gnu ld version check in libstdc++-v3/acinclude.m4

[Richard Guenther]

On Tue, 20 Feb 2007, Richard Guenther wrote:

> On Tue, 20 Feb 2007, Richard Guenther wrote:
> 
> > On Tue, 20 Feb 2007, Joseph S. Myers wrote:
> > 
> > > On Tue, 20 Feb 2007, Richard Guenther wrote:
> > > 
> > > > !            sed -e 's/GNU ld version \(([^(]*)\)\? \?\([0-9.][0-9.]*\).*/\2/'`
> > > 
> > > It might be a good idea to remove the check for the word "version" here - 
> > > "version" is not part of the GNU Coding Standards --version output so 
> > > might go away.  Standard would be more like
> > > 
> > > GNU ld (GNU Binutils 2.17.50 20070220) 2.17.50
> > > 
> > > where the text after the last space is the real version number, and 
> > > --with-pkgversion replaces the "GNU Binutils 2.17.50 20070220" with your 
> > > name and version number for your binutils package.  I simply didn't fix 
> > > all pre-existing problems with --version output when adding 
> > > --with-pkgversion support.
> > 
> > That would make the regexp look like
> > 
> >   sed -e 's/GNU ld \(version \)\{0,1\}\(([^)]*) \)\{0,1\}\([0-9.][0-9.]*\).*/\3/'
> 
> Ok, so the following seems to be the agreed final version.  I bootstrapped
> it against one old and one new binutils version and checked that proper
> symbol versioning was used.
> 
> Ok for mainline and branches (I'll wait a few days with the backport)?

Also committed to the 4.2 branch now.

Richard.

> 2007-02-20  Richard Guenther  <rguenther@suse.de>
> 
> 	* acinclude.m4: Adjust regular expression for ld version extraction.
> 	* configure: Regenerate.