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[build-script] When building compiler-rt, follow LLVM's lead by speci… #2690

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gottesmm
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What's in this pull request?

Resolved bug number: (SR-)


Before merging this pull request to apple/swift repository:

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…fying that we are using LLVM's external project mechanism.

This matches the LLVM build more closely preventing potential build issues
coming up.

rdar://26284108

@gottesmm
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@swift-ci Please test

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@gottesmm
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@swift-ci Please test

gottesmm added 2 commits May 25, 2016 14:20
…t before the LLVM build.

When we are building LLVM create symlinks to the c++ headers. We need to do this
before building LLVM since compiler-rt depends on being built with the just
built clang compiler. These are normally put into place during the cmake step of
LLVM's build when libcxx is in tree... but we are not building llvm with libcxx
in tree when we build swift. So we need to do cmake's work here.

rdar://26284108
…fying that we are using LLVM's external project mechanism.

This matches the LLVM build more closely preventing potential build issues
coming up.

rdar://26284108
@gottesmm gottesmm force-pushed the specify_compiler_rt_uses_llvm_external_project_mechanism branch from 72222c3 to 3350551 Compare May 25, 2016 21:22
@gottesmm
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@swift-ci Please test

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The linux failure is unrelated.

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The linux failure is unrelated and the OS X test build compiler-rt correctly. Merging!

@gottesmm gottesmm merged commit 3661a0e into swiftlang:master May 26, 2016
@gottesmm gottesmm deleted the specify_compiler_rt_uses_llvm_external_project_mechanism branch May 26, 2016 00:19
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