, $lang->ld, INTERNAL);
# CCLINK = $(CCLD) blah blah...
my $link = '';
if (var ('LIBTOOL'))
{
my $verbose = define_verbose_libtool ();
$link = "\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) "
. "\$(LIBTOOLFLAGS) --mode=link ";
}
define_variable ($lang->linker, $link . $lang->link, INTERNAL);
define_variable ($lang->compiler, $lang, INTERNAL);
define_verbose_tagvar ($lang->lder || 'GEN');
}
sub define_per_target_linker_variable
{
my ($linker, $target) = @_;
# If the user wrote a custom link command, we don't define ours.
return "${target}_LINK"
if set_seen "${target}_LINK";
my $xlink = $linker ? $linker : 'LINK';
my $lang = $link_languages{$xlink};
prog_error "Unknown language for linker variable '$xlink'"
unless $lang;
my $link_command = $lang->link;
if (var 'LIBTOOL')
{
my $libtool_tag = '';
$libtool_tag = '--tag=' . $lang->libtool_tag . ' '
if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
my $verbose = define_verbose_libtool ();
$link_command =
"\$(LIBTOOL) $verbose $libtool_tag\$(AM_LIBTOOLFLAGS) \$(LIBTOOLFLAGS) "
. "--mode=link " . $link_command;
}
# Rewrite each occurrence of 'AM_$flag' in the link
# command into '${derived}_$flag' if it exists.
my $orig_command = $link_command;
my @flags = (@{$lang->flags}, 'LDFLAGS');
push @flags, 'LIBTOOLFLAGS' if var 'LIBTOOL';
for my $flag (@flags)
{
my $val = "${target}_$flag";
$link_command =~ s/\(AM_$flag\)/\($val\)/
if set_seen ($val);
}
# If the computed command is the same as the generic command, use
# the command linker variable.
return ($lang->linker, $lang->lder)
if $link_command eq $orig_command;
define_variable ("${target}_LINK", $link_command, INTERNAL);
return ("${target}_LINK", $lang->lder);
}
################################################################
# check_trailing_slash ($WHERE, $LINE)
# ------------------------------------
# Return 1 iff $LINE ends with a slash.
# Might modify $LINE.
sub check_trailing_slash ($\$)
{
my ($where, $line) = @_;
# Ignore '##' lines.
return 0 if $$line =~ /$IGNORE_PATTERN/o;
# Catch and fix a common error.
msg "syntax", $where, "whitespace following trailing backslash"
if $$line =~ s/\\\s+\n$/\\\n/;
return $$line =~ /\\$/;
}
# read_am_file ($AMFILE, $WHERE, $RELDIR)
# ---------------------------------------
# Read $AMFILE file name which is located in $RELDIR, and set up
# global variables resetted by '&generate_makefile'. Simultaneously
# copy lines from $AMFILE into '$output_trailer', or define variables
# as appropriate.
#
# NOTE: We put rules in the trailer section. We want user rules to
# come after our generated stuff.
sub read_am_file
{
my ($amfile, $where, $reldir) = @_;
my $canon_reldir = &canonicalize ($reldir);
my $am_file = new Automake::XFile ("< $amfile");
verb "reading $amfile";
# Keep track of the youngest output dependency.
my $mtime = mtime $amfile;
$output_deps_greatest_timestamp = $mtime
if $mtime > $output_deps_greatest_timestamp;
my $spacing = '';
my $comment = '';
my $blank = 0;
my $saw_bk = 0;
my $var_look = VAR_ASIS;
use constant IN_VAR_DEF => 0;
use constant IN_RULE_DEF => 1;
use constant IN_COMMENT => 2;
my $prev_state = IN_RULE_DEF;
while ($_ = $am_file->getline)
{
$where->set ("$amfile:$.");
if (/$IGNORE_PATTERN/o)
{
# Merely delete comments beginning with two hashes.
}
elsif (/$WHITE_PATTERN/o)
{
error $where, "blank line following trailing backslash"
if $saw_bk;
# Stick a single white line before the incoming macro or rule.
$spacing = "\n";
$blank = 1;
# Flush all comments seen so far.
if ($comment ne '')
{
$output_vars .= $comment;
$comment = '';
}
}
elsif (/$COMMENT_PATTERN/o)
{
# Stick comments before the incoming macro or rule. Make
# sure a blank line precedes the first block of comments.
$spacing = "\n" unless $blank;
$blank = 1;
$comment .= $spacing . $_;
$spacing = '';
$prev_state = IN_COMMENT;
}
else
{
last;
}
$saw_bk = check_trailing_slash ($where, $_);
}
# We save the conditional stack on entry, and then check to make
# sure it is the same on exit. This lets us conditionally include
# other files.
my @saved_cond_stack = @cond_stack;
my $cond = new Automake::Condition (@cond_stack);
my $last_var_name = '';
my $last_var_type = '';
my $last_var_value = '';
my $last_where;
# FIXME: shouldn't use $_ in this loop; it is too big.
while ($_)
{
$where->set ("$amfile:$.");
# Make sure the line is \n-terminated.
chomp;
$_ .= "\n";
# Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
# used by users. @MAINT@ is an anachronism now.
$_ =~ s/\@MAINT\@//g
unless $seen_maint_mode;
my $new_saw_bk = check_trailing_slash ($where, $_);
if ($reldir eq '.')
{
# If present, eat the following '_' or '/', converting
# "%reldir%/foo" and "%canon_reldir%_foo" into plain "foo"
# when $reldir is '.'.
$_ =~ s,%(D|reldir)%/,,g;
$_ =~ s,%(C|canon_reldir)%_,,g;
}
$_ =~ s/%(D|reldir)%/${reldir}/g;
$_ =~ s/%(C|canon_reldir)%/${canon_reldir}/g;
if (/$IGNORE_PATTERN/o)
{
# Merely delete comments beginning with two hashes.
# Keep any backslash from the previous line.
$new_saw_bk = $saw_bk;
}
elsif (/$WHITE_PATTERN/o)
{
# Stick a single white line before the incoming macro or rule.
$spacing = "\n";
error $where, "blank line following trailing backslash"
if $saw_bk;
}
elsif (/$COMMENT_PATTERN/o)
{
error $where, "comment following trailing backslash"
if $saw_bk && $prev_state != IN_COMMENT;
# Stick comments before the incoming macro or rule.
$comment .= $spacing . $_;
$spacing = '';
$prev_state = IN_COMMENT;
}
elsif ($saw_bk)
{
if ($prev_state == IN_RULE_DEF)
{
my $cond = new Automake::Condition @cond_stack;
$output_trailer .= $cond->subst_string;
$output_trailer .= $_;
}
elsif ($prev_state == IN_COMMENT)
