53677172f2
The Mutex and Cond constructors are only "constexpr" with glibc, and this is what this #ifdef is about. Backport of commit 459a812a See http://bugs.musicpd.org/view.php?id=4511
Music Player Daemon (MPD) http://www.musicpd.org A daemon for playing music of various formats. Music is played through the server's audio device. The daemon stores info about all available music, and this info can be easily searched and retrieved. Player control, info retrieval, and playlist management can all be managed remotely. For basic installation information see the INSTALL file. MPD is released under the GNU General Public License version 2, which is distributed in the COPYING file. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.