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N)r# r$ �exists)r$ r r r �_extant� s rI c C s t |�p tt||��p t| �S r )� _get_python_inc_posix_pythonrI �_get_python_inc_from_config� _get_python_inc_posix_prefix�r* � spec_prefixr< r r r �_get_python_inc_posix� s ��rO c C s2 t sdS | rtptS tj�td�d�}tj�|�S )z� Assume the executable is in the build directory. The pyconfig.h file should be in the same directory. Since the build directory may not be the source directory, use "srcdir" from the makefile to find the "Include" directory. N�srcdir�Include)� python_buildr0 r1 r# r$ r) �get_config_var�normpath)r< �incdirr r r rJ � s rJ c C s |du rt d| d �S dS )aj If no prefix was explicitly specified, provide the include directory from the config vars. 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