{
# If the line doesn't start with a '#', add it.
# We do this because a continued comment like
# # A = foo \
# bar \
# baz
# is not portable. BSD make doesn't honor
# escaped newlines in comments.
s/^#?/#/;
$comment .= $spacing . $_;
}
else # $prev_state == IN_VAR_DEF
{
$last_var_value .= ' '
unless $last_var_value =~ /\s$/;
$last_var_value .= $_;
if (!/\\$/)
{
Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
$last_var_type, $cond,
$last_var_value, $comment,
$last_where, VAR_ASIS)
if $cond != FALSE;
$comment = $spacing = '';
}
}
}
elsif (/$IF_PATTERN/o)
{
$cond = cond_stack_if ($1, $2, $where);
}
elsif (/$ELSE_PATTERN/o)
{
$cond = cond_stack_else ($1, $2, $where);
}
elsif (/$ENDIF_PATTERN/o)
{
$cond = cond_stack_endif ($1, $2, $where);
}
elsif (/$RULE_PATTERN/o)
{
# Found a rule.
$prev_state = IN_RULE_DEF;
# For now we have to output all definitions of user rules
# and can't diagnose duplicates (see the comment in
# Automake::Rule::define). So we go on and ignore the return value.
Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
check_variable_expansions ($_, $where);
$output_trailer .= $comment . $spacing;
my $cond = new Automake::Condition @cond_stack;
$output_trailer .= $cond->subst_string;
$output_trailer .= $_;
$comment = $spacing = '';
}
elsif (/$ASSIGNMENT_PATTERN/o)
{
# Found a macro definition.
$prev_state = IN_VAR_DEF;
$last_var_name = $1;
$last_var_type = $2;
$last_var_value = $3;
$last_where = $where->clone;
if ($3 ne '' && substr ($3, -1) eq "\\")
{
# We preserve the '\' because otherwise the long lines
# that are generated will be truncated by broken
# 'sed's.
$last_var_value = $3 . "\n";
}
# Normally we try to output variable definitions in the
# same format they were input. However, POSIX compliant
# systems are not required to support lines longer than
# 2048 bytes (most notably, some sed implementation are
# limited to 4000 bytes, and sed is used by config.status
# to rewrite Makefile.in into Makefile). Moreover nobody
# would really write such long lines by hand since it is
# hardly maintainable. So if a line is longer that 1000
# bytes (an arbitrary limit), assume it has been
# automatically generated by some tools, and flatten the
# variable definition. Otherwise, keep the variable as it
# as been input.
$var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
if (!/\\$/)
{
Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
$last_var_type, $cond,
$last_var_value, $comment,
$last_where, $var_look)
if $cond != FALSE;
$comment = $spacing = '';
$var_look = VAR_ASIS;
}
}
elsif (/$INCLUDE_PATTERN/o)
{
my $path = $1;
if ($path =~ s/^\$\(top_srcdir\)\///)
{
push (@include_stack, "\$\(top_srcdir\)/$path");
# Distribute any included file.
# Always use the $(top_srcdir) prefix in DIST_COMMON,
# otherwise OSF make will implicitly copy the included
# file in the build tree during "make distdir" to satisfy
# the dependency.
# (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
push_dist_common ("\$\(top_srcdir\)/$path");
}
else
{
$path =~ s/\$\(srcdir\)\///;
push (@include_stack, "\$\(srcdir\)/$path");
# Always use the $(srcdir) prefix in DIST_COMMON,
# otherwise OSF make will implicitly copy the included
# file in the build tree during "make distdir" to satisfy
# the dependency.
# (subdir-am-cond.sh and subdir-ac-cond.sh will fail)
push_dist_common ("\$\(srcdir\)/$path");
$path = $relative_dir . "/" . $path if $relative_dir ne '.';
}
my $new_reldir = File::Spec->abs2rel ($path, $relative_dir);
$new_reldir = '.' if $new_reldir !~ s,/[^/]*$,,;
$where->push_context ("'$path' included from here");
read_am_file ($path, $where, $new_reldir);
$where->pop_context;
}
else
{
# This isn't an error; it is probably a continued rule.
# In fact, this is what we assume.
$prev_state = IN_RULE_DEF;
check_variable_expansions ($_, $where);
$output_trailer .= $comment . $spacing;
my $cond = new Automake::Condition @cond_stack;
$output_trailer .= $cond->subst_string;
$output_trailer .= $_;
$comment = $spacing = '';
error $where, "'#' comment at start of rule is unportable"
if $_ =~ /^\t\s*\#/;
}
$saw_bk = $new_saw_bk;
$_ = $am_file->getline;
}
$output_trailer .= $comment;
error ($where, "trailing backslash on last line")
if $saw_bk;
error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
: "too many conditionals closed in include file"))
if "@saved_cond_stack" ne "@cond_stack";
}
# A helper for read_main_am_file which initializes configure variables
# and variables from header-vars.am.
sub define_standard_variables ()
{
my $saved_output_vars = $output_vars;
my ($comments, undef, $rules) =
file_contents_internal (1, "$libdir/am/header-vars.am",
new Automake::Location);
foreach my $var (sort keys %configure_vars)
{
define_configure_variable ($var);
}
$output_vars .= $comments . $rules;
}
# read_main_am_file ($MAKEFILE_AM, $MAKEFILE_IN)
# ----------------------------------------------
sub read_main_am_file
{
my ($amfile, $infile) = @_;
# This supports the strange variable tricks we are about to play.
prog_error ("variable defined before read_main_am_file\n" . variables_dump ())
if (scalar (variables) > 0);
# Generate copyright header for generated Makefile.in.
# We do discard the output of predefined variables, handled below.
$output_vars = ("# " . basename ($infile) . " generated by automake "
. $VERSION . " from " . basename ($amfile) . ".\n");
$output_vars .= '# ' . subst ('configure_input') . "\n";
$output_vars .= $gen_copyright;
# We want to predefine as many variables as possible. This lets
# the user set them with '+=' in Makefile.am.
define_standard_variables;
# Read user file, which might override some of our values.
read_am_file ($amfile, new Automake::Location, '.');
}
################################################################
# $STRING
# flatten ($ORIGINAL_STRING)
# --------------------------
sub flatten
{
$_ = shift;
s/\\\n//somg;
s/\s+/ /g;
s/^ //;
s/ $//;
return $_;
}
# transform_token ($TOKEN, \%PAIRS, $KEY)
# ---------------------------------------
# Return the value associated to $KEY in %PAIRS, as used on $TOKEN
# (which should be ?KEY? or any of the special %% requests)..
sub transform_token ($\%$)
{
my ($token, $transform, $key) = @_;
my $res = $transform->{$key};
prog_error "Unknown key '$key' in '$token'" unless defined $res;
return $res;
}
# transform ($TOKEN, \%PAIRS)
# ---------------------------
# If ($TOKEN, $VAL) is in %PAIRS:
# - replaces %KEY% with $VAL,
# - enables/disables ?KEY? and ?!KEY?,
# - replaces %?KEY% with TRUE or FALSE.
sub transform ($\%)
{
my ($token, $transform) = @_;
