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Date: Fri, 16 Sep 2005 07:56:34 -0400
From: Jason Tishler <jason AT tishler DOT net>
To: cygwin AT cygwin DOT com
Subject: Re: Python extension package problem & root-cause
Message-ID: <20050916115634.GA1480@tishler.net>
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References: <1FA0F815-D70C-47E4-AEC0-AF21AC773F99 AT acm DOT org>
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John,

On Thu, Sep 15, 2005 at 10:54:32PM -0700, John Whitley wrote:
> The test "string.find(...) != -1" attempts to test whether "/usr"
> appears in the full executable name.  This incorrectly fails in the
> case that /bin is in the user's path before /usr/bin
> (i.e. string.find("/bin/python","/usr") == -1).  Note that a vagary of
> Cygwin is that /usr/bin is a Cygwin mount to /bin.

Thank you very much for the detailed analysis!

> Workaround:
> 
> The workaround is to ensure that /usr/bin appears in your path before
> /bin. It looks like a new and improved Cygwin special case test is
> needed to fix this problem; I'm not sure offhand what the best case
> would be. Perhaps an outright test as follows would work:
> sys.executable.startswith(sys.exec_prefix) or
> sys.executable.startswith(os.sep+"bin")

Unfortunately, I'm not sure what is the best way to solve this problem.
I will try to get a discussion going on SF...

Thanks,
Jason

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