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Re: Kernel header changes break glibc build
On Wed, Dec 06, 2006 at 01:51:07PM +0000, David Woodhouse wrote:
> On Wed, 2006-12-06 at 14:43 +0100, Jakub Jelinek wrote:
> >
> > +/* 2.6.19 kernel headers helpfully removed some macros and
> > + moved lots of stuff into new headers, some of which aren't
> > + included by linux/rtnetlink.h. */
> > +
> > +#ifndef IFA_MAX
> > +struct ifaddrmsg
> > +{
> > + uint8_t ifa_family;
> > + uint8_t ifa_prefixlen;
> > + uint8_t ifa_flags;
> > + uint8_t ifa_scope;
> > + uint32_t ifa_index;
> > +};
> > +
> > +enum
> > +{
> > + IFA_UNSPEC,
> > + IFA_ADDRESS,
> > + IFA_LOCAL,
> > + IFA_LABEL,
> > + IFA_BROADCAST,
> > + IFA_ANYCAST,
> > + IFA_CACHEINFO,
> > + IFA_MULTICAST
> > +};
> > +#endif
> > +
> > +#ifndef IFA_F_SECONDARY
> > +# define IFA_F_SECONDARY 0x01
> > +# define IFA_F_TEMPORARY IFA_F_SECONDARY
> > +# define IFA_F_HOMEADDRESS 0x10
> > +# define IFA_F_DEPRECATED 0x20
> > +#endif
>
> This much is still available from the new <linux/if_addr.h> -- you could
> include that directly instead of copying it.
Yes, but as I said, I'd need to add configure checks for that, using
#include <linux/if_addr.h>
alone breaks build with older headers.
glibc so far managed to build without a single configure check for header
existence, this would be the first place where something like that is
needed.
Jakub