# %KEY%.
# Must be before the following pattern to exclude the case
# when there is neither IFTRUE nor IFFALSE.
if ($token =~ /^%([\w\-]+)%$/)
{
return transform_token ($token, %$transform, $1);
}
# %?KEY%.
elsif ($token =~ /^%\?([\w\-]+)%$/)
{
return transform_token ($token, %$transform, $1) ? 'TRUE' : 'FALSE';
}
# ?KEY? and ?!KEY?.
elsif ($token =~ /^ \? (!?) ([\w\-]+) \? $/x)
{
my $neg = ($1 eq '!') ? 1 : 0;
my $val = transform_token ($token, %$transform, $2);
return (!!$val == $neg) ? '##%' : '';
}
else
{
prog_error "Unknown request format: $token";
}
}
# $TEXT
# preprocess_file ($MAKEFILE, [%TRANSFORM])
# -----------------------------------------
# Load a $MAKEFILE, apply the %TRANSFORM, and return the result.
# No extra parsing or post-processing is done (i.e., recognition of
# rules declaration or of make variables definitions).
sub preprocess_file
{
my ($file, %transform) = @_;
# Complete %transform with global options.
# Note that %transform goes last, so it overrides global options.
%transform = ( 'MAINTAINER-MODE'
=> $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
'XZ' => !! option 'dist-xz',
'LZIP' => !! option 'dist-lzip',
'BZIP2' => !! option 'dist-bzip2',
'COMPRESS' => !! option 'dist-tarZ',
'GZIP' => ! option 'no-dist-gzip',
'SHAR' => !! option 'dist-shar',
'ZIP' => !! option 'dist-zip',
'INSTALL-INFO' => ! option 'no-installinfo',
'INSTALL-MAN' => ! option 'no-installman',
'CK-NEWS' => !! option 'check-news',
'SUBDIRS' => !! var ('SUBDIRS'),
'TOPDIR_P' => $relative_dir eq '.',
'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
'LIBTOOL' => !! var ('LIBTOOL'),
'NONLIBTOOL' => 1,
%transform);
if (! defined ($_ = $am_file_cache{$file}))
{
verb "reading $file";
# Swallow the whole file.
my $fc_file = new Automake::XFile "< $file";
my $saved_dollar_slash = $/;
undef $/;
$_ = $fc_file->getline;
$/ = $saved_dollar_slash;
$fc_file->close;
# Remove ##-comments.
# Besides we don't need more than two consecutive new-lines.
s/(?:$IGNORE_PATTERN|(?<=\n\n)\n+)//gom;
# Remember the contents of the just-read file.
$am_file_cache{$file} = $_;
}
# Substitute Automake template tokens.
s/(?: % \?? [\w\-]+ %
| \? !? [\w\-]+ \?
)/transform($&, %transform)/gex;
# transform() may have added some ##%-comments to strip.
# (we use '##%' instead of '##' so we can distinguish ##%##%##% from
# ####### and do not remove the latter.)
s/^[ \t]*(?:##%)+.*\n//gm;
return $_;
}
# @PARAGRAPHS
# make_paragraphs ($MAKEFILE, [%TRANSFORM])
# -----------------------------------------
# Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
# paragraphs.
sub make_paragraphs
{
my ($file, %transform) = @_;
$transform{FIRST} = !$transformed_files{$file};
$transformed_files{$file} = 1;
my @lines = split /(?set ($file);
my $result_vars = '';
my $result_rules = '';
my $comment = '';
my $spacing = '';
# The following flags are used to track rules spanning across
# multiple paragraphs.
my $is_rule = 0; # 1 if we are processing a rule.
my $discard_rule = 0; # 1 if the current rule should not be output.
# We save the conditional stack on entry, and then check to make
# sure it is the same on exit. This lets us conditionally include
# other files.
my @saved_cond_stack = @cond_stack;
my $cond = new Automake::Condition (@cond_stack);
foreach (make_paragraphs ($file, %transform))
{
# FIXME: no line number available.
$where->set ($file);
# Sanity checks.
error $where, "blank line following trailing backslash:\n$_"
if /\\$/;
error $where, "comment following trailing backslash:\n$_"
if /\\#/;
if (/^$/)
{
$is_rule = 0;
# Stick empty line before the incoming macro or rule.
$spacing = "\n";
}
elsif (/$COMMENT_PATTERN/mso)
{
$is_rule = 0;
# Stick comments before the incoming macro or rule.
$comment = "$_\n";
}
# Handle inclusion of other files.
elsif (/$INCLUDE_PATTERN/o)
{
if ($cond != FALSE)
{
my $file = ($is_am ? "$libdir/am/" : '') . $1;
$where->push_context ("'$file' included from here");
# N-ary '.=' fails.
my ($com, $vars, $rules)
= file_contents_internal ($is_am, $file, $where, %transform);
$where->pop_context;
$comment .= $com;
$result_vars .= $vars;
$result_rules .= $rules;
}
}
# Handling the conditionals.
elsif (/$IF_PATTERN/o)
{
$cond = cond_stack_if ($1, $2, $file);
}
elsif (/$ELSE_PATTERN/o)
{
$cond = cond_stack_else ($1, $2, $file);
}
elsif (/$ENDIF_PATTERN/o)
{
$cond = cond_stack_endif ($1, $2, $file);
}
# Handling rules.
elsif (/$RULE_PATTERN/mso)
{
$is_rule = 1;
$discard_rule = 0;
# Separate relationship from optional actions: the first
# `new-line tab" not preceded by backslash (continuation
# line).
my $paragraph = $_;
/^(.*?)(?:(?subst_string/gme;
$result_rules .= "$spacing$comment$condparagraph\n";
}
if (scalar @undefined_conds == 0)
{
# Remember to discard next paragraphs
# if they belong to this rule.
# (but see also FIXME: #2 above.)
$discard_rule = 1;
}
$comment = $spacing = '';
last;
}
}
}
elsif (/$ASSIGNMENT_PATTERN/mso)
{
my ($var, $type, $val) = ($1, $2, $3);
error $where, "variable '$var' with trailing backslash"
if /\\$/;
$is_rule = 0;
Automake::Variable::define ($var,
$is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
$type, $cond, $val, $comment, $where,
VAR_ASIS)
if $cond != FALSE;
$comment = $spacing = '';
}
else
{
# This isn't an error; it is probably some tokens which
# configure is supposed to replace, such as '@SET-MAKE@',
# or some part of a rule cut by an if/endif.
if (! $cond->false && ! ($is_rule && $discard_rule))
{
s/^/$cond->subst_string/gme;
$result_rules .= "$spacing$comment$_\n";
}
$comment = $spacing = '';
}
}
error ($where, @cond_stack ?
