HCoop / bpt / guile.git / blame
| Commit | Line | Data |
|---|---|---|
| 5e69ceb7 MW |
1 | # lock.m4 serial 13 (gettext-0.18.2) |
| 2 | dnl Copyright (C) 2005-2014 Free Software Foundation, Inc. | |
| 3 | dnl This file is free software; the Free Software Foundation | |
| 4 | dnl gives unlimited permission to copy and/or distribute it, | |
| 5 | dnl with or without modifications, as long as this notice is preserved. | |
| 6 | ||
| 7 | dnl From Bruno Haible. | |
| 8 | ||
| 9 | AC_DEFUN([gl_LOCK], | |
| 10 | [ | |
| 11 | AC_REQUIRE([gl_THREADLIB]) | |
| 12 | if test "$gl_threads_api" = posix; then | |
| 13 | # OSF/1 4.0 and Mac OS X 10.1 lack the pthread_rwlock_t type and the | |
| 14 | # pthread_rwlock_* functions. | |
| 15 | AC_CHECK_TYPE([pthread_rwlock_t], | |
| 16 | [AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1], | |
| 17 | [Define if the POSIX multithreading library has read/write locks.])], | |
| 18 | [], | |
| 19 | [#include <pthread.h>]) | |
| 20 | # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro. | |
| 21 | AC_COMPILE_IFELSE([ | |
| 22 | AC_LANG_PROGRAM( | |
| 23 | [[#include <pthread.h>]], | |
| 24 | [[ | |
| 25 | #if __FreeBSD__ == 4 | |
| 26 | error "No, in FreeBSD 4.0 recursive mutexes actually don't work." | |
| 27 | #elif (defined __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ \ | |
| 28 | && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1070) | |
| 29 | error "No, in Mac OS X < 10.7 recursive mutexes actually don't work." | |
| 30 | #else | |
| 31 | int x = (int)PTHREAD_MUTEX_RECURSIVE; | |
| 32 | return !x; | |
| 33 | #endif | |
| 34 | ]])], | |
| 35 | [AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE], [1], | |
| 36 | [Define if the <pthread.h> defines PTHREAD_MUTEX_RECURSIVE.])]) | |
| 37 | fi | |
| 38 | gl_PREREQ_LOCK | |
| 39 | ]) | |
| 40 | ||
| 41 | # Prerequisites of lib/glthread/lock.c. | |
| 42 | AC_DEFUN([gl_PREREQ_LOCK], [:]) |