[...]

No conditional flags passed
from available:
--with   :	 gnutls
--without:	
Available branches: master
Searching for tag auto/ti/rtmpdump-2.3-4...
Searching for tag auto/ti/rtmpdump-2_3-4...
--2015-02-04 06:46:53--  http://distfiles.pld-linux.org/distfiles/by-md5/e/b/eb961f31cd55f0acf5aad1a7b900ef59/rtmpdump-2.3.tgz
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: 125103 (122K) [application/x-tgz]
Saving to: 'rtmpdump-2.3.tgz'
     0K .......... .......... .......... .......... .......... 40%  156K 0s
    50K .......... .......... .......... .......... .......... 81%  130K 0s
   100K .......... .......... ..                              100%  172K=0.8s
2015-02-04 06:46:54 (146 KB/s) - 'rtmpdump-2.3.tgz' saved [125103/125103]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/rtmpdump-2.3-4.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	 gnutls
--without:	
Writing git revision for tag auto/ti/rtmpdump-2.3-4
error: Macro %_builddir has empty body
error: Macro %_builddir has empty body
Executing(--clean):  env -i TMP=/home/users/builder/tmp PATH=/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin HOME=/home/users/builder TMPDIR=/home/users/builder/tmp  /bin/sh -e /home/users/builder/tmp/rpm-tmp.6999
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf rtmpdump-2.3
Begin-PLD-Builder-Info
Build-Time: user:2.75s sys:1.34s real:10.68s (faults io:0 non-io:213611)
Files queued for ftp:
    138196 rtmpdump-2.3-4.src.rpm
       184 rtmpdump-2.3-4.src.rpm.uploadinfo
End-PLD-Builder-Info