"unterminated conditionals: @cond_stack" :
"too many conditionals closed in include file")
if "@saved_cond_stack" ne "@cond_stack";
return ($comment, $result_vars, $result_rules);
}
# $CONTENTS
# file_contents ($BASENAME, $WHERE, [%TRANSFORM])
# -----------------------------------------------
# Return contents of a file from $libdir/am, automatically skipping
# macros or rules which are already known.
sub file_contents
{
my ($basename, $where, %transform) = @_;
my ($comments, $variables, $rules) =
file_contents_internal (1, "$libdir/am/$basename.am", $where,
%transform);
return "$comments$variables$rules";
}
# @PREFIX
# am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
# ----------------------------------------------------
# Find all variable prefixes that are used for install directories. A
# prefix 'zar' qualifies iff:
#
# * 'zardir' is a variable.
# * 'zar_PRIMARY' is a variable.
#
# As a side effect, it looks for misspellings. It is an error to have
# a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
# "bni_PROGRAMS". However, unusual prefixes are allowed if a variable
# of the same name (with "dir" appended) exists. For instance, if the
# variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
# This is to provide a little extra flexibility in those cases which
# need it.
sub am_primary_prefixes
{
my ($primary, $can_dist, @prefixes) = @_;
local $_;
my %valid = map { $_ => 0 } @prefixes;
$valid{'EXTRA'} = 0;
foreach my $var (variables $primary)
{
# Automake is allowed to define variables that look like primaries
# but which aren't. E.g. INSTALL_sh_DATA.
# Autoconf can also define variables like INSTALL_DATA, so
# ignore all configure variables (at least those which are not
# redefined in Makefile.am).
# FIXME: We should make sure that these variables are not
# conditionally defined (or else adjust the condition below).
my $def = $var->def (TRUE);
next if $def && $def->owner != VAR_MAKEFILE;
my $varname = $var->name;
if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_[[:alnum:]]+$/)
{
my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
if ($dist ne '' && ! $can_dist)
{
err_var ($var,
"invalid variable '$varname': 'dist' is forbidden");
}
# Standard directories must be explicitly allowed.
elsif (! defined $valid{$X} && exists $standard_prefix{$X})
{
err_var ($var,
"'${X}dir' is not a legitimate directory " .
"for '$primary'");
}
# A not explicitly valid directory is allowed if Xdir is defined.
elsif (! defined $valid{$X} &&
$var->requires_variables ("'$varname' is used", "${X}dir"))
{
# Nothing to do. Any error message has been output
# by $var->requires_variables.
}
else
{
# Ensure all extended prefixes are actually used.
$valid{"$base$dist$X"} = 1;
}
}
else
{
prog_error "unexpected variable name: $varname";
}
}
# Return only those which are actually defined.
return sort grep { var ($_ . '_' . $primary) } keys %valid;
}
# am_install_var (-OPTION..., file, HOW, where...)
# ------------------------------------------------
#
# Handle 'where_HOW' variable magic. Does all lookups, generates
# install code, and possibly generates code to define the primary
# variable. The first argument is the name of the .am file to munge,
# the second argument is the primary variable (e.g. HEADERS), and all
# subsequent arguments are possible installation locations.
#
# Returns list of [$location, $value] pairs, where
# $value's are the values in all where_HOW variable, and $location
# there associated location (the place here their parent variables were
# defined).
#
# FIXME: this should be rewritten to be cleaner. It should be broken
# up into multiple functions.
#
sub am_install_var
{
my (@args) = @_;
my $do_require = 1;
my $can_dist = 0;
my $default_dist = 0;
while (@args)
{
if ($args[0] eq '-noextra')
{
$do_require = 0;
}
elsif ($args[0] eq '-candist')
{
$can_dist = 1;
}
elsif ($args[0] eq '-defaultdist')
{
$default_dist = 1;
$can_dist = 1;
}
elsif ($args[0] !~ /^-/)
{
last;
}
shift (@args);
}
my ($file, $primary, @prefix) = @args;
# Now that configure substitutions are allowed in where_HOW
# variables, it is an error to actually define the primary. We
# allow 'JAVA', as it is customarily used to mean the Java
# interpreter. This is but one of several Java hacks. Similarly,
# 'PYTHON' is customarily used to mean the Python interpreter.
reject_var $primary, "'$primary' is an anachronism"
unless $primary eq 'JAVA' || $primary eq 'PYTHON';
# Get the prefixes which are valid and actually used.
@prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
# If a primary includes a configure substitution, then the EXTRA_
# form is required. Otherwise we can't properly do our job.
my $require_extra;
my @used = ();
my @result = ();
foreach my $X (@prefix)
{
my $nodir_name = $X;
my $one_name = $X . '_' . $primary;
my $one_var = var $one_name;
my $strip_subdir = 1;
# If subdir prefix should be preserved, do so.
if ($nodir_name =~ /^nobase_/)
{
$strip_subdir = 0;
$nodir_name =~ s/^nobase_//;
}
# If files should be distributed, do so.
my $dist_p = 0;
if ($can_dist)
{
$dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
|| (! $default_dist && $nodir_name =~ /^dist_/));
$nodir_name =~ s/^(dist|nodist)_//;
}
# Use the location of the currently processed variable.
# We are not processing a particular condition, so pick the first
# available.
my $tmpcond = $one_var->conditions->one_cond;
my $where = $one_var->rdef ($tmpcond)->location->clone;
# Append actual contents of where_PRIMARY variable to
# @result, skipping @substitutions@.
foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
{
my ($loc, $value) = @$locvals;
# Skip configure substitutions.
if ($value =~ /^\@.*\@$/)
{
if ($nodir_name eq 'EXTRA')
{
error ($where,
"'$one_name' contains configure substitution, "
. "but shouldn't");
}
# Check here to make sure variables defined in
# configure.ac do not imply that EXTRA_PRIMARY
# must be defined.
elsif (! defined $configure_vars{$one_name})
{
$require_extra = $one_name
if $do_require;
}
}
else
{
# Strip any $(EXEEXT) suffix the user might have added,
# or this will confuse handle_source_transform() and
# check_canonical_spelling().
# We'll add $(EXEEXT) back later anyway.
# Do it here rather than in handle_programs so the
# uniquifying at the end of this function works.
${$locvals}[1] =~ s/\$\(EXEEXT\)$//
if $primary eq 'PROGRAMS';
push (@result, $locvals);
}
}
# A blatant hack: we rewrite each _PROGRAMS primary to include
# EXEEXT.
append_exeext { 1 } $one_name
if $primary eq 'PROGRAMS';
# "EXTRA" shouldn't be used when generating clean targets,
# all, or install targets. We used to warn if EXTRA_FOO was
# defined uselessly, but this was annoying.
next
if $nodir_name eq 'EXTRA';
if ($nodir_name eq 'check')
{
push (@check, '$(' . $one_name . ')');
}
else
{
push (@used, '$(' . $one_name . ')');
}
# Is this to be installed?
my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
# If so, with install-exec? (or install-data?).
my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
my $check_options_p = $install_p && !! option 'std-options';
