k3b build error on x86_64

[Si Jones]

On Tue, 2004-12-14 at 13:26 -0600, Rex Dieter wrote:
> On Tue, 14 Dec 2004, Si Jones wrote:
> >
> > Am having a few problems building things, the first was mplayer, and now
> > it seems like k3b is having the exact same thing.
> ....
> > checking for X... libraries /usr/X11R6/lib, headers /usr/X11R6/include
> > checking for libXext... no
> > configure: error: We need a working libXext to proceed. Since configure
> > can't find it itself, we stop here assuming that make wouldn't find
> 
> Try
> ./configure --with-extra-libs=/usr/X11R6/%{_lib}
> 
> -- Rex
> 

am building it with the line

rpmbuild -bb /usr/src/redhat/SPECS/k3b.spec

is there anyway of passing that line to configure? or is there a config
for configure?