include <mutex>: fixes compile on ubuntu precise/g++4.7/libstdc++

This commit is contained in:
Dane Springmeyer 2013-10-23 15:43:54 -07:00
parent efb687eb0b
commit a248f880d6

View file

@ -53,6 +53,7 @@
#define PROJ_ENVELOPE_POINTS 20
#include <boost/thread/locks.hpp>
#include <mutex>
namespace mapnik
{