# Use the location of the currently processed variable as context.
$where->push_context ("while processing '$one_name'");
# The variable containing all files to distribute.
my $distvar = "\$($one_name)";
$distvar = shadow_unconditionally ($one_name, $where)
if ($dist_p && $one_var->has_conditional_contents);
# Singular form of $PRIMARY.
(my $one_primary = $primary) =~ s/S$//;
$output_rules .= file_contents ($file, $where,
PRIMARY => $primary,
ONE_PRIMARY => $one_primary,
DIR => $X,
NDIR => $nodir_name,
BASE => $strip_subdir,
EXEC => $exec_p,
INSTALL => $install_p,
DIST => $dist_p,
DISTVAR => $distvar,
'CK-OPTS' => $check_options_p);
}
# The JAVA variable is used as the name of the Java interpreter.
# The PYTHON variable is used as the name of the Python interpreter.
if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
{
# Define it.
define_pretty_variable ($primary, TRUE, INTERNAL, @used);
$output_vars .= "\n";
}
err_var ($require_extra,
"'$require_extra' contains configure substitution,\n"
. "but 'EXTRA_$primary' not defined")
if ($require_extra && ! var ('EXTRA_' . $primary));
# Push here because PRIMARY might be configure time determined.
push (@all, '$(' . $primary . ')')
if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
# Make the result unique. This lets the user use conditionals in
# a natural way, but still lets us program lazily -- we don't have
# to worry about handling a particular object more than once.
# We will keep only one location per object.
my %result = ();
for my $pair (@result)
{
my ($loc, $val) = @$pair;
$result{$val} = $loc;
}
my @l = sort keys %result;
return map { [$result{$_}->clone, $_] } @l;
}
################################################################
# Each key in this hash is the name of a directory holding a
# Makefile.in. These variables are local to 'is_make_dir'.
my %make_dirs = ();
my $make_dirs_set = 0;
# is_make_dir ($DIRECTORY)
# ------------------------
sub is_make_dir
{
my ($dir) = @_;
if (! $make_dirs_set)
{
foreach my $iter (@configure_input_files)
{
$make_dirs{dirname ($iter)} = 1;
}
# We also want to notice Makefile.in's.
foreach my $iter (@other_input_files)
{
if ($iter =~ /Makefile\.in$/)
{
$make_dirs{dirname ($iter)} = 1;
}
}
$make_dirs_set = 1;
}
return defined $make_dirs{$dir};
}
################################################################
# Find the aux dir. This should match the algorithm used by
# ./configure. (See the Autoconf documentation for for
# AC_CONFIG_AUX_DIR.)
sub locate_aux_dir ()
{
if (! $config_aux_dir_set_in_configure_ac)
{
# The default auxiliary directory is the first
# of ., .., or ../.. that contains install-sh.
# Assume . if install-sh doesn't exist yet.
for my $dir (qw (. .. ../..))
{
if (-f "$dir/install-sh")
{
$config_aux_dir = $dir;
last;
}
}
$config_aux_dir = '.' unless $config_aux_dir;
}
# Avoid unsightly '/.'s.
$am_config_aux_dir =
'$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
$am_config_aux_dir =~ s,/*$,,;
}
# push_required_file ($DIR, $FILE, $FULLFILE)
# -------------------------------------------
# Push the given file onto DIST_COMMON.
sub push_required_file
{
my ($dir, $file, $fullfile) = @_;
# If the file to be distributed is in the same directory of the
# currently processed Makefile.am, then we want to distribute it
# from this same Makefile.am.
if ($dir eq $relative_dir)
{
push_dist_common ($file);
}
# This is needed to allow a construct in a non-top-level Makefile.am
# to require a file in the build-aux directory (see at least the test
# script 'test-driver-is-distributed.sh'). This is related to the
# automake bug#9546. Note that the use of $config_aux_dir instead
# of $am_config_aux_dir here is deliberate and necessary.
elsif ($dir eq $config_aux_dir)
{
push_dist_common ("$am_config_aux_dir/$file");
}
# FIXME: another spacial case, for AC_LIBOBJ/AC_LIBSOURCE support.
# We probably need some refactoring of this function and its callers,
# to have a more explicit and systematic handling of all the special
# cases; but, since there are only two of them, this is low-priority
# ATM.
elsif ($config_libobj_dir && $dir eq $config_libobj_dir)
{
# Avoid unsightly '/.'s.
my $am_config_libobj_dir =
'$(top_srcdir)' .
($config_libobj_dir eq '.' ? "" : "/$config_libobj_dir");
$am_config_libobj_dir =~ s|/*$||;
push_dist_common ("$am_config_libobj_dir/$file");
}
elsif ($relative_dir eq '.' && ! is_make_dir ($dir))
{
# If we are doing the topmost directory, and the file is in a
# subdir which does not have a Makefile, then we distribute it
# here.
# If a required file is above the source tree, it is important
# to prefix it with '$(srcdir)' so that no VPATH search is
# performed. Otherwise problems occur with Make implementations
# that rewrite and simplify rules whose dependencies are found in a
# VPATH location. Here is an example with OSF1/Tru64 Make.
#
# % cat Makefile
# VPATH = sub
# distdir: ../a
# echo ../a
# % ls
# Makefile a
# % make
# echo a
# a
#
# Dependency '../a' was found in 'sub/../a', but this make
# implementation simplified it as 'a'. (Note that the sub/
# directory does not even exist.)
#
# This kind of VPATH rewriting seems hard to cancel. The
# distdir.am hack against VPATH rewriting works only when no
# simplification is done, i.e., for dependencies which are in
# subdirectories, not in enclosing directories. Hence, in
# the latter case we use a full path to make sure no VPATH
# search occurs.
$fullfile = '$(srcdir)/' . $fullfile
if $dir =~ m,^\.\.(?:$|/),;
push_dist_common ($fullfile);
}
else
{
prog_error "a Makefile in relative directory $relative_dir " .
