Mercurial > gnulib
view m4/sys_file_h.m4 @ 40214:452ab00796c7
Fix undefined behaviour.
* lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to
'unsigned int', to avoid shift operations on 'int'.
* lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size.
* tests/test-count-leading-zeros.c (main): Use a random number that has
as many bits as TYPE, not only 2*15 or 2*31 bits.
* tests/test-count-trailing-zeros.c (main): Likewise.
* tests/test-count-one-bits.c (main): Likewise.
* tests/test-memmem.c: Don't include "null-ptr.h".
(main): Use zerosize_ptr() instead of null_ptr().
* modules/memmem-tests (Files): Remove tests/null-ptr.h.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 20:32:25 +0100 |
parents | b06060465f09 |
children |
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# Configure a replacement for <sys/file.h>. # serial 6 # Copyright (C) 2008-2019 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. # Written by Richard W.M. Jones. AC_DEFUN([gl_HEADER_SYS_FILE_H], [ AC_REQUIRE([gl_HEADER_SYS_FILE_H_DEFAULTS]) dnl <sys/file.h> is always overridden, because of GNULIB_POSIXCHECK. gl_CHECK_NEXT_HEADERS([sys/file.h]) if test $ac_cv_header_sys_file_h = yes; then HAVE_SYS_FILE_H=1 else HAVE_SYS_FILE_H=0 fi AC_SUBST([HAVE_SYS_FILE_H]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[#include <sys/file.h> ]], [flock]) ]) AC_DEFUN([gl_HEADER_SYS_FILE_MODULE_INDICATOR], [ AC_REQUIRE([gl_HEADER_SYS_FILE_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) ]) AC_DEFUN([gl_HEADER_SYS_FILE_H_DEFAULTS], [ GNULIB_FLOCK=0; AC_SUBST([GNULIB_FLOCK]) HAVE_FLOCK=1; AC_SUBST([HAVE_FLOCK]) ])