m4/c-working.m4

   1 # Sanity test a C compiler.
   2
   3 # Copyright (C) 2006, 2009, 2010 Free Software Foundation, Inc.
   4 #
   5 # This program is free software: you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation, either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 # Written by Paul Eggert.
  19
  20 AC_DEFUN([BISON_TEST_FOR_WORKING_C_COMPILER], [
  21   AC_COMPILE_IFELSE(
  22     [AC_LANG_PROGRAM(
  23        [[#include <limits.h>
  24          int test_array[CHAR_BIT];]])],
  25     [],
  26     [AC_MSG_FAILURE([cannot compile a simple C program])])
  27 ])