Mercurial > gnulib
view m4/libunistring-optional.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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# libunistring-optional.m4 serial 1 dnl Copyright (C) 2010-2019 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. dnl gl_LIBUNISTRING_OPTIONAL dnl Searches for an installed libunistring or uses the included source code dnl parts. dnl If found, it sets and AC_SUBSTs HAVE_LIBUNISTRING=yes and the LIBUNISTRING dnl and LTLIBUNISTRING variables and augments the CPPFLAGS variable, and dnl #defines HAVE_LIBUNISTRING to 1. Otherwise, it sets and AC_SUBSTs dnl HAVE_LIBUNISTRING=no and LIBUNISTRING and LTLIBUNISTRING to empty. AC_DEFUN([gl_LIBUNISTRING_OPTIONAL], [ dnl gl_LIBUNISTRING does a couple of extra things if this macro is used. AC_REQUIRE([gl_LIBUNISTRING]) AC_MSG_CHECKING([whether to use the included libunistring]) AC_MSG_RESULT([$gl_libunistring_use_included]) ])