Register a global hotkey

Build DDHotKey as a static library so we can compile it with ARC turned
on and our project with ARC turned off. Since DDHotKey is written with
ARC, if I include its headers directly, I'd need to enable ARC on my
project in order to compile it.

Initialise an `NSApplication` to give us an environment in which to
register the global hotkey.

A new class `Invert` will respond to the hotkey and respond accordingly.

1 files changed, 42 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index ef9d048..5baa173 100644
--- a/Makefile
+++ b/Makefile
@@ -1,2 +1,42 @@
-all:
-	clang -x objective-c -framework CoreGraphics -o invert-catalina-invert main.m
+# SOURCES := $(shell find . -not -path './lib/*' -and \( -name '*.h' -or -name '*.m' \))
+SOURCES := $(shell ls *.{h,m})
+
+DDHOTKEY_OBJ := $(patsubst %.m,%.o,$(wildcard lib/DDHotKey/*.m))
+
+
+all: $(SOURCES) build/libddhotkey.a build/include/*.h
+	clang -x objective-c \
+		-framework Carbon \
+		-framework Cocoa \
+		-framework CoreGraphics \
+		-framework Foundation \
+		-fno-objc-arc \
+		-I./build/include \
+		-L./build \
+		-lddhotkey \
+		-o invert-catalina-invert \
+		$(SOURCES)
+
+build/include/*.h: lib/DDHotKey/*.h
+	cp $^ build/include/
+
+# build/libddhotkey.o: lib/DDHotKey/*.h lib/DDHotKey/*.m
+lib/DDHotKey/%.o: lib/DDHotKey/%.m
+	clang -x objective-c \
+		-w \
+		-framework Carbon \
+		-framework Cocoa \
+		-framework Foundation \
+		-fobjc-arc \
+		-c \
+		$^
+
+	mv *.o lib/DDHotKey/
+
+lib/DDHotKey/*.o: lib/DDHotKey/*.m
+
+build/libddhotkey.a: $(DDHOTKEY_OBJ)
+# build/libddhotkey.a: lib/DDHotKey/*.o
+	libtool -static \
+		-o $@ \
+		$^