$NetBSD$

Patches LDFLAGS to set rpath to package dir.

--- Makefile.orig	2024-04-28 15:16:45.341153643 -0400
+++ Makefile	2024-04-28 15:17:57.960908017 -0400
@@ -25,7 +25,7 @@
 DATA_DIR = $(PREFIX)/share/games/$(BIN)/# the trailing slash is required for paths in the source
 
 LIBS    = `sdl2-config --libs` -lSDL2_mixer
-LDFLAGS = $(LIBS)
+LDFLAGS = -Wl,-rpath,$(PREFIX)/lib $(LIBS)
 
 CPPFLAGS = -DDATA_DIR=\"$(DATA_DIR)\" -DVERSION=\"'$(VERSION)'\"