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[PATCH/4.4 Regression/Take 2] Fix PR37660 libssp build failure during bootstrap on Cygwin.

From: "Dave Korn" <dave dot korn dot cygwin at googlemail dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: dannysmith at users dot sourceforge dot net, "Aaron W. LaFramboise" <aaronavay62 at aaronwl dot com>
Date: Tue, 20 Jan 2009 05:13:04 +0000
Subject: [PATCH/4.4 Regression/Take 2] Fix PR37660 libssp build failure during bootstrap on Cygwin.

Dave Korn wrote:

>   Danny has persuaded me off-list that the link-with-static-libgcc method
> will be more maintainable and robust, so I'm preparing a new patch on those
> lines instead.  Original patch withdrawn.

  Indeed.  Here's the new version.  Bootstraps (with shared libgcc both
enabled and disabled) now running.  I expect them to pass because I've been
through a couple of revisions tweaking this patch and they all passed.

  Touches only Cygwin-specific backend target header.  Assuming both
bootstraps succeed, OK for mainline?

gcc/ChangeLog

	PR bootstrap/37660
	* config/i386/cygwin.h (SHARED_LIBGCC_SPEC):  New helper macro.
	(LIBGCC_SPEC):  Don't define.
	(REAL_LIBGCC_SPEC):  Define instead, using SHARED_LIBGCC_SPEC.

    cheers,
      DaveK

Attachment: pr37660-take-2.diff
Description: Binary data

Follow-Ups:
- Re: [PATCH/4.4 Regression/Take 2] Fix PR37660 libssp build failure during bootstrap on Cygwin.
  - From: Danny Smith

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