diff --git a/configure/os/CONFIG.win32-x86.win32-x86 b/configure/os/CONFIG.win32-x86.win32-x86
index d56bd6235..6def64ad2 100644
--- a/configure/os/CONFIG.win32-x86.win32-x86
+++ b/configure/os/CONFIG.win32-x86.win32-x86
@@ -31,6 +31,8 @@ BAFCMD = bscmake /nologo /o $@
 # Configure OS vendor C compiler
 CC = cl
 
+GNU = NO
+
 #
 # /W<N> use warning level N
 # (maximum (lint type) warnings at level 4)