[...]

building SRPM using: cd rpm/packages; nice -n 0 ./builder -nu -nm --nodeps --http -bs  -r HEAD  -Tp auto/ti/ -tt  xorg-lib-libXinerama.spec 2>&1
builder: SMP make flags are set to -j2
Cloning into 'xorg-lib-libXinerama'...
From git://git.pld-linux.org/packages/xorg-lib-libXinerama
 * [new ref]         refs/notes/commits -> refs/notes/commits
6cd4a2c93a8ff9869d817656ba96f5b15499fa7a
Already on 'master'
Your branch is up-to-date with 'origin/master'.
Already up-to-date.
Available branches: master
Searching for tag auto/ti/xorg-lib-libXinerama-1.1.3-2...
Searching for tag auto/ti/xorg-lib-libXinerama-1_1_3-2...
--2015-05-08 12:39:05--  http://distfiles.pld-linux.org/distfiles/by-md5/9/3/9336dc46ae3bf5f81c247f7131461efd/libXinerama-1.1.3.tar.bz2
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: 278026 (272K) [application/x-bzip2]
Saving to: 'libXinerama-1.1.3.tar.bz2'
     0K .......... .......... .......... .......... .......... 18%  812K 0s
    50K .......... .......... .......... .......... .......... 36% 1.52M 0s
   100K .......... .......... .......... .......... .......... 55% 1.58M 0s
   150K .......... .......... .......... .......... .......... 73% 1.70M 0s
   200K .......... .......... .......... .......... .......... 92% 11.5M 0s
   250K .......... .......... .                               100% 10.5M=0.2s
2015-05-08 12:39:05 (1.66 MB/s) - 'libXinerama-1.1.3.tar.bz2' saved [278026/278026]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/xorg-lib-libXinerama-1.1.3-2.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
Writing git revision for tag auto/ti/xorg-lib-libXinerama-1.1.3-2
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.23035
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf libXinerama-1.1.3
Begin-PLD-Builder-Info
Build-Time: user:2.70s sys:1.34s real:5.00s (faults io:0 non-io:194393)
Files queued for ftp:
    283227 xorg-lib-libXinerama-1.1.3-2.src.rpm
       198 xorg-lib-libXinerama-1.1.3-2.src.rpm.uploadinfo
End-PLD-Builder-Info