Re: [PATCH][RFC] global errno considered harmful

Ralf Baechle
2001-12-31T15:43:16Z

On Sun, Dec 30, 2001 at 05:10:41PM -0500, Brian Gerst wrote:

> > As user application are trying to use unistd.h and expect errno to get
> > set properly unistd.h or at least it's syscallX macros will have to be
> > made unusable from userspace or silent breakage of such apps rebuild
> > against new headers will occur.
>
> Userspace should be using glibc's unistd.h. If it's using the kernel's,
> it's broken.

A sufficient number take the unavailability of new syscall in everybody's
glibc as a sufficient excuse for broken code. util-linux as a major
offender comes to mind or also e2fsprogs.

Ralf