--- a/Makefile.in
+++ b/Makefile.in
@@ -104,8 +104,9 @@
 	-@rm -f $@
 	notangle -R'"array.h"' array.w | $(NOIDENT) | cpif array.h
 
+BUILD_CC ?= gcc
 scancode.c :  $(srcdir)/makescan.c  scancode.h nstd.h config.h
-	@ECHO_LD@$(CC) $(CFLAGS) $(CPPFLAGS) -o makescan.exe $(srcdir)/makescan.c
+	@ECHO_LD@$(BUILD_CC) $(BUILD_CFLAGS) $(BUILD_CPPFLAGS) -o makescan.exe $(srcdir)/makescan.c
 	rm -f scancode.c
 	./makescan.exe > scancode.c
 	rm makescan.exe