[...]

No conditional flags passed
from available:
--with   :	
--without:	 tests
Available branches: AC-branch master
Searching for tag auto/ti/perl-Math-BigInt-GMP-1.37-3...
Searching for tag auto/ti/perl-Math-BigInt-GMP-1_37-3...
--2015-02-04 07:59:37--  http://distfiles.pld-linux.org/distfiles/by-md5/d/1/d11bf69c0471e38191f33144079d0373/Math-BigInt-GMP-1.37.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: 54520 (53K) [application/x-gzip]
Saving to: 'Math-BigInt-GMP-1.37.tar.gz'
     0K .......... .......... .......... .......... .......... 93%  527K 0s
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2015-02-04 07:59:37 (560 KB/s) - 'Math-BigInt-GMP-1.37.tar.gz' saved [54520/54520]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/perl-Math-BigInt-GMP-1.37-3.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
No conditional flags passed
from available:
--with   :	
--without:	 tests
Writing git revision for tag auto/ti/perl-Math-BigInt-GMP-1.37-3
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.95769
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf Math-BigInt-GMP-1.37
Begin-PLD-Builder-Info
Build-Time: user:2.77s sys:1.39s real:10.02s (faults io:0 non-io:178180)
Files queued for ftp:
     60679 perl-Math-BigInt-GMP-1.37-3.src.rpm
       197 perl-Math-BigInt-GMP-1.37-3.src.rpm.uploadinfo
End-PLD-Builder-Info