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      1  1.1.1.2  christos # strnlen.m4 serial 14
      2  1.1.1.2  christos dnl Copyright (C) 2002-2003, 2005-2007, 2009-2022 Free Software Foundation,
      3      1.1  christos dnl Inc.
      4      1.1  christos dnl This file is free software; the Free Software Foundation
      5      1.1  christos dnl gives unlimited permission to copy and/or distribute it,
      6      1.1  christos dnl with or without modifications, as long as this notice is preserved.
      7      1.1  christos 
      8      1.1  christos AC_DEFUN([gl_FUNC_STRNLEN],
      9      1.1  christos [
     10  1.1.1.2  christos   AC_REQUIRE([gl_STRING_H_DEFAULTS])
     11      1.1  christos 
     12      1.1  christos   dnl Persuade glibc <string.h> to declare strnlen().
     13      1.1  christos   AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
     14      1.1  christos 
     15      1.1  christos   AC_CHECK_DECLS_ONCE([strnlen])
     16      1.1  christos   if test $ac_cv_have_decl_strnlen = no; then
     17      1.1  christos     HAVE_DECL_STRNLEN=0
     18      1.1  christos   else
     19      1.1  christos     m4_pushdef([AC_LIBOBJ], [:])
     20      1.1  christos     dnl Note: AC_FUNC_STRNLEN does AC_LIBOBJ([strnlen]).
     21      1.1  christos     AC_FUNC_STRNLEN
     22      1.1  christos     m4_popdef([AC_LIBOBJ])
     23      1.1  christos     if test $ac_cv_func_strnlen_working = no; then
     24      1.1  christos       REPLACE_STRNLEN=1
     25      1.1  christos     fi
     26      1.1  christos   fi
     27      1.1  christos ])
     28      1.1  christos 
     29      1.1  christos # Prerequisites of lib/strnlen.c.
     30      1.1  christos AC_DEFUN([gl_PREREQ_STRNLEN], [:])
     31