Duplicate definitions of __NFDBITS, __FDELT, __FDMASK
Wed Jun 13 19:32:00 GMT 2001
> Bill, here's a good one for you....
> Unfortunately when I try to build up util-linux-2.11 to create the
> mount utilities and friends, the compiliation complains that
> __NFDBITS and __FDMASK() are being redefined. It turns out that the
> <sys/select.h> in glibc-2.2.2 (misc/sys/select.h) doesn't check to
> see if they have been defined before, and in this case they were
> already defined because <linux/posix_type.h> defined them. Now the
> big question is who should define them????
According to the comments at the top of posix_type.h, NFDBITS is the
bit size of the OS's file descriptor. Since the OS must implement and
understand a file descriptor, it *seems* like glibc should defer to
Ooh! I just glanced at your build log again (thanks very much for
including useful information with your question!), and noticed that it
mentions sys-include. I always torch that directory after building a
linux/glibc setup, because I get all kinds of confusing behavior
(Does build-crossgcc.sh leave sys-include around? Shame on me!)
I think the actual problem relates to the fixincludes confusion that
Kai has been describing lately. See, Kai: I *do* read your posts!
Move sys-include out of the way, and try again. I can't imagine that
such an error would have gone unnoticed in glibc, so I'm thinking that
sys-include is the culprit here.
HTH, anyone else have anything to add?
Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/
Want to unsubscribe? Send a note to email@example.com
More information about the crossgcc