[...]

Connecting to distfiles.pld-linux.org (distfiles.pld-linux.org)|193.239.45.41|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 675916 (660K) [application/octet-stream]
Saving to: 'libwnck-3.14.0.tar.xz'
     0K .......... .......... .......... .......... ..........  7%  900K 1s
    50K .......... .......... .......... .......... .......... 15% 1.69M 0s
   100K .......... .......... .......... .......... .......... 22% 1.73M 0s
   150K .......... .......... .......... .......... .......... 30% 1.77M 0s
   200K .......... .......... .......... .......... .......... 37% 11.5M 0s
   250K .......... .......... .......... .......... .......... 45% 2.01M 0s
   300K .......... .......... .......... .......... .......... 53% 11.5M 0s
   350K .......... .......... .......... .......... .......... 60% 10.8M 0s
   400K .......... .......... .......... .......... .......... 68% 2.30M 0s
   450K .......... .......... .......... .......... .......... 75% 11.5M 0s
   500K .......... .......... .......... .......... .......... 83% 10.8M 0s
   550K .......... .......... .......... .......... .......... 90% 11.6M 0s
   600K .......... .......... .......... .......... .......... 98% 3.75M 0s
   650K ..........                                            100% 13.4M=0.2s
2015-07-12 21:22:02 (2.86 MB/s) - 'libwnck-3.14.0.tar.xz' saved [675916/675916]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libwnck-3.14.0-3.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 apidocs static_libs
Writing git revision for tag auto/ti/libwnck-3.14.0-3
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.64695
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libwnck-3.14.0
Begin-PLD-Builder-Info
Build-Time: user:2.82s sys:1.35s real:9.56s (faults io:0 non-io:196264)
Files queued for ftp:
    682417 libwnck-3.14.0-3.src.rpm
       186 libwnck-3.14.0-3.src.rpm.uploadinfo
End-PLD-Builder-Info