"can't add files in directory $dir to DIST_COMMON";
}
}
# If a file name appears as a key in this hash, then it has already
# been checked for. This allows us not to report the same error more
# than once.
my %required_file_not_found = ();
# required_file_check_or_copy ($WHERE, $DIRECTORY, $FILE)
# -------------------------------------------------------
# Verify that the file must exist in $DIRECTORY, or install it.
sub required_file_check_or_copy
{
my ($where, $dir, $file) = @_;
my $fullfile = "$dir/$file";
my $found_it = 0;
my $dangling_sym = 0;
if (-l $fullfile && ! -f $fullfile)
{
$dangling_sym = 1;
}
elsif (dir_has_case_matching_file ($dir, $file))
{
$found_it = 1;
}
# '--force-missing' only has an effect if '--add-missing' is
# specified.
return
if $found_it && (! $add_missing || ! $force_missing);
# If we've already looked for it, we're done. You might wonder why we
# don't do this before searching for the file. If we do that, then
# something like AC_OUTPUT([subdir/foo foo]) will fail to put 'foo.in'
# into $(DIST_COMMON).
if (! $found_it)
{
return if defined $required_file_not_found{$fullfile};
$required_file_not_found{$fullfile} = 1;
}
if ($dangling_sym && $add_missing)
{
unlink ($fullfile);
}
my $trailer = '';
my $trailer2 = '';
my $suppress = 0;
# Only install missing files according to our desired
# strictness level.
my $message = "required file '$fullfile' not found";
if ($add_missing)
{
if (-f "$libdir/$file")
{
$suppress = 1;
# Install the missing file. Symlink if we
# can, copy if we must. Note: delete the file
# first, in case it is a dangling symlink.
$message = "installing '$fullfile'";
# The license file should not be volatile.
if ($file eq "COPYING")
{
$message .= " using GNU General Public License v3 file";
$trailer2 = "\n Consider adding the COPYING file"
. " to the version control system"
. "\n for your code, to avoid questions"
. " about which license your project uses";
}
# Windows Perl will hang if we try to delete a
# file that doesn't exist.
unlink ($fullfile) if -f $fullfile;
if ($symlink_exists && ! $copy_missing)
{
if (! symlink ("$libdir/$file", $fullfile)
|| ! -e $fullfile)
{
$suppress = 0;
$trailer = "; error while making link: $!";
}
}
elsif (system ('cp', "$libdir/$file", $fullfile))
{
$suppress = 0;
$trailer = "\n error while copying";
}
set_dir_cache_file ($dir, $file);
}
}
else
{
$trailer = "\n 'automake --add-missing' can install '$file'"
if -f "$libdir/$file";
}
# If --force-missing was specified, and we have
# actually found the file, then do nothing.
return
if $found_it && $force_missing;
# If we couldn't install the file, but it is a target in
# the Makefile, don't print anything. This allows files
# like README, AUTHORS, or THANKS to be generated.
return
if !$suppress && rule $file;
msg ($suppress ? 'note' : 'error', $where, "$message$trailer$trailer2");
}
# require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, $QUEUE, @FILES)
# ---------------------------------------------------------------------
# Verify that the file must exist in $DIRECTORY, or install it.
# $MYSTRICT is the strictness level at which this file becomes required.
# Worker threads may queue up the action to be serialized by the master,
# if $QUEUE is true
sub require_file_internal
{
my ($where, $mystrict, $dir, $queue, @files) = @_;
return
unless $strictness >= $mystrict;
foreach my $file (@files)
{
push_required_file ($dir, $file, "$dir/$file");
if ($queue)
{
queue_required_file_check_or_copy ($required_conf_file_queue,
QUEUE_CONF_FILE, $relative_dir,
$where, $mystrict, @files);
}
else
{
required_file_check_or_copy ($where, $dir, $file);
}
}
}
# require_file ($WHERE, $MYSTRICT, @FILES)
# ----------------------------------------
sub require_file
{
my ($where, $mystrict, @files) = @_;
require_file_internal ($where, $mystrict, $relative_dir, 0, @files);
}
# require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
# ----------------------------------------------------------
sub require_file_with_macro
{
my ($cond, $macro, $mystrict, @files) = @_;
$macro = rvar ($macro) unless ref $macro;
require_file ($macro->rdef ($cond)->location, $mystrict, @files);
}
# require_libsource_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
# ---------------------------------------------------------------
# Require an AC_LIBSOURCEd file. If AC_CONFIG_LIBOBJ_DIR was called, it
# must be in that directory. Otherwise expect it in the current directory.
sub require_libsource_with_macro
{
my ($cond, $macro, $mystrict, @files) = @_;
$macro = rvar ($macro) unless ref $macro;
if ($config_libobj_dir)
{
require_file_internal ($macro->rdef ($cond)->location, $mystrict,
$config_libobj_dir, 0, @files);
}
else
{
require_file ($macro->rdef ($cond)->location, $mystrict, @files);
}
}
# queue_required_file_check_or_copy ($QUEUE, $KEY, $DIR, $WHERE,
# $MYSTRICT, @FILES)
# --------------------------------------------------------------
sub queue_required_file_check_or_copy
{
my ($queue, $key, $dir, $where, $mystrict, @files) = @_;
my @serial_loc;
if (ref $where)
{
@serial_loc = (QUEUE_LOCATION, $where->serialize ());
}
else
{
@serial_loc = (QUEUE_STRING, $where);
}
$queue->enqueue ($key, $dir, @serial_loc, $mystrict, 0 + @files, @files);
}
# require_queued_file_check_or_copy ($QUEUE)
# ------------------------------------------
sub require_queued_file_check_or_copy
{
my ($queue) = @_;
my $where;
my $dir = $queue->dequeue ();
my $loc_key = $queue->dequeue ();
if ($loc_key eq QUEUE_LOCATION)
{
$where = Automake::Location::deserialize ($queue);
}
elsif ($loc_key eq QUEUE_STRING)
{
$where = $queue->dequeue ();
}
else
{
prog_error "unexpected key $loc_key";
}
my $mystrict = $queue->dequeue ();
my $nfiles = $queue->dequeue ();
my @files;
push @files, $queue->dequeue ()
foreach (1 .. $nfiles);
return
unless $strictness >= $mystrict;
foreach my $file (@files)
{
required_file_check_or_copy ($where, $config_aux_dir, $file);
}
}
# require_conf_file ($WHERE, $MYSTRICT, @FILES)
# ---------------------------------------------
# Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
sub require_conf_file
{
my ($where, $mystrict, @files) = @_;
my $queue = defined $required_conf_file_queue ? 1 : 0;
require_file_internal ($where, $mystrict, $config_aux_dir,
$queue, @files);
}
# require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
# ---------------------------------------------------------------
sub require_conf_file_with_macro
{
my ($cond, $macro, $mystrict, @files) = @_;
require_conf_file (rvar ($macro)->rdef ($cond)->location,
$mystrict, @files);
