��Re��@s�ddlmZddlZddlZddlmZerTddlmZmZdd�Z dd�Z d d �Zdd�ZdS) �)�absolute_importN)�MYPY_CHECK_RUNNING)�Optional�TuplecCst�pt�S)z9Returns glibc version string, or None if not using glibc.)�glibc_version_string_confstr�glibc_version_string_ctypes�rr��/builddir/build/BUILDROOT/alt-python35-pip-20.2.4-5.el8.x86_64/opt/alt/python35/lib/python3.5/site-packages/pip/_internal/utils/glibc.py�glibc_version_stringsr c CsXtjdkrdSytjd�j�\}}Wntttfk rSdSYnX|S)z@Primary implementation of glibc_version_string using os.confstr.�win32N�CS_GNU_LIBC_VERSION)�sys�platform�os�confstr�split�AttributeError�OSError� ValueError)�_�versionrrr rs rcCs�yddl}Wntk r(dSYnX|jd�}y |j}Wntk r]dSYnX|j|_|�}t|t�s�|j d�}|S)z=Fallback implementation of glibc_version_string using ctypes.rN�ascii) �ctypes�ImportError�CDLL�gnu_get_libc_versionr�c_char_p�restype� isinstance�str�decode)r�process_namespacer�version_strrrr r's rcCs't�}|dkrdSd|fSdS)z�Try to determine the glibc version Returns a tuple of strings (lib, version) which default to empty strings in case the lookup fails. N��glibc)r#r#)r )� glibc_versionrrr �libc_verWs r&) � __future__rrr �pip._internal.utils.typingr�typingrrr rrr&rrrr �s0