[...]

    line 47: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm
    line 48: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm-static
real 0.07
user 0.05
sys 0.01
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
warning: line 22: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm
warning: line 47: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm
warning: line 48: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm-static
No conditional flags passed
from available:
--with   :	
--without:	 python
Available branches: master
yasm-1.3.0.tar.gz having proper md5sum already exists
./builder[2768]: ulimit: unlimited exceeds allowable coredump(blocks) limit
Updating .distbcond
warning: line 22: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm
warning: line 47: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm
warning: line 48: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm-static
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/yasm-1.3.0-3.src.rpm
RPM build warnings:
    line 22: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm
    line 47: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm
    line 48: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm-static
real 0.07
user 0.06
sys 0.01
warning: line 22: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm
warning: line 47: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm
warning: line 48: It's not recommended to have unversioned Obsoletes: Obsoletes:	libyasm-static
Writing git revision for tag tld/yasm-1.3.0-3
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:0.97s sys:0.32s real:3.02s (faults io:3 non-io:172380)
Files queued for ftp:
   1476470 yasm-1.3.0-3.src.rpm
       182 yasm-1.3.0-3.src.rpm.uploadinfo
End-TLD-Builder-Info