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r261229 | emaste | 2016-02-18 17:35:30 +0000 (Thu, 18 Feb 2016) | 10 lines

[tsan] Disable sysroot flag on FreeBSD

FreeBSD does not install a number of Clang-provided headers for the
compiler in the base system due to incompatibilities between FreeBSD's     
and Clang's versions. As a workaround do not use --sysroot=. on FreeBSD    
until this is addressed.

llvm.org/pr26651
Differential Revision:	http://reviews.llvm.org/D17383

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Index: lib/tsan/CMakeLists.txt
===================================================================
--- lib/tsan/CMakeLists.txt	(revision 261228)
+++ lib/tsan/CMakeLists.txt	(revision 261229)
@@ -192,7 +192,11 @@
 add_dependencies(compiler-rt tsan)
 
 # Make sure that non-platform-specific files don't include any system headers.
-if(COMPILER_RT_HAS_SYSROOT_FLAG)
+# FreeBSD does not install a number of Clang-provided headers for the compiler
+# in the base system due to incompatibilities between FreeBSD's and Clang's
+# versions. As a workaround do not use --sysroot=. on FreeBSD until this is
+# addressed.                                                        
+if(COMPILER_RT_HAS_SYSROOT_FLAG AND NOT CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
   file(GLOB _tsan_generic_sources rtl/tsan*)
   file(GLOB _tsan_platform_sources rtl/tsan*posix* rtl/tsan*mac*
                                    rtl/tsan*linux*)