[Webkit-unassigned] [Bug 97009] New: [Qt] Gold linker isn't used on Ubuntu

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=97009

           Summary: [Qt] Gold linker isn't used on Ubuntu
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: Qt, QtTriaged
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ossy at webkit.org
                CC: hausmann at webkit.org, vestbo at webkit.org,
                    zarvai at inf.u-szeged.hu


Tools/qmake/mkspecs/features/unix/default_post.prf:
----------------------------------------------------
!scratchbox:!mac:exists(/usr/bin/ld.gold) {
    # Upstream gcc 4.7 does not support the -fuse-ld=gold option ( see: http://sourceware.org/ml/binutils/2011-01/msg00178.html )
    isEqual(QT_GCC_MAJOR_VERSION, 4):lessThan(QT_GCC_MINOR_VERSION, 7):QMAKE_LFLAGS += -fuse-ld=gold
}

It seems -fuse-ld=gold doesn't work on Ubuntu 11.10 (maybe other distros and other Ubuntus have same problem)

http://manpages.ubuntu.com/manpages/oneiric/man1/arm-linux-gnueabi-gcc-4.4.1.html
----------------------------------------------------------------------------------
-fuse-ld=gold
    Use the gold linker instead of the default linker.  This option is
    only necessary if GCC has been configured with --enable-gold=both
    or --enable-gold=both/ld.  Note: Backported for Debian/Ubuntu from
    GCC 4.5.

-fuse-ld=bfd
    Use the ld.bfd linker instead of the default linker.  This option
    is only necessary if GCC has been configured with
    --enable-gold=both/gold.  Note: Backported for Debian/Ubuntu from
    GCC 4.5.

But the manualt of gcc doesn't contain this options - http://manpages.ubuntu.com/manpages/oneiric/man1/gcc-4.6.1.html
It seems Ubuntu's GCC doesn't build with this option, so -fuse-ld=gold won't work at all,
we need better way to force using gold linker.

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