t/yflags.sh

#! /bin/sh
# Copyright (C) 2010-2024 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 that $(YFLAGS) takes precedence over both $(AM_YFLAGS) and
# $(foo_YFLAGS).
# Please keep this in sync with the sister tests:
#  - yflags-cxx.sh
#  - lflags.sh
#  - lflags-cxx.sh

. test-init.sh

cat >fake-yacc <<'END'
#!/bin/sh
echo '/*' "$*" '*/' >y.tab.c
echo 'extern int dummy;' >> y.tab.c
END
chmod a+x fake-yacc

cat >> configure.ac <<'END'
AC_SUBST([CC], [false])
# Simulate presence of Yacc using our fake-yacc script.
AC_SUBST([YACC], ['$(abs_top_srcdir)'/fake-yacc])
AC_OUTPUT
END

cat > Makefile.am <<'END'
AUTOMAKE_OPTIONS = no-dependencies
AM_LFLAGS = --never-interactive

bin_PROGRAMS = foo bar
foo_SOURCES = main.c foo.y
bar_SOURCES = main.c bar.y
AM_YFLAGS = __am_flags__
bar_YFLAGS = __bar_flags__
END

$ACLOCAL
$AUTOMAKE -a

grep '\$(YFLAGS).*\$(bar_YFLAGS)' Makefile.in && exit 1
grep '\$(YFLAGS).*\$(AM_YFLAGS)' Makefile.in && exit 1

: > foo.y
: > bar.y

$AUTOCONF
./configure
run_make YFLAGS=__user_flags__ foo.c bar-bar.c

cat foo.c
cat bar-bar.c

grep '__am_flags__.*__user_flags__' foo.c
grep '__bar_flags__.*__user_flags__' bar-bar.c

: