Re: Fwd: Building m4 fails under Interix-3.5

[Eric Blake]

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[adding bug-gnulib]

According to Thomas Klausner on 10/23/2008 3:18 PM:
> Aleksey Cheusov <address@hidden> has reported a problem with building
> m4-1.4.12 on Interix. Here's his mail:
> 
> ----- Forwarded message from Aleksey Cheusov <address@hidden> -----
> m4 required by autoconf fails under Interix-3.5
> 
> ===> Building for m4-1.4.12
> ...
> fatal-signal.c: In function `install_handlers':
> fatal-signal.c:189: error: `SA_NODEFER' undeclared (first use in this 
> function)
> fatal-signal.c:189: error: (Each undeclared identifier is reported only once
> fatal-signal.c:189: error: for each function it appears in.)
> *** Error code 1

Thanks for the report.  This means that the gnulib sigaction module (a
dependency of fatal-signal) has not yet been ported to Interix.  I don't
have access to Interix, so I'm not in a position to write the patch.  Care
to offer a hand?  In general, Interix developers are very much
under-represented on the gnulib lists, and without someone contributing to
gnulib who actually cares about this platform, we won't be able to promise
much portability to Interix, since it is a very far cry from Posix-compliant.

>    0 ~>grep SA_ /usr/include/*                           
>    /usr/include/signal.h:#define SA_NOCLDSTOP 0x00000001
>    /usr/include/signal.h:#define SA_RESTART   0x00000002
>    /usr/include/signal.h:#define SA_RESETHAND   0x00000004

Obviously, Interix does not meet the assumptions made for mingw, which is
the primary other system that is very lacking when it comes to sigaction
support.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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