m4/malloc.m4

   1 # malloc.m4 serial 7
   2 dnl Copyright (C) 2002 Free Software Foundation, Inc.
   3 dnl This file is free software, distributed under the terms of the GNU
   4 dnl General Public License.  As a special exception to the GNU General
   5 dnl Public License, this file may be distributed as part of a program
   6 dnl that contains a configuration script generated by Autoconf, under
   7 dnl the same distribution terms as the rest of that program.
   8
   9 dnl From Jim Meyering.
  10 dnl Determine whether malloc accepts 0 as its argument.
  11 dnl If it doesn't, arrange to use the replacement function.
  12
  13 AC_DEFUN([jm_FUNC_MALLOC],
  14 [
  15   AC_REQUIRE([AC_FUNC_MALLOC])
  16   dnl autoconf < 2.57 used the symbol ac_cv_func_malloc_works.
  17   if test X"$ac_cv_func_malloc_0_nonnull" = Xno || test X"$ac_cv_func_malloc_works" = Xno; then
  18     gl_PREREQ_MALLOC
  19   fi
  20 ])
  21
  22 # Prerequisites of lib/malloc.c.
  23 AC_DEFUN([gl_PREREQ_MALLOC], [
  24   :
  25 ])