[...]

Connecting to distfiles.pld-linux.org (distfiles.pld-linux.org)|193.239.45.41|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 739163 (722K) [application/x-gzip]
Saving to: 'libpcap-1.8.1.tar.gz'
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   700K .......... .......... .                               100%  133M=0.1s
2017-03-30 11:14:27 (5.87 MB/s) - 'libpcap-1.8.1.tar.gz' saved [739163/739163]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libpcap-1.8.1-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	 pfring
--without:	 bluetooth
Writing git revision for tag auto/ti/libpcap-1.8.1-1
error: 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.88078
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libpcap-1.8.1
Begin-TLD-Builder-Info
Build-Time: user:1.00s sys:0.38s real:39.95s (faults io:0 non-io:115827)
Files queued for ftp:
    751942 libpcap-1.8.1-1.src.rpm
       185 libpcap-1.8.1-1.src.rpm.uploadinfo
End-TLD-Builder-Info