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-rw-r--r--utils/lit/lit/llvm/config.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/utils/lit/lit/llvm/config.py b/utils/lit/lit/llvm/config.py
index d1f368d0d83..d2db46135ad 100644
--- a/utils/lit/lit/llvm/config.py
+++ b/utils/lit/lit/llvm/config.py
@@ -27,7 +27,8 @@ class LLVMConfig(object):
path = self.lit_config.getToolsPath(config.lit_tools_dir,
config.environment['PATH'],
['cmp.exe', 'grep.exe', 'sed.exe'])
- self.with_environment('PATH', path, append_path=True)
+ if path is not None:
+ self.with_environment('PATH', path, append_path=True)
self.use_lit_shell = True
# Choose between lit's internal shell pipeline runner and a real shell. If