--- Makefile.orig	2023-09-21 07:05:32.000000000 -0400
+++ Makefile	2023-09-21 07:08:40.000000000 -0400
@@ -14,12 +14,23 @@
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 CC ?= gcc
-PREFIX ?= /usr/local
+PREFIX ?= @PREFIX@
+# Turn off SDL support with dylib-only builds
+ifdef BUILD_QUIRC
 SDL_CFLAGS := $(shell pkg-config --cflags sdl 2>&1)
-SDL_LIBS = $(shell pkg-config --libs sdl)
+SDL_LIBS := $(shell pkg-config --libs sdl)
+SDL_LIBS += -lSDL -lSDL_gfx
+else
+SDL_CFLAGS ?= 
+SDL_LIBS ?= 
+endif
 
 LIB_VERSION = 1.2
 
+LINKERLIBFLAGS = -dynamiclib -headerpad_max_install_names \
+                 -current_version $(LIB_VERSION) \
+                 -compatibility_version $(LIB_VERSION)
+
 CFLAGS ?= -O3 -Wall -fPIC
 QUIRC_CFLAGS = -Ilib $(CFLAGS) $(SDL_CFLAGS)
 LIB_OBJ = \
@@ -41,7 +52,7 @@
 
 .PHONY: all v4l sdl opencv install uninstall clean
 
-all: libquirc.so qrtest
+all: libquirc.dylib qrtest
 
 v4l: quirc-scanner
 
@@ -53,30 +64,30 @@
 	$(CC) -o $@ tests/dbgutil.o tests/qrtest.o libquirc.a $(LDFLAGS) -lm -ljpeg -lpng
 
 inspect: tests/dbgutil.o tests/inspect.o libquirc.a
-	$(CC) -o $@ tests/dbgutil.o tests/inspect.o libquirc.a $(LDFLAGS) -lm -ljpeg -lpng $(SDL_LIBS) -lSDL_gfx
+	$(CC) -o $@ tests/dbgutil.o tests/inspect.o libquirc.a $(LDFLAGS) -lm -ljpeg -lpng $(SDL_LIBS)
 
 inspect-opencv: tests/dbgutil.o tests/inspect_opencv.o libquirc.a
 	$(CXX) -o $@ tests/dbgutil.o tests/inspect_opencv.o libquirc.a $(LDFLAGS) -lm -ljpeg -lpng $(OPENCV_LIBS)
 
 quirc-demo: $(DEMO_OBJ) $(DEMO_UTIL_OBJ) demo/demo.o libquirc.a
-	$(CC) -o $@ $(DEMO_OBJ) $(DEMO_UTIL_OBJ) demo/demo.o libquirc.a $(LDFLAGS) -lm -ljpeg $(SDL_LIBS) -lSDL_gfx
+	$(CC) -o $@ $(DEMO_OBJ) $(DEMO_UTIL_OBJ) demo/demo.o libquirc.a $(LDFLAGS) -lm -ljpeg $(SDL_LIBS)
 
 quirc-demo-opencv: $(DEMO_UTIL_OBJ) demo/demo_opencv.o libquirc.a
 	$(CXX) -o $@ $(DEMO_UTIL_OBJ) demo/demo_opencv.o libquirc.a $(LDFLAGS) -lm $(OPENCV_LIBS)
 
 quirc-scanner: $(DEMO_OBJ) $(DEMO_UTIL_OBJ) demo/scanner.o libquirc.a
-	$(CC) -o $@ $(DEMO_OBJ) $(DEMO_UTIL_OBJ) demo/scanner.o libquirc.a $(LDFLAGS) -lm -ljpeg
+	$(CC) -o $@ $(DEMO_OBJ) $(DEMO_UTIL_OBJ) demo/scanner.o libquirc.a $(LDFLAGS) -lm -ljpeg $(SDL_LIBS)
 
 libquirc.a: $(LIB_OBJ)
 	rm -f $@
 	ar cru $@ $(LIB_OBJ)
 	ranlib $@
 
-.PHONY: libquirc.so
-libquirc.so: libquirc.so.$(LIB_VERSION)
+.PHONY: libquirc.dylib
+libquirc.dylib: libquirc.$(LIB_VERSION).dylib
 
