[PATCH] [lld] Revive standalone CMake build

[Shankar Kalpathi Easwaran]

REPOSITORY
  rL LLVM

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Comment at: cmake/config-ix.cmake:6
@@ +5,2 @@
+int main() { return 0; }
+" HAVE_CXXABI_H)
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why is this being reimplemented ?

http://reviews.llvm.org/D7625

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