Re: Bug in builtin function abspath (again)
%% Eli Zaretskii [EMAIL PROTECTED] writes: ez Incidentally, shouldn't we emulate realpath's failures in ez func_realpath on systems that don't have realpath? AFAIK, ez realpath fails if the file does not exist, so perhaps we should ez stat the result of abspath on such systems and return an NULL if ez it fails. ez WDYT? Actually, the man pages I've seen are not specific on this. They all say: The realpath function will resolve both absolute and relative paths and return the absolute pathname corresponding to pathname. All but the last component of pathname must exist when realpath is called. It's not immediately clear to me what all but the last component of pathname means; presumably it means that the directory containing the last filename in pathname must exist, but that the filename itself does not have to exist. I'd need to look at some sample implementations to see what that actually means. -- --- Paul D. Smith [EMAIL PROTECTED] Find some GNU make tips at: http://www.gnu.org http://make.paulandlesley.org Please remain calm...I may be mad, but I am a professional. --Mad Scientist ___ Bug-make mailing list Bug-make@gnu.org http://lists.gnu.org/mailman/listinfo/bug-make
Re: Bug in builtin function abspath (again)
Date: Tue, 30 May 2006 10:49:17 -0400 Cc: bug-make@gnu.org From: Paul D. Smith [EMAIL PROTECTED] The realpath function will resolve both absolute and relative paths and return the absolute pathname corresponding to pathname. All but the last component of pathname must exist when realpath is called. It's not immediately clear to me what all but the last component of pathname means; presumably it means that the directory containing the last filename in pathname must exist, but that the filename itself does not have to exist. Yes, that seems to be the meaning. But on platforms where there's no realpath, we currently use abspath that doesn't care whether that directory exists. Since Joe Random Hacker might not know whether her Make was built with or without realpath (and the docs don't even tell that realpath falls back on abspath), we should try to emulate realpath as close as we can, I think. I also thought about writing an emulation for realpath by using readlink. Unless I'm missing something, that shouldn't be too hard. ___ Bug-make mailing list Bug-make@gnu.org http://lists.gnu.org/mailman/listinfo/bug-make
