https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29931
Eric Gallager <egallager at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |egallager at gcc dot gnu.org
--- Comment #6 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Jorn Wolfgang Rennecke from comment #4)
> The bug is not fixed; the gcc.c patch has not been reviewed.
What about now, after r169891? As mentioned in the comment after you:
(In reply to simonb from comment #5)
> Author: simonb
> Date: Mon Feb 7 18:10:15 2011
> New Revision: 169891
>
> URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169891
> Log:
> Auto-detect suitable default behaviour for prefix canonicalization.
>
> Current gcc offers -no-canonical-prefixes to turn off realpath() for prefixes
> generated from the path used to address the gcc driver. This allows gcc to
> work in "symlink farm" installations, where every file in gcc is actually a
> symlink to its real contents. However, the flag has to be given explicitly.
> If not, the default is to use realpath() to create prefixes and the result
> is usually failure to find cc1[plus], f951, etc.
>
> This patch adds a check for a file as a way to auto-detect whether prefix
> canonicalization is appropriate or not. Detection can be overridden by
> using the -[no-]canonical-prefixes flags.
>
> The patch also completes the fix for PR/29931, adding code that covers the
> unadopted portion of this PR's attached patch.
>
> gcc/ChangeLog.google:
> 2011-02-07 Simon Baldwin <sim...@google.com>
>
> PR driver/29931
> * doc/invoke.texi: Adjust -[no-]canonical-prefixes documentation.
> * gcc.c (display_help): Help text for -[no-]canonical-prefixes.
> (driver_handle_option): Ignore OPT_canonical_prefixes.
> (process_command): Handle OPT_[no_]canonical_prefixes, auto-detect
> suitable default prefix canonicalization mode.
> * common.opt (canonical-prefixes): New flag.
>
> Google ref: 40029, 38719
>
>
> Modified:
> branches/google/integration/gcc/ChangeLog.google-integration
> branches/google/integration/gcc/common.opt
> branches/google/integration/gcc/doc/invoke.texi
> branches/google/integration/gcc/gcc.c
