Index: build/make-kit-win32
==================================================================
--- build/make-kit-win32
+++ build/make-kit-win32
@@ -4,10 +4,8 @@
 CC=i586-mingw32msvc-gcc
 CXX=i586-mingw32msvc-g++
 RANLIB=i586-mingw32msvc-ranlib
 RC=i586-mingw32msvc-windres
 STRIP="${STRIP:-i586-mingw32msvc-strip}"
-CFLAGS="${CFLAGS} -D_USE_32BIT_TIME_T=1"
-CPPFLAGS="${CPPFLAGS} -D_USE_32BIT_TIME_T=1"
-export AR CC CXX RANLIB RC STRIP CFLAGS CPPFLAGS
+export AR CC CXX RANLIB RC STRIP
 
 ./kitcreator "$@" --host=i586-mingw32msvc

ADDED   tcl/patchscripts/win32-32bit-timet.sh
Index: tcl/patchscripts/win32-32bit-timet.sh
==================================================================
--- tcl/patchscripts/win32-32bit-timet.sh
+++ tcl/patchscripts/win32-32bit-timet.sh
@@ -0,0 +1,9 @@
+#! /usr/bin/env bash
+
+(
+	echo '#define _USE_32BIT_TIME_T 1'
+	cat generic/tcl.h
+) > generic/tcl.h.new
+cat generic/tcl.h.new > generic/tcl.h
+
+exit 0