diff options
| author | redi <redi@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-03-18 10:53:38 +0000 |
|---|---|---|
| committer | redi <redi@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-03-18 10:53:38 +0000 |
| commit | e6a8d2518dde251181d3abb3d800acfcd46b1331 (patch) | |
| tree | 589296fb247ee2147b0d907485aa46457dc7a4c8 /libstdc++-v3/acinclude.m4 | |
| parent | 9550983d634587ec9632c90a83ad3713dbf7068d (diff) | |
2015-03-18 Jonathan Wakely <jwakely@redhat.com>
Torvald Riegel <triegel@redhat.com>
* acinclude.m4 (GLIBCXX_CHECK_GTHREADS): Check for pthread_rwlock_t.
* config.h.in: Regenerate.
* configure: Regenerate.
* include/std/shared_mutex: Check _GLIBCXX_USE_PTHREAD_RWLOCK_T.
(shared_timed_mutex::_M_rwlock): Use PTHREAD_RWLOCK_INITIALIZER.
(shared_timed_mutex::lock_shared()): Retry on EAGAIN.
(shared_timed_mutex::try_lock_shared_until()): Retry on EAGAIN and
EDEADLK.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@221484 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libstdc++-v3/acinclude.m4')
| -rw-r--r-- | libstdc++-v3/acinclude.m4 | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4 index 0b8c0f0b111..74f5a652fb7 100644 --- a/libstdc++-v3/acinclude.m4 +++ b/libstdc++-v3/acinclude.m4 @@ -3563,6 +3563,13 @@ AC_DEFUN([GLIBCXX_CHECK_GTHREADS], [ if test x"$ac_has_gthreads" = x"yes"; then AC_DEFINE(_GLIBCXX_HAS_GTHREADS, 1, [Define if gthreads library is available.]) + + # Also check for pthread_rwlock_t for std::shared_timed_mutex in C++14 + AC_CHECK_TYPE([pthread_rwlock_t], + [AC_DEFINE([_GLIBCXX_USE_PTHREAD_RWLOCK_T], 1, + [Define if POSIX read/write locks are available in <gthr.h>.])], + [], + [#include "gthr.h"]) fi CXXFLAGS="$ac_save_CXXFLAGS" |