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[Matthias Andree <1371899@xxxxxxxxxxxxxxxxxx>]

More importantly, -fuse-ld=gold per apt-get changelog binutils, here,
does NOT work:

binutils (2.23.52.20130722-1) unstable; urgency=low

  * New upstream snapshot.
    - Fix PR ld/15762, glibc being built without warning sections.
  * Set the libdir for arm64 to lib, not lib64.
  * Stop building the binutils-gold package, let binutils provide
    binutils-gold.  Packages requiring gold should explicity pass
    -fuse-ld=gold to the compiler, packages requiring the bfd linker
    should pass -fuse-ld=bfd to the compiler.
  * Refresh patches.

 -- Matthias Klose <doko@xxxxxxxxxx>  Mon, 22 Jul 2013 21:13:32 +0200

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Packages, which is subscribed to llvm-toolchain-3.4 in Ubuntu.
https://bugs.launchpad.net/bugs/1371899

Title:
  clang++ -flto fails to work unless -B /usr/lib/gold-ld is given

Status in “llvm-toolchain-3.4” package in Ubuntu:
  New

Bug description:
  clang++ -flto does not seem to configure everything properly:

  $ clang++ -stdlib=libc++ try.cpp -O3 -flto -Wall -Wextra 
  /tmp/try-1083b9.o: file not recognized: Dateiformat nicht erkannt
  clang: error: linker command failed with exit code 1 (use -v to see invocation)

  $ clang++ -stdlib=libc++ try.cpp -O3 -flto -Wall -Wextra -B/usr/lib/gold-ld
  however, works properly.

  See the attached files for output from the same commands with "-v"
  added on the respective command lines.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: clang-3.4 1:3.4-1ubuntu3
  ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
  Uname: Linux 3.13.0-35-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.4
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Sat Sep 20 12:53:53 2014
  SourcePackage: llvm-toolchain-3.4
  UpgradeStatus: Upgraded to trusty on 2014-08-29 (21 days ago)

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