--- a/project_files/hwc/CMakeLists.txt	Thu Jan 09 23:54:40 2014 +0400
+++ b/project_files/hwc/CMakeLists.txt	Thu Jan 09 19:10:12 2014 +0100
@@ -73,6 +73,7 @@
                                 ${GLEW_LIBRARY}
                                 physfs
                                 physlayer
+                                m
                                 #TODO: add other libraries
                             )
 if(APPLE)