[Bug 44327] New: Wine-staging doesn' t compile with the Linux kernel 3.0. The problem in server-Realtime_Priority patch

https://bugs.winehq.org/show_bug.cgi?id=44327

Bug ID: 44327
           Summary: Wine-staging doesn't compile with the Linux kernel
                    3.0. The problem in server-Realtime_Priority patch
           Product: Wine-staging
           Version: 2.20
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail], [e-mail],
                    [e-mail]
      Distribution: ---

I have SUSE Enterprise Linux 11 SP4. There is Linux kernel 3.0. When I trying
to compile wine-staging using OBS (PPA analogue for openSUSE Linux), I have got
this error:

https://pastebin.com/qYm8nJ5t

scheduler.c: In function 'set_scheduler_priority':
scheduler.c:136:18: error: 'SCHED_IDLE' undeclared (first use in this function)
         policy = SCHED_IDLE;

It's very strange, but when I tried to reproduce it on a real machine, it was
successful compiled!

Wrote: /usr/src/packages/SRPMS/wine-staging-2.20-2.1.src.rpm
Wrote: /usr/src/packages/RPMS/x86_64/wine-staging-2.20-2.1.x86_64.rpm
Wrote: /usr/src/packages/RPMS/x86_64/wine-staging-devel-2.20-2.1.x86_64.rpm

I think, the reason is in harder compiler warning settings in the OBS build
system. So I will make tests on the OBS.

When I tried to search error message in Google, I'd found this page:
https://github.com/sysstat/sysstat/issues/26