added "install" target

Makefile

@@ -1,4 +1,5 @@
 
+install_dir ?= $(HOME)/local/anaglym
 WINCHECK := $(shell which msys-1.0.dll >/dev/null 2>&1; if [ $$? -eq 0 ]; then echo MSYS; fi)
 ifeq ($(strip $(WINCHECK)),)
 PLATFORM := PLATFORM_LINUX
@@ -134,6 +135,12 @@ ifeq ($(PLATFORM),PLATFORM_WINDOWS)
 	cp -a $(shell which libvorbisfile-3.dll) $@
 endif
 
+.PHONY: install
+install: dist
+	@echo "Installing to '$(install_dir)', override with 'make install_dir=path'"
+	-mkdir -p $(install_dir)
+	rsync -av dist/ $(install_dir)
+
 clean:
 	-rm -f *.o *.dep *~ $(TARGET) stdout.txt stderr.txt sdl_keymap.h sdl_keymap.cc
 	$(MAKE) -C wfobj clean