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Re: [libvirt] FreeBSD, no gcc present libvirt build issue

On Thu, Aug 29, 2013 at 8:33 AM, Jason Helfman <jgh freebsd org> wrote:
On Thu, Aug 29, 2013 at 8:08 AM, Eric Blake <eblake redhat com> wrote:
On 08/29/2013 08:58 AM, Jason Helfman wrote:
> Hello,
> There is an initiative at FreeBSD in removing gcc from base system and
> using CLANG. That being said, we are trying to resolve issues of ports that
> can't build without gcc. Libvirt fell into this group, and are curious if
> anyone has any ideas on why this breakage would occur.
> Here is a link to the buildlog:
> http://pb2.nyi.freebsd.org/bulk/nogcc-default/2013-08-26_21h09m25s/logs/errors/libvirt-1.1.1.log

The relevant section:

util/virrandom.c:75:1: error: bit-field '_gl_verify_error_if_negative'
has negative width (-1)
verify(((RAND_MAX + 1U) & RAND_MAX) == 0);
../gnulib/lib/verify.h:251:19: note: expanded from macro 'verify'
#define verify(R) _GL_VERIFY (R, "verify (" #R ")")
../gnulib/lib/verify.h:211:8: note: expanded from macro '_GL_VERIFY'
../gnulib/lib/verify.h:176:15: note: expanded from macro '_GL_VERIFY_TRUE'
   (!!sizeof (_GL_VERIFY_TYPE (R, DIAGNOSTIC)))
../gnulib/lib/verify.h:196:27: note: expanded from macro '_GL_VERIFY_TYPE'
    struct { unsigned int _gl_verify_error_if_negative: (R) ? 1 : -1; }
1 error generated.
gmake[3]: *** [libvirt_util_la-virrandom.lo] Error 1

What does RAND_MAX expand to?

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

stdlib.h:#define        RAND_MAX        0x7fffffff


And on our current head release (10) it is this:

#define RAND_MAX        0x7ffffffd

Sorry for the double-mail.

Jason Helfman          | FreeBSD Committer
jgh FreeBSD org     | http://people.freebsd.org/~jgh  | The Power to Serve

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