PR v3/38923: symbol versioning disabled on Solaris due to sed.

[Jason Merrill]

On 09/22/2009 09:21 PM, Ralf Wildenhues wrote:
> 2009-09-23  Ralf Wildenhues<Ralf.Wildenhues@gmx.de>
>
> 	PR libstdc++/38923
> 	* acinclude.m4 (GLIBCXX_CHECK_LINKER_FEATURES): Avoid 'head',
> 	use sed script portable to Solaris /bin/sed for extracting ld
> 	version.
> 	* configure: Regenerate.

This patch broke symbol versioning on Fedora 11, and I'm surprised that 
the pattern would work on any target.

> +         sed -e 's/GNU g*o*ld v*e*r*s*i*o*n* *\(([^)]*)* *\) \([0-9.][0-9.]*\).*/\2/; q'`

The "\(([^)]* *\) " bit requires at minimum "( " which is not present in 
GNU ld --version on my system.

Jason