Mercurial > hg > octave-jordi > gnulib-hg
view tests/test-alignof.c @ 17682:68b0a0f80871
pthread_sigmask, timer-time: use gl_THREADLIB only if needed
Without this fix, Emacs would sometimes call sigprocmask instead
of pthread_sigmask, which is a no-no in multithreaded applications.
Problem reported by Jorgen Schaefer in <http://bugs.gnu.org/17561>.
* m4/pthread_sigmask.m4 (gl_FUNC_PTHREAD_SIGMASK):
Suppress check for pthread_sigmask working without -lpthread if
the application always links with -lpthread. Do not link with
$LIBMULTITHREAD if gl_THREADLIB is not defined.
* m4/timer_time.m4 (gl_TIMER_TIME):
Require gl_THREADLIB only if it is defined. Do not append
$LIBMULTITHREAD to LIB_TIMER_TIME if gl_THREADLIB is not defined.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Wed, 28 May 2014 21:04:04 -0700 |
parents | 344018b6e5d7 |
children | ab58d4870664 |
line wrap: on
line source
/* Test of <alignof.h>. Copyright (C) 2009-2014 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* Written by Bruno Haible <bruno@clisp.org>, 2009. */ #include <config.h> #include <alignof.h> #include <stddef.h> #include <stdint.h> #include "verify.h" typedef long double longdouble; typedef struct { char a[1]; } struct1; typedef struct { char a[2]; } struct2; typedef struct { char a[3]; } struct3; typedef struct { char a[4]; } struct4; #define CHECK(type) \ typedef struct { char slot1; type slot2; } type##_helper; \ verify (alignof_slot (type) == offsetof (type##_helper, slot2)); \ const int type##_slot_alignment = alignof_slot (type); \ const int type##_type_alignment = alignof_type (type); CHECK (char) CHECK (short) CHECK (int) CHECK (long) CHECK (float) CHECK (double) CHECK (longdouble) #ifdef INT64_MAX CHECK (int64_t) #endif CHECK (struct1) CHECK (struct2) CHECK (struct3) CHECK (struct4) int main () { return 0; }