[...]

user 0.14
sys 0.01
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
warning: Macro expanded in comment on line 7: %{x8664} also possible, but requires multilib gnu-efi
warning: Macro expanded in comment on line 22: %{name}-%{version}.tar.xz
No conditional flags passed
from available:
--with   :	
--without:	 efi32 efi64
Available branches: AC-branch RA-branch master
syslinux-6.04-pre1.tar.xz having proper md5sum already exists
./builder[2756]: ulimit: unlimited exceeds allowable coredump(blocks) limit
warning: Macro expanded in comment on line 7: %{x8664} also possible, but requires multilib gnu-efi
warning: Macro expanded in comment on line 22: %{name}-%{version}.tar.xz
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/syslinux-6.04-2.src.rpm
RPM build warnings:
    Macro expanded in comment on line 7: %{x8664} also possible, but requires multilib gnu-efi
    Macro expanded in comment on line 22: %{name}-%{version}.tar.xz
real 0.15
user 0.15
sys 0.00
warning: Macro expanded in comment on line 7: %{x8664} also possible, but requires multilib gnu-efi
warning: Macro expanded in comment on line 22: %{name}-%{version}.tar.xz
Writing git revision for tag tld/syslinux-6.04-2
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:1.61s sys:0.42s real:3.68s (faults io:7 non-io:275009)
Files queued for ftp:
   5305315 syslinux-6.04-2.src.rpm
       185 syslinux-6.04-2.src.rpm.uploadinfo
End-TLD-Builder-Info