gentoo-overlay/games-board/tetzle/files/tetzle-2.1.3-gentoo.patch

--- a/tetzle.pro	2018-05-29 13:20:06.000000000 +0200
+++ b/tetzle.pro	2018-07-11 20:24:01.076668458 +0200
@@ -104,7 +104,7 @@
 	RC_FILE = icons/icon.rc
 } else:unix {
 	isEmpty(PREFIX) {
-		PREFIX = /usr/local
+		PREFIX = /usr
 	}
 	isEmpty(BINDIR) {
 		BINDIR = bin