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author | Marco Bubke <marco.bubke@qt.io> | 2017-01-04 13:00:43 +0100 |
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committer | Marco Bubke <marco.bubke@qt.io> | 2017-01-04 12:21:44 +0000 |
commit | 719e6e0aff413f11e525c375886b760410f20365 (patch) | |
tree | f7e4b9379560010bafca60145a036ec2efe9abf8 /README.md | |
parent | c9003ef265e0931d4648df3ae2508396e2a0b769 (diff) | |
download | qt-creator-719e6e0aff413f11e525c375886b760410f20365.tar.gz |
Fix README.md for linking with GCC >4 on Linux with Clang
Change-Id: Id0d1e4e5bc10adef96dd1d3afa65e3e4247f5815
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>
Diffstat (limited to 'README.md')
-rw-r--r-- | README.md | 17 |
1 files changed, 17 insertions, 0 deletions
@@ -216,6 +216,23 @@ shipped together with Qt Creator. In addition, the packages for Windows are faster due to profile-guided optimization. If the prebuilt packages do not match your configuration, you need to build LLVM/Clang manually. +If you use GCC 5 or higher on Linux, please do not use our LLVM package, but get +the package for your distribution. Our LLVM package is compiled with GCC 4, so +you get linking errors, because GCC 5 is using a C++ 11 conforming string +implementation, which is not used by GCC 4. To sum it up, do not mix GCC 5 and +GCC 4 binaries. On Ubuntu, you can download the package from +http://apt.llvm.org/ with: + + wget -O - http://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add - + sudo apt-add-repository "deb http://apt.llvm.org/`lsb_release -cs`/ llvm-toolchain-`lsb_release -cs`-3.9 main" + sudo apt-get update + sudo apt-get install libclang-3.9-dev + +There is a workaround to set _GLIBCXX_USE_CXX11_ABI to 1 or 0, but we recommend +to download the package from http://apt.llvm.org/. + + https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html + ### Building LLVM/Clang manually You need to install CMake in order to build LLVM/Clang. |