Bug 717224 - Misc libraries fail to link on mingw due to missing -luserenv r=bbondy

configure.in

@@ -2536,7 +2536,7 @@ ia64*-hpux*)
         # Use temp file for windres (bug 213281)
         RCFLAGS='-O coff --use-temp-file'
         # mingw doesn't require kernel32, user32, and advapi32 explicitly
-        LIBS="$LIBS -luuid -lgdi32 -lwinmm -lwsock32"
+        LIBS="$LIBS -luuid -lgdi32 -lwinmm -lwsock32 -luserenv"
         MOZ_FIX_LINK_PATHS=
         DYNAMIC_XPCOM_LIBS='-L$(LIBXUL_DIST)/lib -lxpcom -lxpcom_core -lmozalloc'
         XPCOM_FROZEN_LDOPTS='-L$(LIBXUL_DIST)/lib -lxpcom -lmozalloc'