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* Reverting r285406, which was a temporary workaround to get one of the ↵Aaron Ballman2016-11-141-5/+3
| | | | | | documentation bots upgraded to something newer than GCC 4.7. This restores the check for GCC 4.8. llvm-svn: 286822
* [cmake] Temporarily revert enforcement of minimum GCC version increaseTeresa Johnson2016-10-281-3/+5
| | | | | | | | | | | | | | | Summary: This is temporary, until bot that builds public facing LLVM documentation is upgraded. It reverts only the cmake change in r284497, but leaves the doc changes in place to preserve intent. Reviewers: aaron.ballman Subscribers: mgorny, llvm-commits Differential Revision: https://reviews.llvm.org/D26078 llvm-svn: 285406
* [docs] Increase minimum supported GCC version for building LLVM to 4.8Teresa Johnson2016-10-181-4/+4
| | | | | | | | | | | | | | | | | | | | Summary: The RFC proposal sent to increase the minimum required GCC version to 4.8 received a lot of support. See the following thread: http://lists.llvm.org/pipermail/llvm-dev/2016-October/105955.html, This patch implements that by updating the docs. I believe the references to libstdc++ 4.7 issues can be removed as well, please let me know if that is not the case or if they should be updated a different way. Reviewers: rengolin Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D25683 llvm-svn: 284497
* cmake: include what you useSaleem Abdulrasool2016-03-081-0/+2
| | | | | | | | Add a missing include. This is important in the case HandleLLVMOptions is included prior to the missing CheckCXXSourceCompiles or CheckCXXCompilerFlag which includes CheckCXXSourceCompiles. llvm-svn: 262949
* [cmake] Check the compiler version firstReid Kleckner2016-03-021-0/+50
Otherwise users get messages from CheckAtomic about missing libatomic instead of a sensible message that says "use GCC 4.7 or newer". I structured the change along the lines of HandleLLVMStdlib.cmake, so that the standalone build of Clang still gets the compiler version check. Reviewers: beanz Differential Revision: http://reviews.llvm.org/D17789 llvm-svn: 262491
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