libsigsegv packaging problem
Eric Blake
eblake@redhat.com
Tue May 3 14:41:00 GMT 2011
[adding bug-libsigsegv]
On 05/03/2011 01:55 AM, Corinna Vinschen wrote:
> Hi Reini,
>
>
> I have a problem with the libsigsegv package. Right now the gawk
> maintainer started the testing cycle for the next gawk release, and the
> second time now the sigsegv.h header broke the build.
>
> The reason for the breakage is the same each time, sigsegv.h includes
> windows.h and thus clutters the namespace with stuff unexpected by a
> POSIX application:
>
> - The first time it was the definition of "WCHAR".
>
> - The second time it was the definition of "small"i, which, believe it
> or not, is defined as datatype in .
>
> - And there's still the definition of "min", which fortunately only
> produces a warning.
>
> AFAICS the only reason to include windows.h is to get the definition of
> the CONTEXT type which in turn is used to typedef stackoverflow_context_t.
This is the second time this issue has come up. I have previously
posted patches for the issue, (unfortunately, they predated the public
list archives at http://lists.gnu.org/archive/html/bug-libsigsegv/), but
that pre-dated my libsigsegv commit rights and no one else pushed them
at the time. I'm re-attaching the patch here; any objection from other
libsigsegv maintainers on applying it?
>
> Is it really necessary to expose this to the application? Wouldn't it
> be better to define stackoverflow_context_t to void * for applications?
> THus we can drop the unfortunate inclusion of windows.h and not clutter
> the POSIX namespace with Windows definitions.
That's what I argued when I wrote the patch a year ago April. Also, my
patch is available at http://repo.or.cz/w/libsigsegv/ericb.git, if Reini
would rather rebuild from there instead of the official upstream 2.10.
--
Eric Blake eblake@redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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