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fix missing extension in command path #13901

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9 changes: 9 additions & 0 deletions mesonbuild/programs.py
Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,15 @@ def __init__(self, name: str, command: T.Optional[T.List[str]] = None,
if ret:
self.command = ret + args
else:
if os.path.isabs(cmd) and not os.path.exists(cmd):
# Maybe the name is an absolute path to a native Windows
# executable, but without the extension. This is technically wrong,
# but many people do it because it works in the MinGW shell.
for ext in self.windows_exts:
trial_ext = f'{cmd}.{ext}'
if os.path.exists(trial_ext):
cmd = trial_ext
break
self.command = [cmd] + args
else:
if search_dirs is None:
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