libstdc++ testsuite fixes, 1

[Gabriel Dos Reis]

Mark Mitchell <mark@codesourcery.com> writes:

| >>>>> "Gabriel" == Gabriel Dos Reis <Gabriel.Dos-Reis@cmla.ens-cachan.fr> writes:
| 
|     Gabriel> The just-removed libstdc++.exp used to do the follwoing
| 
|     Gabriel>     # Get the source and the build directories.  set
|     Gabriel> src-dir [lookfor_file $srcdir libstdc++-v3] set build-dir
|     Gabriel> [lookfor_file $outdir libstdc++-v3]
| 
|     Gabriel> I'll prefer we get that functionality back.
| 
| nfortunately, I have some scripts that work with relative objdirs (I
| know, I know), and this breaks, the scripts will break, and that will
| be a pain.

Did this really break before this week-end?  I doubt it...

lookfor_file returns a relative path of libstdc++-v3.

Anyway, I'm for canonilizing the pathname.

-- Gaby