diff options
Diffstat (limited to 'setup.py')
| -rw-r--r-- | setup.py | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -801,6 +801,18 @@ class PyBuildExt(build_ext): if env_val: parser = argparse.ArgumentParser() parser.add_argument(arg_name, dest="dirs", action="append") + + # To prevent argparse from raising an exception about any + # options in env_val that it mistakes for known option, we + # strip out all double dashes and any dashes followed by a + # character that is not for the option we are dealing with. + # + # Please note that order of the regex is important! We must + # strip out double-dashes first so that we don't end up with + # substituting "--Long" to "-Long" and thus lead to "ong" being + # used for a library directory. + env_val = re.sub(r'(^|\s+)-(-|(?!%s))' % arg_name[1], + ' ', env_val) options, _ = parser.parse_known_args(env_val.split()) if options.dirs: for directory in reversed(options.dirs): |