1# memrchr.m4 serial 4 2dnl Copyright (C) 2002, 2003, 2005 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 AC_LIBSOURCES([memrchr.c, memrchr.h]) 10 11 dnl Persuade glibc <string.h> to declare memrchr(). 12 AC_REQUIRE([AC_GNU_SOURCE]) 13 14 AC_CHECK_DECLS_ONCE([memrchr]) 15 16 AC_REPLACE_FUNCS(memrchr) 17 if test $ac_cv_func_memrchr = no; then 18 gl_PREREQ_MEMRCHR 19 fi 20]) 21 22# Prerequisites of lib/memrchr.c. 23AC_DEFUN([gl_PREREQ_MEMRCHR], [:]) 24