hg: build-infra/jdk7: Now finding the X11 header files works even when they are buried in

[fredrik.ohrstrom at oracle.com]

Changeset: e1d0a4dbf635
Author:    ohrstrom
Date:      2011-10-12 17:18 +0200
URL:       http://hg.openjdk.java.net/build-infra/jdk7/rev/e1d0a4dbf635

Now finding the X11 header files works even when they are buried in
the sysroot.

! common/config/spec.gmk.in
! configure
! configure.ac