[Octave-bug-tracker] [bug #53049] Warnings during MXE compile

[Rik]

URL:
  <http://savannah.gnu.org/bugs/?53049>

                 Summary: Warnings during MXE compile
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Fri 02 Feb 2018 01:35:27 PM PST
                Category: Configuration and Build System
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Microsoft Windows

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Details:

Looking at the log for compiling Octave with MXE I find


/home/rik/wip/Projects_Mine/mxe-octave/tmp-default-octave/octave-4.3.0+/liboctave/wrappers/signal-wrappers.c:
In function 'signal_watcher':
/home/rik/wip/Projects_Mine/mxe-octave/tmp-default-octave/octave-4.3.0+/liboctave/wrappers/signal-wrappers.c:667:11:
warning: implicit declaration of function 'sigwait'; did you mean 'signal'?
[-Wimplicit-function-declaration]
       if (sigwait (async_signals, &sig_caught))
           ^~~~~~~
           signal
At top level:
/home/rik/wip/Projects_Mine/mxe-octave/tmp-default-octave/octave-4.3.0+/liboctave/wrappers/signal-wrappers.c:655:1:
warning: 'signal_watcher' defined but not used [-Wunused-function]
 signal_watcher (void *arg)


Something is obviously different about the Windows environment, because I
don't get thes warnings when doing a native compile on Linux, and sigwait is
supposed to be in <signal.h> which is getting included, from what I can tell.




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