Fixed unit tests no longer compiling

test/CMakeLists.txt

 
 add_custom_target (check COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure)
 
+# Add GLM Library
+find_package (GLM REQUIRED)
+if (GLM_FOUND)
+    include_directories (SYSTEM  ${GLM_INCLUDE_DIRS})
+endif (GLM_FOUND)
+
 #################################################################
 
 add_executable (tester_binary EXCLUDE_FROM_ALL