Add makefile

Closes #396
Thanks @iskunk !

Makefile

@@ -0,0 +1,37 @@
+# GNU Make makefile for building with Mono
+
+MONO    = mono
+MSBUILD = msbuild
+
+#CONFIG = Debug
+CONFIG = Release
+
+PK3DS_EXE = pk3DS/bin/$(CONFIG)/pk3DS.exe
+
+# Note: The Mono compiler seems to dump some detritus by default in
+# /tmp, so we set TMPDIR to a more suitable location
+
+$(PK3DS_EXE): pk3DS.sln
+	mkdir -p tmp
+	TMPDIR=$(shell pwd)/tmp $(MSBUILD) /p:Configuration=$(CONFIG) $<
+
+install: $(PK3DS_EXE)
+	rm -rf pk3ds-install
+	mkdir pk3ds-install
+	cp -np */bin/$(CONFIG)/*.dll pk3ds-install
+	cp -np */bin/$(CONFIG)/*.exe pk3ds-install
+
+run: $(PK3DS_EXE)
+	$(MONO) $<
+
+run-install: pk3ds-install/SPICA.exe
+	$(MONO) $<
+
+clean:
+	rm -rf pk3DS*/bin pk3DS*/obj
+	rm -rf pk3ds-install
+	rm -rf tmp
+
+.PHONY: clean install run run-install
+
+# EOF