m4/memrchr.m4

   1 # memrchr.m4 serial 1
   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 AC_DEFUN([gl_FUNC_MEMRCHR],
  10 [
  11   dnl Persuade glibc <string.h> to declare memrchr().
  12   AC_REQUIRE([AC_GNU_SOURCE])
  13
  14   AC_REPLACE_FUNCS(memrchr)
  15   if test $ac_cv_func_memrchr = no; then
  16     gl_PREREQ_MEMRCHR
  17   fi
  18 ])
  19
  20 # Prerequisites of lib/memrchr.c.
  21 AC_DEFUN([gl_PREREQ_MEMRCHR], [
  22   AC_CHECK_HEADERS_ONCE(limits.h)
  23 ])