fixes

src/Makefile

@@ -1,17 +1,25 @@
 all: palera1n
 
 OBJECTS = main.o dfuhelper.o lockdown_helper.o devhelper.o exec_checkra1n.o checkra1n.o
+LIPO = lipo
 
-%.o: %.c
-	$(CC) -c $(CFLAGS) $<
+checkra1n: checkra1n-macos
+ifneq (,$(findstring arm64, $(CFLAGS)))
+	$(LIPO) -thin arm64 -output checkra1n checkra1n-macos
+else
+	$(LIPO) -thin x86_64 -output checkra1n checkra1n-macos
+endif
 
 checkra1n.c: checkra1n
 	xxd -iC checkra1n > checkra1n.c
 
+%.o: %.c
+	$(CC) -c $(CFLAGS) $<
+
 palera1n: $(OBJECTS)
 	$(CC) $(OBJECTS) $(CFLAGS) $(LDFLAGS) -o palera1n
 
 clean:
-	rm -f *.o palera1n
+	rm -f *.o palera1n checkra1n
 
 .PHONY: all clean