-libquirc.so.$(LIB_VERSION): $(LIB_OBJ)
-	$(CC) -shared -o $@ $(LIB_OBJ) $(LDFLAGS) -lm
+libquirc.$(LIB_VERSION).dylib: $(LIB_OBJ)
+	$(CC) $(LINKERLIBFLAGS) -install_name $(PREFIX)/lib/$@ -o $@ $(LIB_OBJ) $(LDFLAGS) -lm
 
 .c.o:
 	$(CC) $(QUIRC_CFLAGS) -o $@ -c $<
@@ -85,18 +96,17 @@
 .cxx.o:
 	$(CXX) $(QUIRC_CXXFLAGS) -o $@ -c $<
 
-install: libquirc.a libquirc.so.$(LIB_VERSION) quirc-demo quirc-scanner
-	install -o root -g root -m 0644 lib/quirc.h $(DESTDIR)$(PREFIX)/include
-	install -o root -g root -m 0644 libquirc.a $(DESTDIR)$(PREFIX)/lib
-	install -o root -g root -m 0755 libquirc.so.$(LIB_VERSION) \
+install: libquirc.a libquirc.$(LIB_VERSION).dylib quirc-demo quirc-scanner
+	install -o @MACPORTSUSER@ -g @MACPORTSUSER@ -m 0644 lib/quirc.h $(DESTDIR)$(PREFIX)/include
+	install -o @MACPORTSUSER@ -g @MACPORTSUSER@ -m 0644 libquirc.a $(DESTDIR)$(PREFIX)/lib
+	install -o @MACPORTSUSER@ -g @MACPORTSUSER@ -m 0755 libquirc.$(LIB_VERSION).dylib \
 		$(DESTDIR)$(PREFIX)/lib
-	install -o root -g root -m 0755 quirc-demo $(DESTDIR)$(PREFIX)/bin
-	# install -o root -g root -m 0755 quirc-demo-opencv $(DESTDIR)$(PREFIX)/bin
-	install -o root -g root -m 0755 quirc-scanner $(DESTDIR)$(PREFIX)/bin
+	install -o @MACPORTSUSER@ -g @MACPORTSUSER@ -m 0755 quirc-demo $(DESTDIR)$(PREFIX)/bin
+	install -o @MACPORTSUSER@ -g @MACPORTSUSER@ -m 0755 quirc-scanner $(DESTDIR)$(PREFIX)/bin
 
 uninstall:
 	rm -f $(DESTDIR)$(PREFIX)/include/quirc.h
-	rm -f $(DESTDIR)$(PREFIX)/lib/libquirc.so.$(LIB_VERSION)
+	rm -f $(DESTDIR)$(PREFIX)/lib/libquirc.$(LIB_VERSION).dylib
 	rm -f $(DESTDIR)$(PREFIX)/lib/libquirc.a
 	rm -f $(DESTDIR)$(PREFIX)/bin/quirc-demo
 	rm -f $(DESTDIR)$(PREFIX)/bin/quirc-demo-opencv
@@ -106,7 +116,7 @@
 	rm -f */*.o
 	rm -f */*.lo
 	rm -f libquirc.a
-	rm -f libquirc.so.$(LIB_VERSION)
+	rm -f libquirc.$(LIB_VERSION).dylib
 	rm -f qrtest
 	rm -f inspect
 	rm -f inspect-opencv
--- ./demo/camera.c	2022-09-05 08:15:57.000000000 -0400
+++ ./demo/camera.c	2022-09-05 08:23:51.000000000 -0400
@@ -25,6 +25,8 @@
 #include <unistd.h>
 #ifdef __OpenBSD__
 #include <sys/videoio.h>
+#elif defined(__APPLE__)
+#include <videoio.h>
 #else
 #include <linux/videodev2.h>
 #endif