[...]

No conditional flags passed
from available:
--with   :	
--without:	 static_libs
Available branches: master
Searching for tag auto/ti/riemann-c-client-1.8.0-2...
Searching for tag auto/ti/riemann-c-client-1_8_0-2...
--2015-07-14 21:52:16--  http://distfiles.pld-linux.org/distfiles/by-md5/a/3/a34ab2ab8df56c4b4e30861a425f8c8d/riemann-c-client-1.8.0.tar.gz
Resolving distfiles.pld-linux.org (distfiles.pld-linux.org)... 193.239.45.41
Connecting to distfiles.pld-linux.org (distfiles.pld-linux.org)|193.239.45.41|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 68439 (67K) [application/x-gzip]
Saving to: 'riemann-c-client-1.8.0.tar.gz'
     0K .......... .......... .......... .......... .......... 74%  893K 0s
    50K .......... ......                                     100%  650K=0.08s
2015-07-14 21:52:16 (816 KB/s) - 'riemann-c-client-1.8.0.tar.gz' saved [68439/68439]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/riemann-c-client-1.8.0-2.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 static_libs
Writing git revision for tag auto/ti/riemann-c-client-1.8.0-2
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.36749
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf riemann-c-client-riemann-c-client-1.8.0
Begin-PLD-Builder-Info
Build-Time: user:2.52s sys:1.06s real:12.81s (faults io:153 non-io:164688)
Files queued for ftp:
     73449 riemann-c-client-1.8.0-2.src.rpm
       194 riemann-c-client-1.8.0-2.src.rpm.uploadinfo
End-PLD-Builder-Info