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#!/bin/sh
# Copyright (C) 2011-2017 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 <https://www.gnu.org/licenses/>.
# Check silent-rules mode for Yacc, when yacc-generated headers are
# involved (i.e., the '-d' option is in *YFLAGS).
required='cc yacc'
. test-init.sh
mkdir sub
cat >>configure.ac <<'EOF'
AC_PROG_YACC
AC_PROG_CC
AC_OUTPUT
EOF
cat > Makefile.am <<'EOF'
# Need generic and non-generic rules.
AM_YFLAGS = -d
bin_PROGRAMS = foo bar
foo_SOURCES = parse.y
bar_SOURCES = $(foo_SOURCES)
bar_YFLAGS = $(AM_YFLAGS)
EOF
cat > parse.y <<'EOF'
%{
void yyerror (char *s) { return; }
int yylex (void) { return 0; }
int main (void) { return 0; }
%}
%token EOF
%%
fubar : 'f' 'o' 'o' 'b' 'a' 'r' EOF {};
EOF
$ACLOCAL
$AUTOMAKE --add-missing
$AUTOCONF
# Check that the expected non-generic rules has been truly generated.
# Otherwise, the coverage offered by this test will be weaker then
# expected and planned.
$FGREP 'bar-parse.c' Makefile.in
$FGREP '$(bar_YFLAGS)' Makefile.in
./configure --enable-silent-rules
run_make -O
$EGREP ' (-c|-d|-o)' stdout && exit 1
$EGREP '(mv|ylwrap) ' stdout && exit 1
grep 'YACC *parse\.c' stdout
grep 'updating *parse\.h' stdout
grep 'YACC *bar-parse\.c' stdout
grep 'updating *bar-parse\.h' stdout
grep ' CC *parse\.' stdout
grep ' CC *bar-parse\.' stdout
grep 'CCLD *foo' stdout
grep 'CCLD *bar' stdout
# Check recovering from header removal.
rm -f parse.h bar-parse.h
run_make -O parse.h bar-parse.h
$EGREP ' (-c|-d|-o)' stdout && exit 1
$EGREP '(mv|ylwrap) ' stdout && exit 1
grep 'YACC *parse\.c' stdout
grep 'updating *parse\.h' stdout
grep 'YACC *bar-parse\.c' stdout
grep 'updating *bar-parse\.h' stdout
# Cleaning and then rebuilding with the same V flag (and without
# removing the generated sources in between) shouldn't trigger a
# different set of rules.
$MAKE clean
run_make -O
$EGREP ' (-c|-d|-o)' stdout && exit 1
$EGREP '(mv|ylwrap) ' stdout && exit 1
# Don't look for "YACC *.c" and "updating *.h", as yacc shouldn't
# have been re-run.
grep ' CC *parse\.' stdout
grep ' CC *bar-parse\.' stdout
grep 'CCLD *foo' stdout
grep 'CCLD *bar' stdout
# Check recovering from header removal.
rm -f parse.h bar-parse.h
run_make -O parse.h bar-parse.h
$EGREP ' (-c|-d|-o)' stdout && exit 1
$EGREP '(mv|ylwrap) ' stdout && exit 1
grep 'YACC *parse\.c' stdout
grep 'updating *parse\.h' stdout
grep 'YACC *bar-parse\.c' stdout
grep 'updating *bar-parse\.h' stdout
# Ensure a truly clean rebuild.
$MAKE maintainer-clean
./configure --enable-silent-rules
run_make -O V=1
grep ' -c ' stdout
grep ' -o ' stdout
grep ' -d ' stdout
grep 'ylwrap ' stdout
$EGREP '(YACC|CC|CCLD) ' stdout && exit 1
# Check recovering from header removal.
rm -f parse.h bar-parse.h
run_make -O V=1 parse.h bar-parse.h
grep ' -d ' stdout
grep 'ylwrap ' stdout
grep 'YACC' stdout && exit 1
# Cleaning and then rebuilding with the same V flag (and without
# removing the generated sources in between) shouldn't trigger a
# different set of rules.
$MAKE clean
run_make -O V=1
# Don't look for ylwrap, as probably lex hasn't been re-run.
grep ' -c ' stdout
grep ' -o ' stdout
$EGREP '(YACC|CC|CCLD) ' stdout && exit 1
# Check recovering from header removal.
rm -f parse.h bar-parse.h
run_make -O V=1 parse.h bar-parse.h
grep ' -d ' stdout
grep 'ylwrap ' stdout
grep 'YACC' stdout && exit 1
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