[...]

building SRPM using: cd rpm/packages; nice -n 0 ./builder -nu -nm --nodeps --http --define '_tld_builder 1' -bs  -r HEAD  -Tp auto/ti/ -tt   librdmacm.spec 2>&1
Cloning into 'librdmacm'...
From git://git.pld-linux.org/packages/librdmacm
 * [new ref]         refs/notes/commits -> refs/notes/commits
9d666a9cf38c388b22a23730b5592aafa6a75201
Already on 'master'
Your branch is up-to-date with 'origin/master'.
Already up-to-date.
Available branches: master
Searching for tag auto/ti/librdmacm-1.1.0-1...
Searching for tag auto/ti/librdmacm-1_1_0-1...
--2017-04-05 12:51:02--  http://distfiles.pld-linux.org/distfiles/by-md5/9/4/9459e523002978ef6e7b852e01d8b29e/librdmacm-1.1.0.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: 406442 (397K) [application/x-gzip]
Saving to: 'librdmacm-1.1.0.tar.gz'
     0K .......... .......... .......... .......... .......... 12% 1.05M 0s
    50K .......... .......... .......... .......... .......... 25% 2.06M 0s
   100K .......... .......... .......... .......... .......... 37% 64.9M 0s
   150K .......... .......... .......... .......... .......... 50% 68.9M 0s
   200K .......... .......... .......... .......... .......... 62% 2.15M 0s
   250K .......... .......... .......... .......... .......... 75% 91.8M 0s
   300K .......... .......... .......... .......... .......... 88%  170M 0s
   350K .......... .......... .......... .......... ......    100%  182M=0.1s
2017-04-05 12:51:02 (4.05 MB/s) - 'librdmacm-1.1.0.tar.gz' saved [406442/406442]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/librdmacm-1.1.0-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
Writing git revision for tag auto/ti/librdmacm-1.1.0-1
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.5453
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf librdmacm-1.1.0
Begin-TLD-Builder-Info
Build-Time: user:0.86s sys:0.33s real:2.51s (faults io:0 non-io:106820)
Files queued for ftp:
    412600 librdmacm-1.1.0-1.src.rpm
       187 librdmacm-1.1.0-1.src.rpm.uploadinfo
End-TLD-Builder-Info