}
################################################################
# require_build_directory ($DIRECTORY)
# ------------------------------------
# Emit rules to create $DIRECTORY if needed, and return
# the file that any target requiring this directory should be made
# dependent upon.
# We don't want to emit the rule twice, and want to reuse it
# for directories with equivalent names (e.g., 'foo/bar' and './foo//bar').
sub require_build_directory
{
my $directory = shift;
return $directory_map{$directory} if exists $directory_map{$directory};
my $cdir = File::Spec->canonpath ($directory);
if (exists $directory_map{$cdir})
{
my $stamp = $directory_map{$cdir};
$directory_map{$directory} = $stamp;
return $stamp;
}
my $dirstamp = "$cdir/\$(am__dirstamp)";
$directory_map{$directory} = $dirstamp;
$directory_map{$cdir} = $dirstamp;
# Set a variable for the dirstamp basename.
define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
'$(am__leading_dot)dirstamp');
# Directory must be removed by 'make distclean'.
$clean_files{$dirstamp} = DIST_CLEAN;
$output_rules .= ("$dirstamp:\n"
. "\t\@\$(MKDIR_P) $directory\n"
. "\t\@: > $dirstamp\n");
return $dirstamp;
}
# require_build_directory_maybe ($FILE)
# -------------------------------------
# If $FILE lies in a subdirectory, emit a rule to create this
# directory and return the file that $FILE should be made
# dependent upon. Otherwise, just return the empty string.
sub require_build_directory_maybe
{
my $file = shift;
my $directory = dirname ($file);
if ($directory ne '.')
{
return require_build_directory ($directory);
}
else
{
return '';
}
}
################################################################
# Push a list of files onto '@dist_common'.
sub push_dist_common
{
prog_error "push_dist_common run after handle_dist"
if $handle_dist_run;
push @dist_common, @_;
}
################################################################
# generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
# ----------------------------------------------
# Generate a Makefile.in given the name of the corresponding Makefile and
# the name of the file output by config.status.
sub generate_makefile
{
my ($makefile_am, $makefile_in) = @_;
# Reset all the Makefile.am related variables.
initialize_per_input;
# AUTOMAKE_OPTIONS can contains -W flags to disable or enable
# warnings for this file. So hold any warning issued before
# we have processed AUTOMAKE_OPTIONS.
buffer_messages ('warning');
# $OUTPUT is encoded. If it contains a ":" then the first element
# is the real output file, and all remaining elements are input
# files. We don't scan or otherwise deal with these input files,
# other than to mark them as dependencies. See the subroutine
# 'scan_autoconf_files' for details.
my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
$relative_dir = dirname ($makefile);
read_main_am_file ($makefile_am, $makefile_in);
if (not handle_options)
{
# Process buffered warnings.
flush_messages;
# Fatal error. Just return, so we can continue with next file.
return;
}
# Process buffered warnings.
flush_messages;
# There are a few install-related variables that you should not define.
foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
{
my $v = var $var;
if ($v)
{
my $def = $v->def (TRUE);
prog_error "$var not defined in condition TRUE"
unless $def;
reject_var $var, "'$var' should not be defined"
if $def->owner != VAR_AUTOMAKE;
}
}
# Catch some obsolete variables.
msg_var ('obsolete', 'INCLUDES',
"'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')")
if var ('INCLUDES');
# Must do this after reading .am file.
define_variable ('subdir', $relative_dir, INTERNAL);
# If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
# recursive rules are enabled.
define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
# Check first, because we might modify some state.
check_gnu_standards;
check_gnits_standards;
handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
handle_gettext;
handle_targets;
handle_libraries;
handle_ltlibraries;
handle_programs;
handle_scripts;
handle_silent;
# These must be run after all the sources are scanned. They use
# variables defined by handle_libraries(), handle_ltlibraries(),
# or handle_programs().
handle_compile;
handle_languages;
handle_libtool;
# Variables used by distdir.am and tags.am.
define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
if (! option 'no-dist')
{
define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
}
handle_texinfo;
handle_emacs_lisp;
handle_python;
handle_java;
handle_man_pages;
handle_data;
handle_headers;
handle_subdirs;
handle_user_recursion;
handle_tags;
handle_minor_options;
# Must come after handle_programs so that %known_programs is up-to-date.
handle_tests;
# This must come after most other rules.
handle_dist;
handle_footer;
do_check_merge_target;
handle_all ($makefile);
# FIXME: Gross!
if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
{
$output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
}
if (var ('nobase_lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
{
$output_rules .= "install-binPROGRAMS: install-nobase_libLTLIBRARIES\n\n";
}
handle_install;
handle_clean ($makefile);
handle_factored_dependencies;
# Comes last, because all the above procedures may have
# defined or overridden variables.
$output_vars .= output_variables;
check_typos;
if ($exit_code != 0)
{
verb "not writing $makefile_in because of earlier errors";
return;
}
my $am_relative_dir = dirname ($makefile_am);
mkdir ($am_relative_dir, 0755) if ! -d $am_relative_dir;
# We make sure that 'all:' is the first target.
my $output =
"$output_vars$output_all$output_header$output_rules$output_trailer";
# Decide whether we must update the output file or not.
# We have to update in the following situations.
# * $force_generation is set.
# * any of the output dependencies is younger than the output
# * the contents of the output is different (this can happen
# if the project has been populated with a file listed in
# @common_files since the last run).
# Output's dependencies are split in two sets:
# * dependencies which are also configure dependencies
# These do not change between each Makefile.am
# * other dependencies, specific to the Makefile.am being processed
# (such as the Makefile.am itself, or any Makefile fragment
# it includes).
my $timestamp = mtime $makefile_in;
if (! $force_generation
&& $configure_deps_greatest_timestamp < $timestamp
&& $output_deps_greatest_timestamp < $timestamp
&& $output eq contents ($makefile_in))
{
verb "$makefile_in unchanged";
# No need to update.
return;
}
if (-e $makefile_in)
{
unlink ($makefile_in)
or fatal "cannot remove $makefile_in: $!";
}
my $gm_file = new Automake::XFile "> $makefile_in";
verb "creating $makefile_in";
print $gm_file $output;
}
################################################################
# Helper function for usage().
sub print_autodist_files
{
my @lcomm = uniq (sort @_);
my @four;
format USAGE_FORMAT =
@<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
$four[0], $four[1], $four[2], $four[3]
.
local $~ = "USAGE_FORMAT";
my $cols = 4;
my $rows = int(@lcomm / $cols);
my $rest = @lcomm % $cols;
if ($rest)
{
$rows++;
}
else
{
$rest = $cols;
}
for (my $y = 0; $y < $rows; $y++)
{
@four = ("", "", "", "");
for (my $x = 0; $x < $cols; $x++)
{
last if $y + 1 == $rows && $x == $rest;
my $idx = (($x > $rest)
? ($rows * $rest + ($rows - 1) * ($x - $rest))
: ($rows * $x));
$idx += $y;
$four[$x] = $lcomm[$idx];
}
write;
}
}
sub usage ()
{
print "Usage: $0 [OPTION]... [Makefile]...
Generate Makefile.in for configure from Makefile.am.
