diff --git a/raylib/cgo_darwin.go b/raylib/cgo_darwin.go
index 981a795..7b4541c 100644
--- a/raylib/cgo_darwin.go
+++ b/raylib/cgo_darwin.go
@@ -19,8 +19,12 @@ package raylib
 #include "external/glfw/src/nsgl_context.m"
 
 #cgo darwin LDFLAGS: -framework OpenGL -framework Cocoa -framework IOKit -framework CoreVideo
-#cgo darwin CFLAGS: -x objective-c -Iexternal/glfw/include -D_GLFW_COCOA -D_GLFW_USE_CHDIR -D_GLFW_USE_MENUBAR -D_GLFW_USE_RETINA -Wno-deprecated-declarations -DPLATFORM_DESKTOP -DGRAPHICS_API_OPENGL_33
+#cgo darwin CFLAGS: -x objective-c -Iexternal/glfw/include -D_GLFW_COCOA -D_GLFW_USE_CHDIR -D_GLFW_USE_MENUBAR -D_GLFW_USE_RETINA -Wno-deprecated-declarations -DPLATFORM_DESKTOP
 
 #cgo darwin,!noaudio LDFLAGS: -framework OpenAL
+
+#cgo darwin,opengl11 CFLAGS: -DGRAPHICS_API_OPENGL_11
+#cgo darwin,opengl21 CFLAGS: -DGRAPHICS_API_OPENGL_21
+#cgo darwin,!opengl11,!opengl21 CFLAGS: -DGRAPHICS_API_OPENGL_33
 */
 import "C"
diff --git a/raylib/cgo_linux.go b/raylib/cgo_linux.go
index eb9dcd1..c7bca6b 100644
--- a/raylib/cgo_linux.go
+++ b/raylib/cgo_linux.go
@@ -21,11 +21,16 @@ package raylib
 #include "external/glfw/src/egl_context.c"
 
 #cgo linux LDFLAGS: -lGL -lm -pthread -ldl -lrt -lX11 -lXrandr -lXinerama -lXi -lXxf86vm -lXcursor
-#cgo linux CFLAGS: -D_GLFW_X11 -Iexternal/glfw/include -DPLATFORM_DESKTOP -DGRAPHICS_API_OPENGL_33
+#cgo linux CFLAGS: -D_GLFW_X11 -Iexternal/glfw/include -DPLATFORM_DESKTOP
 
 #cgo linux,!noaudio LDFLAGS: -lopenal
 
 #cgo linux,!static CFLAGS: -DSHARED_OPENAL
 #cgo linux,static CFLAGS: -DAL_LIBTYPE_STATIC
+
+
+#cgo linux,opengl11 CFLAGS: -DGRAPHICS_API_OPENGL_11
+#cgo linux,opengl21 CFLAGS: -DGRAPHICS_API_OPENGL_21
+#cgo linux,!opengl11,!opengl21 CFLAGS: -DGRAPHICS_API_OPENGL_33
 */
 import "C"
diff --git a/raylib/cgo_windows.go b/raylib/cgo_windows.go
index 3f0c491..cc11a55 100644
--- a/raylib/cgo_windows.go
+++ b/raylib/cgo_windows.go
@@ -20,11 +20,15 @@ package raylib
 #include "external/glfw/src/egl_context.c"
 
 #cgo windows LDFLAGS: -lopengl32 -lgdi32 -lwinmm -lole32
-#cgo windows CFLAGS: -D_GLFW_WIN32 -Iexternal/glfw/include -Iexternal/glfw/deps/mingw -DPLATFORM_DESKTOP -DGRAPHICS_API_OPENGL_33
+#cgo windows CFLAGS: -D_GLFW_WIN32 -Iexternal/glfw/include -Iexternal/glfw/deps/mingw -DPLATFORM_DESKTOP
 
 #cgo windows,!noaudio LDFLAGS: -lopenal
 
 #cgo windows,!static CFLAGS: -DSHARED_OPENAL
 #cgo windows,static CFLAGS: -DAL_LIBTYPE_STATIC
+
+#cgo windows,opengl11 CFLAGS: -DGRAPHICS_API_OPENGL_11
+#cgo windows,opengl21 CFLAGS: -DGRAPHICS_API_OPENGL_21
+#cgo windows,!opengl11,!opengl21 CFLAGS: -DGRAPHICS_API_OPENGL_33
 */
 import "C"