[Bug lto/41529] New: LTO configuration should detect if the target is ELF

["dnovillo at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

>From http://gcc.gnu.org/ml/gcc-patches/2009-09/msg02106.html

> You enable LTO by default if a suitable libelf is found.  But what if
> libelf is present but the target for which GCC is being configured is not
> an ELF target?  Presumably LTO will not work in that case (i.e., it
> requires the target to be an ELF target rather than producing ELF files
> separate from the normal objects for that target)?  So shouldn't LTO be
> disabled for non-ELF targets even when libelf is present?  We discussed a
> patch to do that back in May (e.g.
> <http://gcc.gnu.org/ml/gcc-patches/2009-05/msg01609.html>); what happened
> to that?  (On the whole I think a blacklist of targets that are (a)
> supported by GCC and (b) not ELF is better than trying to list all ELF
> targets.  Certainly various ELF targets are missing from the list used to
> set is_elf for --enable-gold.)


-- 
           Summary: LTO configuration should detect if the target is ELF
           Product: gcc
           Version: lto
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: dnovillo at gcc dot gnu dot org
        ReportedBy: dnovillo at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41529