Mercurial > gnulib
view m4/func.m4 @ 40212:8da9577294da
unistr/*, uniconv/*: Fix undefined behaviour.
Reported by Jeffrey Walton <noloader@gmail.com>.
* lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size.
* lib/unistr/u-cpy-alloc.h (FUNC): Likewise.
* lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise.
* lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 00:01:47 +0100 |
parents | b06060465f09 |
children |
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# func.m4 serial 2 dnl Copyright (C) 2008-2019 Free Software Foundation, 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. # Written by Simon Josefsson AC_DEFUN([gl_FUNC], [ AC_CACHE_CHECK([whether __func__ is available], [gl_cv_var_func], AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[]], [[const char *str = __func__;]])], [gl_cv_var_func=yes], [gl_cv_var_func=no])) if test "$gl_cv_var_func" != yes; then AC_DEFINE([__func__], ["<unknown function>"], [Define as a replacement for the ISO C99 __func__ variable.]) fi ])