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From: Junio C Hamano <junkio@cox.net>
Subject: Re: git --exec-path conversion
Date: Sat, 19 Nov 2005 04:04:40 -0800
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To: Marco Costalba <mcostalba@yahoo.it>
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	Costalba's message of "Sat, 19 Nov 2005 03:14:44 -0800 (PST)")
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Marco Costalba <mcostalba@yahoo.it> writes:

> if I understood correctly, git programs will be installed
> somewhere in $PATH for at least next two months.

I suspect things will stay in /usr/bin longer than that, but
futureproofing is good in any case.

Assuming you are writing things in C or C++:

 - run "git --exec-path" at the very beginning of main(),
 - read the output, prepend it to $PATH using setenv(3).

and I think you are done.  After this, your QGit::run("ls") and
QGit::run("git frotz") would not be affected (you still have
/usr/bin in your $PATH), and QGIT::run("git-frotz") would find
git-frotz installed somewhere outside /usr/bin.