Added -fno-tree-vrp to CMake definition, since tree-vrp optimization breaks...

Added -fno-tree-vrp to CMake definition, since tree-vrp optimization breaks the code for some strange reason.

cmake/commonconf.cmake

@@ -119,8 +119,11 @@ IF(WIN32)
     
 ELSEIF(UNIX)
     LIST(APPEND CampvisGlobalDefinitions "-DUNIX")
-    LIST(APPEND CampvisGlobalDefinitions "-DUNIX -Wall")
+    LIST(APPEND CampvisGlobalDefinitions "-Wall")
     LIST(APPEND CampvisGlobalDefinitions "-D__STDC_CONSTANT_MACROS")  
+    
+    # disable tree-vrp optimization in gcc, which for some strange reason breaks tgt's matrix code...
+    LIST(APPEND CampvisGlobalDefinitions "-fno-tree-vrp")
 ENDIF(WIN32)
 
 # tgt configuration