Re: [PATCH] Set errno to EEXIST if mkdir returns EACCES or EPERM

Junio C Hamano, Mon, Jan 30, 2006 21:33:51 +0100:

and have current callers of mkdir() use it, regardless of the
platform.  It may not worth saving mkdir_errno, though.

errno may be worth saving. I find the process of finding
"why-the-f$%^-did-the-windows-broke-again" really tedious:
1. find the application which failed (grep for the die message)
2. put "%s", strerror(errno) in the die
3. retest
4. find out errno is 0 (success)
5. remove close(fd), munmap, whatever before the die
6. retest
7. repeat

Then everybody but entry.c one would say force=0, and entry.c
one passes force appropriately using the condition it uses in
its current if() statement.

I like it :)