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Diffstat (limited to 'gnulib/m4/lock.m4')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/m4/lock.m4 | 41 |
2 files changed, 41 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/m4/lock.m4 b/gnulib/m4/lock.m4 new file mode 100644 index 0000000..9686945 --- /dev/null +++ b/gnulib/m4/lock.m4 @@ -0,0 +1,41 @@ +# lock.m4 serial 11 (gettext-0.18.2) +dnl Copyright (C) 2005-2011 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN([gl_LOCK], +[ + AC_REQUIRE([gl_THREADLIB]) + if test "$gl_threads_api" = posix; then + # OSF/1 4.0 and MacOS X 10.1 lack the pthread_rwlock_t type and the + # pthread_rwlock_* functions. + AC_CHECK_TYPE([pthread_rwlock_t], + [AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1], + [Define if the POSIX multithreading library has read/write locks.])], + [], + [#include <pthread.h>]) + # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro. + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM( + [[#include <pthread.h>]], + [[ +#if __FreeBSD__ == 4 +error "No, in FreeBSD 4.0 recursive mutexes actually don't work." +#else +int x = (int)PTHREAD_MUTEX_RECURSIVE; +return !x; +#endif + ]])], + [AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE], [1], + [Define if the <pthread.h> defines PTHREAD_MUTEX_RECURSIVE.])]) + fi + gl_PREREQ_LOCK +]) + +# Prerequisites of lib/lock.c. +AC_DEFUN([gl_PREREQ_LOCK], [ + AC_REQUIRE([AC_C_INLINE]) +]) |