Use $(MAKE) rather than make.

robertmhaas · robertmhaas · commit 6f59a5e5dd73 · 2011-02-04T09:48:32.000-05:00
Per buildfarm.
diff --git a/src/port/Makefile b/src/port/Makefile
@@ -75,7 +75,7 @@ $(OBJS_SRV): | submake-errcodes
 .PHONY: submake-errcodes
 
 submake-errcodes:
-	make -C ../backend submake-errcodes
+	$(MAKE) -C ../backend submake-errcodes
 
 # Dependency is to ensure that path changes propagate
 
