diff options
Diffstat (limited to 'lib/glthread/lock.h')
| -rw-r--r-- | lib/glthread/lock.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/lib/glthread/lock.h b/lib/glthread/lock.h index 06285558..ffb2b0e5 100644 --- a/lib/glthread/lock.h +++ b/lib/glthread/lock.h @@ -1,5 +1,5 @@ /* Locking in multithreaded situations. - Copyright (C) 2005-2017 Free Software Foundation, Inc. + Copyright (C) 2005-2018 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of either: @@ -158,8 +158,18 @@ extern int glthread_in_use (void); # endif # if !PTHREAD_IN_USE_DETECTION_HARD -# pragma weak pthread_cancel -# define pthread_in_use() (pthread_cancel != NULL) + /* On most platforms, pthread_cancel or pthread_kill can be used to + determine whether libpthread is in use. + On newer versions of FreeBSD, however, this is no longer possible, + because pthread_cancel and pthread_kill got added to libc. Therefore + use pthread_create to test whether libpthread is in use. */ +# if defined __FreeBSD__ || defined __DragonFly__ /* FreeBSD */ +# pragma weak pthread_create +# define pthread_in_use() (pthread_create != NULL) +# else /* glibc, NetBSD, OpenBSD, IRIX, OSF/1, Solaris */ +# pragma weak pthread_cancel +# define pthread_in_use() (pthread_cancel != NULL) +# endif # endif # else |