[PATCH] D12209: [libcxx] Remove installation rules on Darwin when it would overwrite the system installation.

[Eric Fiselier via cfe-commits]

EricWF added inline comments.

================
Comment at: CMakeLists.txt:105
@@ +104,3 @@
+if (${CMAKE_SYSTEM_NAME} MATCHES "Darwin" AND NOT LIBCXX_OVERRIDE_DARWIN_INSTALL)
+  if ("${CMAKE_INSTALL_PREFIX}" STREQUAL "/usr")
+    message(WARNING "Disabling libc++ install rules because installation would "
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jroelofs wrote:
> I would check for "/usr/" too.
CMake canonicalizes `CMAKE_INSTALL_PREFIX` which includes removing the trailing slash. I tested this before submitting the patch.


http://reviews.llvm.org/D12209