Issue 10062: Python 3.2 does not build on systems which do not have sem_timedwait

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This issue has been migrated to GitHub: https://github.com/python/cpython/issues/54271

classification

Title:	Python 3.2 does not build on systems which do not have sem_timedwait
Type:	compile error	Stage:	resolved
Components:	Build	Versions:	Python 3.2

process

Status:	closed	Resolution:	fixed
Dependencies:		Superseder:
Assigned To:		Nosy List:	akitada, pitrou
Priority:	normal	Keywords:

Created on 2010-10-10 07:51 by akitada, last changed 2022-04-11 14:57 by admin. This issue is now closed.

Messages (6)
msg118315 - (view)	Author: Akira Kitada (akitada) *	Date: 2010-10-10 07:51
Build fails on FreeBSD 4 due to the lack of sem_timedwait. """ gcc -pthread -Wl,--export-dynamic -o python Modules/python.o libpython3.2.a -lutil -lm libpython3.2.a(thread.o): In function `PyThread_acquire_lock_timed': /home/akitada/src/py3k/Python/thread_pthread.h:315: undefined reference to `sem_timedwait' gmake: *** [python] Error 1 """
msg118316 - (view)	Author: Antoine Pitrou (pitrou) *	Date: 2010-10-10 08:04
What happens if you comment out "# define USE_SEMAPHORES" in Python/thread_pthread.h?
msg118317 - (view)	Author: Akira Kitada (akitada) *	Date: 2010-10-10 08:12
It works fine with USE_SEMAPHORES commented out.
msg118318 - (view)	Author: Antoine Pitrou (pitrou) *	Date: 2010-10-10 08:19
What about this patch? Index: Python/thread_pthread.h =================================================================== --- Python/thread_pthread.h (révision 85348) +++ Python/thread_pthread.h (copie de travail) @@ -64,7 +64,8 @@ /* Whether or not to use semaphores directly rather than emulating them with * mutexes and condition variables: */ -#if defined(_POSIX_SEMAPHORES) && !defined(HAVE_BROKEN_POSIX_SEMAPHORES) +#if (defined(_POSIX_SEMAPHORES) && !defined(HAVE_BROKEN_POSIX_SEMAPHORES) && \ + defined(HAVE_SEM_TIMEDWAIT)) # define USE_SEMAPHORES #else # undef USE_SEMAPHORES
msg118320 - (view)	Author: Akira Kitada (akitada) *	Date: 2010-10-10 08:27
The patch does fix the build error. Thank you!
msg118321 - (view)	Author: Antoine Pitrou (pitrou) *	Date: 2010-10-10 08:37
Patch committed in r85352, thanks.

History
Date	User	Action	Args
2022-04-11 14:57:07	admin	set	github: 54271
2010-10-10 08:37:43	pitrou	set	status: open -> closed resolution: fixed messages: + msg118321 stage: resolved
2010-10-10 08:27:39	akitada	set	messages: + msg118320
2010-10-10 08:19:30	pitrou	set	messages: + msg118318
2010-10-10 08:12:16	akitada	set	messages: + msg118317
2010-10-10 08:04:16	pitrou	set	nosy: + pitrou messages: + msg118316
2010-10-10 07:51:18	akitada	create