[Bug bootstrap/30598] New: Misdetection of COMDAT group support

[Bug bootstrap/30598] New: Misdetection of COMDAT group support

[uwe at netbsd dot org]

We discovered this issue while importing newer gcc 4.1* into NetBSD tree and
saw that suddently it no longer thinks COMDAT is supported.

I've tracked it down to the following change:

    http://gcc.gnu.org/viewcvs?view=rev&revision=99395

that changed configure.ac to check $ld_date to decide if COMDAT is supported.


There are two problems with that change:

1) Released versions of binutils 2.16* do NOT have date in the ld version
string:

http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/ldver.c?rev=1.10&content-type=text/x-cvsweb-markup&cvsroot=src

    fprintf (stdout, _("GNU ld version %s\n"), BFD_VERSION_STRING);


2) The above change to confgiure unconditionally overrides
gcc_cv_as_comdat_group and gcc_cv_as_comdat_group_percent passed via
environment
so we cannot even work around the problem #1 by supplying correct values


-- 
           Summary: Misdetection of COMDAT group support
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: uwe at netbsd dot org
 GCC build triplet: i386--netbsdelf
  GCC host triplet: i386--netbsdelf
GCC target triplet: i386--netbsdelf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30598

[Bug bootstrap/30598] Misdetection of COMDAT group support

[uwe at netbsd dot org]

------- Comment #1 from uwe at netbsd dot org  2007-01-26 14:18 -------
On the second thought, I might be confused here.  Please, leave UNCONFIRMED.
I'll do more testing and get back with an update later today.  Sorry.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30598

[Bug bootstrap/30598] Misdetection of COMDAT group support

[uwe at netbsd dot org]

------- Comment #2 from uwe at netbsd dot org  2007-02-26 16:35 -------
(In reply to comment #1)
> On the second thought, I might be confused here.  Please, leave UNCONFIRMED.
> I'll do more testing and get back with an update later today.  Sorry.

That was a pilot error.  Please close.  Sorry for the fuss.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30598

[Bug bootstrap/30598] Misdetection of COMDAT group support

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2007-02-26 17:54 -------
Closing as works for me as requested by the reporter.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |WORKSFORME


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30598