diff --git a/makefile.mingw32 b/makefile.mingw32
index 44a368a..93d0a72 100644
--- a/makefile.mingw32
+++ b/makefile.mingw32
@@ -1,20 +1,21 @@
 CC=g++
 CFLAGS=-O2 -W -Wall -pedantic -I"c:/zengine-dev/include/" -L"c:/zengine-dev/lib/"
-LIBS=-lmingw32 -mwindows -lZEngine -lSDL_mixer -lSDL_ttf -lSDLmain -lSDL
+LIBS=-lmingw32 -mwindows -lZEngine -lSDL_mixer -lSDL_ttf -lSDLmain -lSDL -lGL
 
-zengine.a: src/ZE_ZTimer.cpp src/ZE_ZImage.cpp src/ZE_ZFont.cpp src/ZE_ZMusic.cpp src/ZE_ZConfigFile.cpp src/ZE_ZSound.cpp src/ZE_ZMusic.cpp src/ZE_Error.cpp src/ZE_ZEngine.cpp
-	$(CC) $(CFLAGS) -c src/ZE_ZTimer.cpp src/ZE_ZImage.cpp src/ZE_ZFont.cpp src/ZE_ZMusic.cpp src/ZE_ZConfigFile.cpp src/ZE_ZSound.cpp src/ZE_ZMusic.cpp src/ZE_Error.cpp src/ZE_ZEngine.cpp
-	ar rcs lib/libZEngine.a ZE_ZTimer.o ZE_ZImage.o ZE_ZFont.o ZE_ZMusic.o ZE_ZConfigFile.o ZE_ZSound.o ZE_ZMusic.o ZE_Error.o ZE_ZEngine.o
+libZEngineS.a: src/ZE_ZTimer.cpp src/ZE_ZImage.cpp src/ZE_ZFont.cpp src/ZE_ZMusic.cpp src/ZE_ZConfigFile.cpp src/ZE_ZSound.cpp src/ZE_ZMusic.cpp src/ZE_ZRect.cpp  src/ZE_Error.cpp src/ZE_ZEngine.cpp src/external/SDLGL_Util.cpp
+	$(CC) $(CFLAGS) -c src/ZE_ZTimer.cpp src/ZE_ZImage.cpp src/ZE_ZFont.cpp src/ZE_ZMusic.cpp src/ZE_ZConfigFile.cpp src/ZE_ZSound.cpp src/ZE_ZMusic.cpp src/ZE_ZRect.cpp src/ZE_Error.cpp src/ZE_ZEngine.cpp src/external/SDLGL_Util.cpp
+	ar rcs lib/libZEngineS.a ZE_ZTimer.o ZE_ZImage.o ZE_ZFont.o ZE_ZMusic.o ZE_ZConfigFile.o ZE_ZSound.o ZE_ZMusic.o ZE_Error.o ZE_ZRect.o ZE_ZEngine.o SDLGL_Util.o
 
-tests: test/ZFontTest.cpp test/ZMouseTest.cpp test/ZMusicTest.cpp test/ZSoundTest.cpp test/ZTimerTest.cpp test/ZImageTest.cpp
-	$(CC) $(CFLAGS) test/ZFontTest.cpp -o test/bin/ZFontTest.exe  $(LIBS)
-	$(CC) $(CFLAGS) test/ZMouseTest.cpp -o test/bin/ZMouseTest.exe $(LIBS)
-	$(CC) $(CFLAGS) test/ZMusicTest.cpp -o test/bin/ZMusicTest.exe $(LIBS)
-	$(CC) $(CFLAGS) test/ZSoundTest.cpp -o test/bin/ZSoundTest.exe $(LIBS)
-	$(CC) $(CFLAGS) test/ZTimerTest.cpp -o test/bin/ZTimerTest.exe $(LIBS)
-	$(CC) $(CFLAGS) test/ZImageTest.cpp -o test/bin/ZImageTest.exe $(LIBS) 
+tests: test/ZFontTest.cpp test/ZMouseTest.cpp test/ZMusicTest.cpp test/ZSoundTest.cpp test/ZTimerTest.cpp test/ZImageTest.cpp test/ZRectTest.cpp
+	$(CC) $(CFLAGS) test/ZFontTest.cpp -o test/bin/ZFontTest  $(LIBS)
+	$(CC) $(CFLAGS) test/ZMouseTest.cpp -o test/bin/ZMouseTest $(LIBS)
+	$(CC) $(CFLAGS) test/ZMusicTest.cpp -o test/bin/ZMusicTest $(LIBS)
+	$(CC) $(CFLAGS) test/ZSoundTest.cpp -o test/bin/ZSoundTest $(LIBS)
+	$(CC) $(CFLAGS) test/ZTimerTest.cpp -o test/bin/ZTimerTest $(LIBS)
+	$(CC) $(CFLAGS) test/ZImageTest.cpp -o test/bin/ZImageTest $(LIBS) 
+	$(CC) $(CFLAGS) test/ZRectTest.cpp -o test/bin/ZRectTest $(LIBS) 
 
 .PHONY: clean
 
 clean:
-	rm *.o
\ No newline at end of file
+	rm *.o