Index: libitm/configure.tgt
===================================================================
--- libitm/configure.tgt	(revision 185988)
+++ libitm/configure.tgt	(working copy)
@@ -131,7 +131,8 @@
   *-*-gnu* | *-*-k*bsd*-gnu \
   | *-*-netbsd* | *-*-freebsd* | *-*-openbsd* \
   | *-*-solaris2* | *-*-sysv4* | *-*-hpux11* \
-  | *-*-darwin* | *-*-aix*)
+  | *-*-darwin* | *-*-aix* \
+  | *-*-mingw32 )
 	# POSIX system.  The OS is supported.
 	;;