void-packages/srcpkgs/stockfish/patches/makefile.patch

--- src/Makefile.orig
+++ src/Makefile
@@ -159,9 +159,6 @@
 			CXXFLAGS += -m$(bits)
 			LDFLAGS += -m$(bits)
 		endif
-	else
-		CXXFLAGS += -m$(bits)
-		LDFLAGS += -m$(bits)
 	endif
 
 	ifneq ($(KERNEL),Darwin)