Public bug reported: 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) ** Affects: llvm-toolchain-3.4 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug third-party-packages trusty ** Attachment added: "Output of clang++ -stdlib=libc++ try.cpp -O3 -flto -Wall -Wextra -v 2>&1 | tee clang-without-B.txt" https://bugs.launchpad.net/bugs/1371899/+attachment/4209576/+files/clang-without-B.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1371899 Title: clang++ -flto fails to work unless -B /usr/lib/gold-ld is given To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/llvm-toolchain-3.4/+bug/1371899/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs