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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 <http://www.gnu.org/licenses/>.
# Test remake rules when a new C header "guarded" by AC_SUBST'd
# variables is added.
# This test overlaps with others, and is not strictly necessary per se,
# but it exercises a real use case (from gnulib, see:
# <http://lists.gnu.org/archive/html/bug-gnulib/2011-04/msg00005.html>
# for more info).
required=cc
. test-init.sh
cat >> configure.ac <<'END'
AC_CONFIG_HEADERS([config.h])
AC_PROG_CC
MY_MACROS
AC_OUTPUT
END
cat > Makefile.am <<'END'
ACLOCAL_AMFLAGS = -I .
noinst_PROGRAMS = foo
foo_SOURCES = foo.c
BUILT_SOURCES = $(STDIO_H)
stdio.h: stdio.in.h
cp $(srcdir)/stdio.in.h $@
MOSTLYCLEANFILES = stdio.h
EXTRA_DIST = stdio.in.h
check-local:
ls -l . $(srcdir)
if test -n '$(STDIO_H)'; then \
test -f stdio.h || exit 1; \
else \
test ! -f stdio.h || exit 1; \
fi
END
cat > macros.m4 <<'END'
AC_DEFUN([MY_MACROS], [
override_stdio=false
if $override_stdio; then
STDIO_H=stdio.h
use_dummies=1
else
STDIO_H=
use_dummies=0
fi
AC_SUBST([STDIO_H])
AC_DEFINE_UNQUOTED([USE_DUMMIES], [$use_dummies],
[Whether to use dummy types.])
])
END
cat > stdio.in.h <<'END'
typedef struct dummyfile { void *p; } DUMMYFILE;
END
cat > foo.c <<'END'
#include <config.h>
#include <stdio.h>
#if USE_DUMMIES
DUMMYFILE *f;
#else
FILE *f;
#endif
int main () { return 0; }
END
$ACLOCAL -I .
$AUTOHEADER
$AUTOMAKE
$AUTOCONF
./configure
$MAKE
ls -l
test ! -e stdio.h
# Also try our build rules in a VPATH build.
$MAKE distcheck
# No need to sleep here: "./configure" and "make distcheck" above
# have already slept enough.
sed -e 's/^\( *override_stdio\)=.*$/\1=:/' macros.m4 > t
mv -f t macros.m4
using_gmake || $MAKE Makefile
$MAKE
ls -l
test -f stdio.h
# Also try our build rules in a VPATH build.
$MAKE distcheck
:
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