Re: [PATCH] git.c: Re-introduce sane error messages on missing commands.

On Wednesday June 28th 2006 Johannes Schindelin wrote:

[PATCH] save errno in handle_alias()

git.c:main() relies on the value of errno being set by the last attempt to 
execute the command. However, if something goes awry in handle_alias(), 
that assumption is wrong. So restore errno before returning from 
handle_alias().

If we rely on the value of errno we should always immediately store it's
value anyway. On some neolithic systems like the "MSVCRT.DLL" C runtime
library on Windows (used by e.g. the Mingw compiler, don't know about
Cygwin) a lot of runtime functions actually even reset the value of
errno to 0 on success!
-- 
Marco Roeland