[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
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@261229 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit 6606c7b50cbb4ec7eab4ecbebbbaaa049734bbd3)
diff --git a/lib/tsan/CMakeLists.txt b/lib/tsan/CMakeLists.txt
index 0e60cd3..f46c431 100644
--- a/lib/tsan/CMakeLists.txt
+++ b/lib/tsan/CMakeLists.txt
@@ -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*)
