Add missing includes in pam_modutil.h

[Tomas Mraz]

In pam_modutil.h we use multiple types that are defined in header files
that are not included there. They should be included. See also bug
report: https://bugzilla.redhat.com/show_bug.cgi?id=789176

However I think that different includes than unistd.h should be
included.

Please review the attached patch.

[Thorsten Kukuk]

On Fri, Feb 10, Tomas Mraz wrote:
> In pam_modutil.h we use multiple types that are defined in header files
> that are not included there. They should be included. See also bug
> report: https://bugzilla.redhat.com/show_bug.cgi?id=789176
>
> However I think that different includes than unistd.h should be
> included.
>
> Please review the attached patch.

Fine with me.

[Dmitry V. Levin]

On Fri, Feb 10, 2012 at 08:57:04AM +0100, Tomas Mraz wrote:
> In pam_modutil.h we use multiple types that are defined in header files
> that are not included there. They should be included. See also bug
> report: https://bugzilla.redhat.com/show_bug.cgi?id=789176
>
> However I think that different includes than unistd.h should be
> included.
>
> Please review the attached patch.

Fine with me, too.