Building RPMS on 64 Bit

[brett at elsmob.com (Brett Elsmore)]

FDUG,

Has anyone had success building rpm's on 64 bit ?

I am getting the following error - 

Executing(%install): /bin/sh -e /var/tmp/rpm-tmp.38067
+ umask 022
+ cd /usr/src/redhat/BUILD
+ LANG=C
+ export LANG
+ unset DISPLAY
+ echo yes
+ echo yes
+ ./setup -b /usr/src/redhat/BUILD//opt/fedora-ds
/var/tmp/rpm-tmp.38067: line 30: ./setup: No such file or directory
error: Bad exit status from /var/tmp/rpm-tmp.38067 (%install)

When I look at the spec file, like 80 states - 
(echo yes ; echo yes) | ./setup -b $RPM_BUILD_ROOT/%{prefix}

Thanks for any assistance.