| # memrchr.m4 serial 10 |
| dnl Copyright (C) 2002-2003, 2005-2007, 2009-2021 Free Software Foundation, |
| dnl Inc. |
| dnl This file is free software; the Free Software Foundation |
| dnl gives unlimited permission to copy and/or distribute it, |
| dnl with or without modifications, as long as this notice is preserved. |
| |
| AC_DEFUN([gl_FUNC_MEMRCHR], |
| [ |
| dnl Persuade glibc <string.h> to declare memrchr(). |
| AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) |
| |
| AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) |
| AC_CHECK_DECLS_ONCE([memrchr]) |
| if test $ac_cv_have_decl_memrchr = no; then |
| HAVE_DECL_MEMRCHR=0 |
| fi |
| |
| AC_CHECK_FUNCS([memrchr]) |
| ]) |
| |
| # Prerequisites of lib/memrchr.c. |
| AC_DEFUN([gl_PREREQ_MEMRCHR], [:]) |
