Fix rtaudio link (pull from git)

dep/Makefile

@@ -123,11 +123,10 @@ $(libzip):
 	$(MAKE) -C libzip-1.2.0 install
 
 $(rtmidi):
-	$(WGET) http://www.music.mcgill.ca/~gary/rtmidi/release/rtmidi-3.0.0.tar.gz
-	$(UNTAR) rtmidi-3.0.0.tar.gz
-	cd rtmidi-3.0.0 && ./configure --prefix="$(LOCAL)"
-	$(MAKE) -C rtmidi-3.0.0
-	$(MAKE) -C rtmidi-3.0.0 install
+	git clone https://github.com/thestk/rtmidi.git
+	cd rtmidi && ./autogen.sh --no-configure && ./configure --prefix="$(LOCAL)"
+	$(MAKE) -C rtmidi
+	$(MAKE) -C rtmidi install
 
 $(rtaudio):
 	cd rtaudio && mkdir -p cmakebuild