[PATCH] D13739: [libcxx] Make libc++.so a linker script by default on most platforms.

[Eric Fiselier via cfe-commits]

EricWF created this revision.
EricWF added reviewers: mclow.lists, jroelofs, danalbert, compnerd.
EricWF added subscribers: cfe-commits, cbergstrom, rengolin, emaste.

This patch turns on `LIBCXX_ENABLE_ABI_LINKER_SCRIPT` by default whenever `LLVM_HAVE_LINK_VERSION_SCRIPT` is ON. This turns out to be whenever:

1. WIN32 is not defined.
2 UNIX is defined.
3. APPLE is not defined.

While `LLVM_HAVE_LINK_VERSION_SCRIPT` is meant to reflect exactly what we are asking I think it's close enough.

After committing this patch Linux users will no longer have to use "-lc++abi" explicitly!




http://reviews.llvm.org/D13739

Files:
  CMakeLists.txt
  cmake/Modules/HandleOutOfTreeLLVM.cmake
  docs/BuildingLibcxx.rst
  docs/UsingLibcxx.rst

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