Clean up yesterday's patch.

[bison.git] / m4 / c-working.m4

# Sanity test a C compiler.

# Copyright (C) 2006 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 of the License, 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301  USA

# Written by Paul Eggert.

AC_DEFUN([BISON_TEST_FOR_WORKING_C_COMPILER], [
  AC_COMPILE_IFELSE(
    [AC_LANG_PROGRAM(
       [[#include <limits.h>
	 int test_array[CHAR_BIT];]])],
    [],
    [AC_MSG_FAILURE([cannot compile a simple C program])])
])