Index: /trunk/src/VBox/HostServices/SharedOpenGL/Makefile.kmk
===================================================================
--- /trunk/src/VBox/HostServices/SharedOpenGL/Makefile.kmk	(revision 51671)
+++ /trunk/src/VBox/HostServices/SharedOpenGL/Makefile.kmk	(revision 51672)
@@ -50,5 +50,5 @@
 ifdef VBOX_WITH_XPCOM
  VBoxSharedCrOpenGL_DEFS = VBOX_WITH_XPCOM
- VBoxSharedCrOpenGL_CXXFLAGS = -Wno-non-virtual-dtor
+ VBoxSharedCrOpenGL_CXXFLAGS = -Wno-non-virtual-dtor -fshort-wchar
 endif
 VBoxSharedCrOpenGL_INTERMEDIATES = \