diff -r 000000000000 -r 6474c204b198 build/msys-perl-wrapper
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build/msys-perl-wrapper	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+#!/bin/sh
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+args=""
+
+for i in "${@}"
+do
+    case "$i" in
+    -I?:/*)
+        i="$(echo "${i}" | sed -e 's|^-I\(.\):/|-I/\1/|')"
+	;;
+    esac
+
+    args="${args} '${i}'"
+done
+
+eval "exec perl $args"