[...]

Searching for tag auto/ti/libb2-0_98_1-1...
--2019-09-21 15:36:23--  http://distfiles.pld-linux.org/by-md5/d/e/dedace2ae596f37752943d99392ed100/libb2-0.98.1.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: 534928 (522K) [application/x-gzip]
Saving to: 'libb2-0.98.1.tar.gz'
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2019-09-21 15:36:23 (2.50 MB/s) - 'libb2-0.98.1.tar.gz' saved [534928/534928]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/libb2-0.98.1-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 gomp static_libs
Writing git revision for tag auto/ti/libb2-0.98.1-1
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.27560
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libb2-0.98.1
Begin-TLD-Builder-Info
Build-Time: user:0.95s sys:0.26s real:3.40s (faults io:15 non-io:81880)
Files queued for ftp:
    539578 libb2-0.98.1-1.src.rpm
       184 libb2-0.98.1-1.src.rpm.uploadinfo
End-TLD-Builder-Info