#!@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::ChannelDefs;
use Automake::Channels;
use Automake::CondStack;
use Automake::Condition qw/TRUE FALSE/;
use Automake::ConfVars;
use Automake::Configure_ac;
use Automake::DisjConditions;
use Automake::Errors;
use Automake::End;
use Automake::File;
use Automake::FileUtils;
use Automake::General;
use Automake::Global;
use Automake::HandleConfigure;
use Automake::LangHandling;
use Automake::Language;
use Automake::Location;
use Automake::Options;
use Automake::Requires;
use Automake::Rule;
use Automake::RuleDef;
use Automake::SilentRules;
use Automake::Standards;
use Automake::Texi;
use Automake::Utils;
use Automake::VarDef;
use Automake::Variable;
use Automake::Wrap 'makefile_wrap';
use Automake::XFile;
use File::Basename;
use File::Spec;
use Carp;
## ----------------------- ##
## Subroutine prototypes. ##
## ----------------------- ##
sub check_canonical_spelling;
sub check_directories_in_var;
sub check_libobjs_sources;
sub check_trailing_slash ($\$);
sub check_typos ();
sub define_compiler_variable;
sub define_linker_variable;
sub define_objects_from_sources;
sub define_per_target_linker_variable;
sub do_check_merge_target ();
sub generate_makefile;
sub handle_ALLOCA;
sub handle_LIBOBJS;
sub handle_LIBOBJS_or_ALLOCA;
sub handle_all;
sub handle_clean;
sub handle_compile ();
sub handle_data ();
sub handle_dist ();
sub handle_factored_dependencies ();
sub handle_footer ();
sub handle_gettext ();
sub handle_headers ();
sub handle_install ();
sub handle_languages ();
sub handle_lib_objects;
sub handle_libraries ();
sub handle_libtool ();
sub handle_ltlibraries ();
sub handle_makefile;
sub handle_makefiles_serial ();
sub handle_makefiles_threaded;
sub handle_man_pages ();
sub handle_minor_options ();
sub handle_options ();
sub handle_per_suffix_test;
sub handle_programs ();
sub handle_scripts ();
sub handle_single_transform;
sub handle_source_transform;
sub handle_subdirs ();
sub handle_tags ();
sub handle_targets ();
sub handle_tests ();
sub handle_tests_dejagnu ();
sub handle_user_recursion ();
sub initialize_per_input ();
sub is_valid_test_extension;
sub parse_arguments ();
sub print_autodist_files;
sub read_am_file;
sub read_main_am_file;
sub target_cmp;
sub usage ();
sub user_phony_rule;
sub version ();
################################################################
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']);
################################################################
# 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;
}
# 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 ($languages{'c'});
}
}
# Check to make sure a source defined in LIBOBJS is not explicitly
# mentioned. This is a separate function (as opposed to being inlined
# in handle_source_transform) because it isn't always appropriate to
# do this check.
sub check_libobjs_sources
{
my ($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, $var, FOREIGN, 'alloca.c');
saw_extension ('.c');
}
# Canonicalize a name, and check to make sure the non-canonical name
# is never used. Returns canonical name. Arguments are name and a
# list of suffixes to check for.
sub check_canonical_spelling
{
my ($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 $filename = "$libdir/am/compile.am";
my %transform =
(
'DEFAULT_INCLUDES' => $default_includes,
'MOSTLYRMS' => join ("\n", @mostly_rms),
'DISTRMS' => join ("\n", @dist_rms)
);
my @paragraphs = make_paragraphs (preprocess_file ($filename, %transform));
my ($coms, $vars, $rules) =
file_contents_internal (1, $filename, new Automake::Location,
\@paragraphs, %transform);
$output_rules .= "$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');
}
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 => $filename_filter);
}
# check_directories_in_var ($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!
}
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_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 $1 && -f 'README-alpha')
{
# This means we have an alpha release. See
# GNITS_VERSION_PATTERN for details.
push_dist_common ('README-alpha');
}
}
}
}
################################################################
## ------------------------ ##
## Handling the variables. ##
## ------------------------ ##
# TODO: Look for a better file for `define_verbose_libtool' to move these to
# Automake::Variable
# define_compiler_variable ($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";
}
# 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.
";
# 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, '.');
}
################################################################
# 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);
}
}
# 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;
$configure_ac = require_configure_ac;
# Do configure.ac scan only once.
scan_autoconf_files (($ENV{AUTOCONF} || '@am_AUTOCONF@') . " ");
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;