autotools bugfix: handle missing config.guess (#17356)
Spack was attempting to calculate abspath on the located config.guess path even when it was not found (None); this commit skips the abspath calculation when config.guess is not found.
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@ -122,10 +122,10 @@ def _do_patch_config_files(self):
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# Then search in all sub directories recursively.
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# We would like to use AC_CONFIG_AUX_DIR, but not all packages
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# ship with their configure.in or configure.ac.
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config_path = next((os.path.join(r, f)
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config_path = next((os.path.abspath(os.path.join(r, f))
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for r, ds, fs in os.walk('.') for f in fs
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if f == config_file), None)
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my_config_files[config_name] = os.path.abspath(config_path)
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my_config_files[config_name] = config_path
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if my_config_files[config_name] is not None:
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try:
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