1# strnlen.m4 serial 9 2dnl Copyright (C) 2002-2003, 2005-2007 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_STRNLEN], 8[ 9 dnl Persuade glibc <string.h> to declare strnlen(). 10 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) 11 12 AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) 13 AC_CHECK_DECLS_ONCE([strnlen]) 14 if test $ac_cv_have_decl_strnlen = no; then 15 HAVE_DECL_STRNLEN=0 16 fi 17 18 AC_FUNC_STRNLEN 19 if test $ac_cv_func_strnlen_working = no; then 20 # This is necessary because automake-1.6.1 doesn't understand 21 # that the above use of AC_FUNC_STRNLEN means we may have to use 22 # lib/strnlen.c. 23 #AC_LIBOBJ(strnlen) 24 AC_DEFINE(strnlen, rpl_strnlen, 25 [Define to rpl_strnlen if the replacement function should be used.]) 26 gl_PREREQ_STRNLEN 27 fi 28]) 29 30# Prerequisites of lib/strnlen.c. 31AC_DEFUN([gl_PREREQ_STRNLEN], [:]) 32