1# memrchr.m4 serial 7 2dnl Copyright (C) 2002, 2003, 2005, 2006, 2007 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7AC_DEFUN([gl_FUNC_MEMRCHR], 8[ 9 dnl Persuade glibc <string.h> to declare memrchr(). 10 AC_REQUIRE([AC_GNU_SOURCE]) 11 12 AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) 13 AC_CHECK_DECLS_ONCE([memrchr]) 14 if test $ac_cv_have_decl_memrchr = no; then 15 HAVE_DECL_MEMRCHR=0 16 fi 17 18 AC_REPLACE_FUNCS(memrchr) 19 if test $ac_cv_func_memrchr = no; then 20 gl_PREREQ_MEMRCHR 21 fi 22]) 23 24# Prerequisites of lib/memrchr.c. 25AC_DEFUN([gl_PREREQ_MEMRCHR], [:]) 26