Add install to Makefile

Makefile

 TARGET_USER = ximc
 
+ifeq ($(PREFIX),)
+    PREFIX := /usr
+endif
 
 INC_DIR=src
 C_FLAGS=-DLIBXIMC_EXPORTS
@@ -43,9 +46,10 @@ $(TARGET_USER):  obj lib $(OBJ_FILES)
 obj lib:
 	@mkdir $@
 
-#install:
-#	su -c "cp lib/$(BASELIBNAME).so $(INSTALL_LIB_DIR);\
-#		cp src/$(TARGET_USER).h $(INSTALL_INC_DIR)"
+install:
+	install lib/$(DT_SHLIB) $(PREFIX)/lib
+	cd $(PREFIX)/lib; ln -sf $(DT_SHLIB) $(DT_SONAME);ln -sf $(DT_SONAME) $(SHLIB)
+	install -m 644 src/$(TARGET_USER).h $(PREFIX)/include
 
 
 clean: