1 # strnlen.m4 serial 10 2 dnl Copyright (C) 2002-2003, 2005-2007, 2009 Free Software Foundation, Inc. 3 dnl This file is free software; the Free Software Foundation 4 dnl gives unlimited permission to copy and/or distribute it, 5 dnl with or without modifications, as long as this notice is preserved. 6 7 AC_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. 31 AC_DEFUN([gl_PREREQ_STRNLEN], [:]) 32
