I've been trying to rebuild rpm package "comps-4AS-0.20051001 for about 1 year. I've had no luck trying to determine was is required to build this src rpm. I've place below the message that I'm getting:

rpmbuild --rebuild comps-4AS-0.20051001.src.rpm
Installing comps-4AS-0.20051001.src.rpm
warning: group buildsys does not exist - using root
Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.17685
+ umask 022
+ cd /usr/src/redhat/BUILD
+ LANG=C
+ export LANG
+ unset DISPLAY
+ '[' -d '%{basedir}' ']'
+ echo 'This specfile needs access to %{basedir}'
This specfile needs access to %{basedir}
+ exit 1
error: Bad exit status from /var/tmp/rpm-tmp.17685 (%prep)

Does anyone know what is require to rebuild this Red Hat src rpm? I'm completely lose at this point. But I keep trying. I've successfully built the others but this one plus another have me completely puzzled.

Help

Thanks

Why not extract the spec file from it to find out?

How do I do that? I'm somewhat new to the Linux environment.