nexmon – Blame information for rev 1
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Rev | Author | Line No. | Line |
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1 | office | 1 | # lock.m4 serial 11 (gettext-0.18.2) |
2 | dnl Copyright (C) 2005-2011 Free Software Foundation, Inc. |
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3 | dnl This file is free software; the Free Software Foundation |
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4 | dnl gives unlimited permission to copy and/or distribute it, |
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5 | dnl with or without modifications, as long as this notice is preserved. |
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6 | |||
7 | dnl From Bruno Haible. |
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8 | |||
9 | AC_DEFUN([gl_LOCK], |
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10 | [ |
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11 | AC_REQUIRE([gl_THREADLIB]) |
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12 | if test "$gl_threads_api" = posix; then |
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13 | # OSF/1 4.0 and MacOS X 10.1 lack the pthread_rwlock_t type and the |
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14 | # pthread_rwlock_* functions. |
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15 | AC_CHECK_TYPE([pthread_rwlock_t], |
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16 | [AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1], |
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17 | [Define if the POSIX multithreading library has read/write locks.])], |
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18 | [], |
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19 | [#include <pthread.h>]) |
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20 | # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro. |
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21 | AC_COMPILE_IFELSE([ |
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22 | AC_LANG_PROGRAM( |
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23 | [[#include <pthread.h>]], |
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24 | [[ |
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25 | #if __FreeBSD__ == 4 |
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26 | error "No, in FreeBSD 4.0 recursive mutexes actually don't work." |
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27 | #else |
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28 | int x = (int)PTHREAD_MUTEX_RECURSIVE; |
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29 | return !x; |
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30 | #endif |
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31 | ]])], |
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32 | [AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE], [1], |
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33 | [Define if the <pthread.h> defines PTHREAD_MUTEX_RECURSIVE.])]) |
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34 | fi |
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35 | gl_PREREQ_LOCK |
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36 | ]) |
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37 | |||
38 | # Prerequisites of lib/lock.c. |
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39 | AC_DEFUN([gl_PREREQ_LOCK], [ |
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40 | AC_REQUIRE([AC_C_INLINE]) |
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41 | ]) |