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struct random on FreeBSD [was: [libvirt] FreeBSD-8.3 build failure for a

From: Eric Blake
Subject: struct random on FreeBSD [was: [libvirt] FreeBSD-8.3 build failure for amd64/i386, build archive included]
Date: Fri, 27 Sep 2013 05:57:21 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8

On 09/27/2013 01:35 AM, Michal Privoznik wrote:
> make[3]: Entering directory
> `/home/zippy/work/tmp/a/libvirt-1.1.2/gnulib/lib'
>   CC       allocator.lo
> In file included from allocator.c:4:0:
> ./stdlib.h:76:8: error: redefinition of 'struct random_data'
>  struct random_data
>         ^
> In file included from ./stdlib.h:36:0,
>                  from allocator.c:4:
> /usr/include/stdlib.h:349:8: note: originally defined here
>  struct random_data
>         ^
> In file included from /usr/include/sys/types.h:220:0,
>                  from ./sys/types.h:27,
>                  from /usr/include/stdlib.h:320,
>                  from ./stdlib.h:36,
>                  from allocator.c:4:
> There are a few more but of the same nature.
> The problem is, gnulib's stdlib.h defines the struct random_data. And so
> does the system's /usr/include/stdlib.h. Unfortunately, I'm not that
> familiar with gnulib to fix the issue myself. Eric, any thoughts on
> this? Is it possible that your recent gnulib update has fixed this?

That implies a bug in gnulib; I'll see if I can get it fixed today; we'd
need to update the gnulib submodule of libvirt to pull in the fix, so
hopefully I can get it done in time before the rc2 build is cut.  Can
you show me the config.log output related to detecting whether 'struct
random_data' exists?  Is this a case of circular header inclusion on
FreeBSD (that is, does <sys/types.h> try to recursively include
<stdlib.h> to pick up the struct?)

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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