diff --git a/math.cmake b/math.cmake
index d1aecfb..634c124 100644
--- a/math.cmake
+++ b/math.cmake
@@ -1,14 +1,6 @@
-macro(use_mgl MGL_PATH)
-    IF(WIN32)
-        add_compile_options(/arch:AVX2)
-    ELSE()
-        add_compile_options(-mavx2)
-    ENDIF()
+macro(use_glm GLM_PATH)
 
-    add_definitions(-DMATH_USE_OPENGL)
-    add_definitions(-DMATH_RIGHTHANDED_CAMERA)
-    add_definitions(-DMATH_AVX)
+    include_directories(${GLM_PATH})
+    add_subdirectory(${GLM_PATH})
 
-    include_directories(${MGL_PATH}/src)
-    add_subdirectory(${MGL_PATH})
 endmacro()