Mercurial > gnulib
view m4/uptime.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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# serial 8 # Copyright (C) 1996, 1999-2001, 2004, 2009-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. AC_PREREQ([2.13]) AC_DEFUN([gl_SYS_PROC_UPTIME], [ dnl Require AC_PROG_CC to see if we're cross compiling. AC_REQUIRE([AC_PROG_CC]) AC_CACHE_CHECK([for /proc/uptime], [gl_cv_have_proc_uptime], [gl_cv_have_proc_uptime=no test -f /proc/uptime \ && test "$cross_compiling" = no \ && cat < /proc/uptime >/dev/null 2>/dev/null \ && gl_cv_have_proc_uptime=yes]) if test $gl_cv_have_proc_uptime = yes; then AC_DEFINE([HAVE_PROC_UPTIME], [1], [ Define if your system has the /proc/uptime special file.]) fi ])