| # strnlen.m4 serial 12 |
| dnl Copyright (C) 2002-2003, 2005-2007, 2009-2010 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_STRNLEN], |
| [ |
| AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) |
| |
| dnl Persuade glibc <string.h> to declare strnlen(). |
| AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) |
| |
| AC_CHECK_DECLS_ONCE([strnlen]) |
| if test $ac_cv_have_decl_strnlen = no; then |
| HAVE_DECL_STRNLEN=0 |
| else |
| AC_FUNC_STRNLEN |
| dnl Note: AC_FUNC_STRNLEN does AC_LIBOBJ([strnlen]). |
| if test $ac_cv_func_strnlen_working = no; then |
| REPLACE_STRNLEN=1 |
| fi |
| fi |
| if test $HAVE_DECL_STRNLEN = 0 || test $REPLACE_STRNLEN = 1; then |
| AC_LIBOBJ([strnlen]) |
| gl_PREREQ_STRNLEN |
| fi |
| ]) |
| |
| # Prerequisites of lib/strnlen.c. |
| AC_DEFUN([gl_PREREQ_STRNLEN], [:]) |
