source: vendor/automake/1.8.5/tests/ansi6.test

#! /bin/sh
# Copyright (C) 2002  Free Software Foundation, Inc.
#
# This file is part of GNU Automake.
#
# GNU Automake 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.
#
# GNU Automake 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 Automake; see the file COPYING.  If not, write to
# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.

# Check ansi2knr on a source file in subdirectory.
# From Kevin Ryde.

required=gcc
. ./defs || exit 1

cat > configure.in << 'END'
AC_INIT(ansi6, 1.0)
AM_INIT_AUTOMAKE
AC_PROG_CC
AM_C_PROTOTYPES
AC_EXEEXT
AC_OBJEXT
AC_CONFIG_FILES(Makefile)
AC_OUTPUT
END

cat > Makefile.am << 'END'
AUTOMAKE_OPTIONS = ansi2knr
bin_PROGRAMS = hello
hello_SOURCES = hello.c sub/dir.c
END

cat > hello.c << 'END'
#include <stdio.h>

extern int foo ();

int
main (int argc, char **argv)
{
   printf ("%d\n", foo ());
}
END

mkdir sub

cat > sub/dir.c << 'END'
int
foo ()
{
   return 23;
}
END

set -e

$ACLOCAL
$AUTOCONF
$AUTOMAKE -a

# Sanity check: make sure it's ok to set ac_cv_prog_cc_stdc as we do.
grep ac_cv_prog_cc_stdc configure

./configure ac_cv_prog_cc_stdc=no
$MAKE

test -f hello_.c
test -f dir_.c                  # Must be in current directory.
test ! -f sub/dir_.c
$MAKE distclean
test ! -f hello_.c
test ! -f dir_.c

# Also run without forcing ansi2knr, so we make sure the
# rules work with ANSI compilers.
# Report from Andreas Schwab.

./configure
$MAKE