Operation modes:
--help print this help, then exit
--version print version number, then exit
-v, --verbose verbosely list files processed
--no-force only update Makefile.in's that are out of date
-W, --warnings=CATEGORY report the warnings falling in CATEGORY
Dependency tracking:
-i, --ignore-deps disable dependency tracking code
--include-deps enable dependency tracking code
Flavors:
--foreign set strictness to foreign
--gnits set strictness to gnits
--gnu set strictness to gnu
Library files:
-a, --add-missing add missing standard files to package
--libdir=DIR set directory storing library files
--print-libdir print directory storing library files
-c, --copy with -a, copy missing files (default is symlink)
-f, --force-missing force update of standard files
";
Automake::ChannelDefs::usage;
print "\nFiles automatically distributed if found " .
"(always):\n";
print_autodist_files @common_files;
print "\nFiles automatically distributed if found " .
"(under certain conditions):\n";
print_autodist_files @common_sometimes;
print '
Report bugs to <@PACKAGE_BUGREPORT@>.
GNU Automake home page: <@PACKAGE_URL@>.
General help using GNU software: .
';
# --help always returns 0 per GNU standards.
exit 0;
}
sub version ()
{
print <
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Tom Tromey
and Alexandre Duret-Lutz .
EOF
# --version always returns 0 per GNU standards.
exit 0;
}
################################################################
# Parse command line.
sub parse_arguments ()
{
my $strict = 'gnu';
my $ignore_deps = 0;
my @warnings = ();
my %cli_options =
(
'version' => \&version,
'help' => \&usage,
'libdir=s' => \$libdir,
'print-libdir' => sub { print "$libdir\n"; exit 0; },
'gnu' => sub { $strict = 'gnu'; },
'gnits' => sub { $strict = 'gnits'; },
'foreign' => sub { $strict = 'foreign'; },
'include-deps' => sub { $ignore_deps = 0; },
'i|ignore-deps' => sub { $ignore_deps = 1; },
'no-force' => sub { $force_generation = 0; },
'f|force-missing' => \$force_missing,
'a|add-missing' => \$add_missing,
'c|copy' => \$copy_missing,
'v|verbose' => sub { setup_channel 'verb', silent => 0; },
'W|warnings=s' => \@warnings,
);
use Automake::Getopt ();
Automake::Getopt::parse_options %cli_options;
set_strictness ($strict);
my $cli_where = new Automake::Location;
set_global_option ('no-dependencies', $cli_where) if $ignore_deps;
for my $warning (@warnings)
{
parse_warnings ('-W', $warning);
}
return unless @ARGV;
my $errspec = 0;
foreach my $arg (@ARGV)
{
fatal ("empty argument\nTry '$0 --help' for more information")
if ($arg eq '');
# Handle $local:$input syntax.
my ($local, @rest) = split (/:/, $arg);
@rest = ("$local.in",) unless @rest;
my $input = locate_am @rest;
if ($input)
{
push @input_files, $input;
$output_files{$input} = join (':', ($local, @rest));
}
else
{
error "no Automake input file found for '$arg'";
$errspec = 1;
}
}
fatal "no input file found among supplied arguments"
if $errspec && ! @input_files;
}
# handle_makefile ($MAKEFILE)
# ---------------------------
sub handle_makefile
{
my ($file) = @_;
($am_file = $file) =~ s/\.in$//;
if (! -f ($am_file . '.am'))
{
error "'$am_file.am' does not exist";
}
else
{
# Any warning setting now local to this Makefile.am.
dup_channel_setup;
generate_makefile ($am_file . '.am', $file);
# Back out any warning setting.
drop_channel_setup;
}
}
# Deal with all makefiles, without threads.
sub handle_makefiles_serial ()
{
foreach my $file (@input_files)
{
handle_makefile ($file);
}
}
# Logic for deciding how many worker threads to use.
sub get_number_of_threads ()
{
my $nthreads = $ENV{'AUTOMAKE_JOBS'} || 0;
$nthreads = 0
unless $nthreads =~ /^[0-9]+$/;
# It doesn't make sense to use more threads than makefiles,
my $max_threads = @input_files;
if ($nthreads > $max_threads)
{
$nthreads = $max_threads;
}
return $nthreads;
}
# handle_makefiles_threaded ($NTHREADS)
# -------------------------------------
# Deal with all makefiles, using threads. The general strategy is to
# spawn NTHREADS worker threads, dispatch makefiles to them, and let the
# worker threads push back everything that needs serialization:
# * warning and (normal) error messages, for stable stderr output
# order and content (avoiding duplicates, for example),
# * races when installing aux files (and respective messages),
# * races when collecting aux files for distribution.
#
# The latter requires that the makefile that deals with the aux dir
# files be handled last, done by the master thread.
sub handle_makefiles_threaded
{
my ($nthreads) = @_;
# The file queue distributes all makefiles, the message queues
# collect all serializations needed for respective files.
my $file_queue = Thread::Queue->new;
my %msg_queues;
foreach my $file (@input_files)
{
$msg_queues{$file} = Thread::Queue->new;
}
verb "spawning $nthreads worker threads";
my @threads = (1 .. $nthreads);
foreach my $t (@threads)
{
$t = threads->new (sub
{
while (my $file = $file_queue->dequeue)
{
verb "handling $file";
my $queue = $msg_queues{$file};
setup_channel_queue ($queue, QUEUE_MESSAGE);
$required_conf_file_queue = $queue;
handle_makefile ($file);
$queue->enqueue (undef);
setup_channel_queue (undef, undef);
$required_conf_file_queue = undef;
}
return $exit_code;
});
}
# Queue all makefiles.
verb "queuing " . @input_files . " input files";
$file_queue->enqueue (@input_files, (undef) x @threads);
# Collect and process serializations.
foreach my $file (@input_files)
{
verb "dequeuing messages for " . $file;
reset_local_duplicates ();
my $queue = $msg_queues{$file};
while (my $key = $queue->dequeue)
{
if ($key eq QUEUE_MESSAGE)
{
pop_channel_queue ($queue);
}
elsif ($key eq QUEUE_CONF_FILE)
{
require_queued_file_check_or_copy ($queue);
}
else
{
prog_error "unexpected key $key";
}
}
}
foreach my $t (@threads)
{
my @exit_thread = $t->join;
$exit_code = $exit_thread[0]
if ($exit_thread[0] > $exit_code);
}
}
################################################################
# Parse the WARNINGS environment variable.
parse_WARNINGS;
# Parse command line.
parse_arguments;
$configure_ac = require_configure_ac;
# Do configure.ac scan only once.
scan_autoconf_files;
if (! @input_files)
{
my $msg = '';
$msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
if -f 'Makefile.am';
fatal ("no 'Makefile.am' found for any configure output$msg");
}
my $nthreads = get_number_of_threads ();
if ($perl_threads && $nthreads >= 1)
{
handle_makefiles_threaded ($nthreads);
}
else
{
handle_makefiles_serial ();
}
exit $exit_code;