@@ -10,7 +10,7 @@ endif
11# Build a fat lib on Mac OS X
11# Build a fat lib on Mac OS X
12ifeq ($(OS),darwin)
12ifeq ($(OS),darwin)
13− CFLAGS += -arch i386 -arch x86_64
13+ CFLAGS += -arch $(shell ghc -e System.Info.arch | tr -d '"')
16LIBTARGET = libidris_rts.a
16LIBTARGET = libidris_rts.a