[tsan] Skip building libcxx_tsan on OS X

The TSan-instrumented version of libcxx doesn't even build on OS X at this point. Let's skip it from the OS X build for now, since most of TSan functionality doesn't depend on it. This will enable `check-tsan` to be run.

Differential Revision: http://reviews.llvm.org/D14486

llvm-svn: 252455

compiler-rt/test/tsan/CMakeLists.txt

@@ -6,7 +6,8 @@ if(NOT COMPILER_RT_STANDALONE_BUILD)
   list(APPEND TSAN_TEST_DEPS tsan)
 endif()
 if(COMPILER_RT_HAS_LIBCXX_SOURCES AND
-   COMPILER_RT_TEST_COMPILER_ID STREQUAL "Clang")
+   COMPILER_RT_TEST_COMPILER_ID STREQUAL "Clang"
+   AND NOT APPLE)
   list(APPEND TSAN_TEST_DEPS libcxx_tsan)
   set(TSAN_HAS_LIBCXX True)
 else()