1 files changed, 17 insertions, 0 deletions
diff --git a/test/tsan/libdispatch/lit.local.cfg b/test/tsan/libdispatch/lit.local.cfg
new file mode 100644
index 000000000..9d3cf7548
--- /dev/null
+++ b/test/tsan/libdispatch/lit.local.cfg
@@ -0,0 +1,17 @@
+def getRoot(config):
+  if not config.parent:
+    return config
+  return getRoot(config.parent)
+
+root = getRoot(config)
+
+if 'libdispatch' in root.available_features:
+  additional_cflags = ' -fblocks '
+  for index, (template, replacement) in enumerate(config.substitutions):
+    if template in ['%clang_tsan ', '%clangxx_tsan ']:
+      config.substitutions[index] = (template, replacement + additional_cflags)
+else:
+  config.unsupported = True
+
+if config.host_os == 'Darwin':
+  config.environment['TSAN_OPTIONS'] += ':ignore_noninstrumented_modules=1'