RFC: Adding a check to the top level configure script for a binary-mounted cygwin-hosted build directory

[Nick Clifton <nickc@redhat.com>]

Hi Paolo, Hi Alex,

  May I ask for your advice on a configure script matter ?

  The Binutils bug PR 4334 has pointed out the problems of trying to
  build a toolchain under Cygwin with a build directory mounted in
  text mode.  So, I think that it is agreed that toolchains should
  only be built on bin-mounted drives and I would like the configure
  script to make sure that this happens.

  I am attaching a provisional patch which I think will do what I
  want, but I would like to get your comments it.  I tested the
  patch under both Cygwin and Linux, and it does not appear to
  introduce any new problems, so I am reasonably confident that it
  works.  But I am not at all sure that I have used the best approach
  to the problem.  Your comments ?

Cheers
  Nick

ChangeLog
2007-05-23  Nick Clifton  <nickc@redhat.com>

	* configure.ac: Call ACX_CHECK_CYGWIN_MOUNTED_BUILDDIR for
	Cygwin based hosts.
        * configure: Regenerate.

config/ChangeLog
2007-05-23  Nick Clifton  <nickc@redhat.com>

	* acx.m4 (ACX_CHECK_CYGWIN_MOUNTED_BUILDDIR): Define.