made "make install" work for non-root users

diff --git a/Makefile b/Makefile
index a2f2ada..a3c3847 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -42,7 +42,7 @@ rocks := $(rocks:%=data/rock%.png)
 graphics := data/ship.png data/icon.png data/life.png data/font.png $(rocks)
 
 INSTALL := install
-INSTALL_PROGRAM := $(INSTALL) -o games -g games
+INSTALL_PROGRAM := $(INSTALL) $(shell sh -c 'test "$$UID" "=" "0" && echo "-o games -g games"')
 INSTALL_DATA := $(INSTALL) -m 644