diff --git a/Makefile b/Makefile
index dbe6269..2d5b745 100644
--- a/Makefile
+++ b/Makefile
@@ -39,7 +39,15 @@ OPENCV_CFLAGS != pkg-config --cflags opencv4
 OPENCV_LIBS != pkg-config --libs opencv4
 QUIRC_CXXFLAGS = $(QUIRC_CFLAGS) $(OPENCV_CFLAGS) --std=c++17
 
-all: libquirc.so qrtest inspect quirc-demo quirc-scanner
+.PHONY: all v4l sdl opencv install uninstall clean
+
+all: libquirc.so qrtest
+
+v4l: quirc-scanner
+
+sdl: inspect quirc-demo
+
+opencv: inspect-opencv quirc-demo-opencv
 
 qrtest: tests/dbgutil.o tests/qrtest.o libquirc.a
 	$(CC) -o $@ tests/dbgutil.o tests/qrtest.o libquirc.a $(LDFLAGS) -lm -ljpeg -lpng