[...]

No conditional flags passed
from available:
--with   :	 bootstrap
--without:	
Available branches: AC-branch master
Searching for tag auto/ti/happy-1.19.2-1...
Searching for tag auto/ti/happy-1_19_2-1...
--2017-10-19 21:53:31--  http://distfiles.pld-linux.org/distfiles/by-md5/3/6/36602c3c6e3004f49754ea6c173d2c39/happy-1.19.2.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: 160831 (157K) [application/x-gzip]
Saving to: 'happy-1.19.2.tar.gz'
     0K .......... .......... .......... .......... .......... 31% 1.06M 0s
    50K .......... .......... .......... .......... .......... 63% 2.10M 0s
   100K .......... .......... .......... .......... .......... 95% 68.5M 0s
   150K .......                                               100%  106M=0.07s
2017-10-19 21:53:31 (2.18 MB/s) - 'happy-1.19.2.tar.gz' saved [160831/160831]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/happy-1.19.2-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	 bootstrap
--without:	
Writing git revision for tag auto/ti/happy-1.19.2-1
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.64206
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf happy-1.19.2
Begin-TLD-Builder-Info
Build-Time: user:0.73s sys:0.22s real:2.21s (faults io:0 non-io:92168)
Files queued for ftp:
    167748 happy-1.19.2-1.src.rpm
       184 happy-1.19.2-1.src.rpm.uploadinfo
End-TLD-Builder-Info