gentoo-overlay/games-emulation/gngeo/files/gngeo-0.8-concurrentMake.patch

--- src/generator68k/Makefile.am.orig	2015-01-23 18:37:37.998723294 -0500
+++ src/generator68k/Makefile.am	2015-01-23 18:38:39.995391133 -0500
@@ -71,9 +71,12 @@
 
 #def68k : def68k.c
 #	gcc def68k.c tab68k.c -o def68k -I .. -I ../.. -I . `sdl-config --cflags`
-def68k.o gen68k.o tab68k2.o : %.o : %.c
+def68k.o tab68k2.o : %.o : %.c
 	$(gcc_build_verbose)$(CC_FOR_BUILD) -c $< -o $@ -I .. -I ../.. -I . `sdl-config --cflags`
 
+gen68k.o: gen68k.c def68k-iibs.h
+	$(CC_FOR_BUILD) -c $< -o $@ -I .. -I ../.. -I . `sdl-config --cflags`
+
 def68k : def68k.o tab68k2.o
 	$(gcc_build_verbose)$(CC_FOR_BUILD) def68k.o tab68k2.o -o $@