diff --git a/engine/qclib/Makefile b/engine/qclib/Makefile
index 40a721c64..786d22e32 100644
--- a/engine/qclib/Makefile
+++ b/engine/qclib/Makefile
@@ -6,7 +6,8 @@ WIN32GUI_OBJS=qccgui.o qccguistuff.o
 TUI_OBJS=qcctui.o
 LIB_OBJS=
 
-CC=gcc -Wall
+CC?=gcc
+CFLAGS?=-Wall
 
 all: qcc