1# memrchr.m4 serial 11 2dnl Copyright (C) 2002-2003, 2005-2007, 2009-2022 Free Software Foundation, 3dnl Inc. 4dnl This file is free software; the Free Software Foundation 5dnl gives unlimited permission to copy and/or distribute it, 6dnl with or without modifications, as long as this notice is preserved. 7 8AC_DEFUN([gl_FUNC_MEMRCHR], 9[ 10 dnl Persuade glibc <string.h> to declare memrchr(). 11 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) 12 13 AC_REQUIRE([gl_STRING_H_DEFAULTS]) 14 AC_CHECK_DECLS_ONCE([memrchr]) 15 if test $ac_cv_have_decl_memrchr = no; then 16 HAVE_DECL_MEMRCHR=0 17 fi 18 19 AC_CHECK_FUNCS([memrchr]) 20]) 21 22# Prerequisites of lib/memrchr.c. 23AC_DEFUN([gl_PREREQ_MEMRCHR], [:]) 24