[...]

ror: Macro %_builddir has empty body
error: Macro %_builddir has empty body
Executing(--clean): env -i TMP=/home/users/builder/tmp HOME=/home/users/builder PATH=/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin TMPDIR=/home/users/builder/tmp  /bin/sh -e /home/users/builder/tmp/rpm-tmp.72941
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf apache-ant-1.10.1
Begin-TLD-Builder-Info
Build-Time: user:1.15s sys:0.23s real:5.39s (faults io:0 non-io:111238)
Files queued for ftp:
   3854367 ant-1.10.1-1.src.rpm
       182 ant-1.10.1-1.src.rpm.uploadinfo
End-TLD-Builder-Info