[...]

building SRPM using: cd rpm/packages; nice -n 0 ./builder -nu -nm --nodeps --http --define '_tld_builder 1' -bs  -r HEAD   lzlib.spec 2>&1
builder: SMP make flags are set to -j2
Cloning into 'lzlib'...
Already up to date.
Available branches: master
--2025-03-25 18:02:17--  http://distfiles.pld-linux.org/by-md5/7/f/7f70f0b1f8b4cd0696f6bf394f81b114/lzlib-1.15.tar.lz
Resolving distfiles.pld-linux.org... 193.239.45.41
Connecting to distfiles.pld-linux.org|193.239.45.41|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 79993 (78K) [application/octet-stream]
Saving to: 'lzlib-1.15.tar.lz'
     0K .......... .......... .......... .......... .......... 64%  788K 0s
    50K .......... .......... ........                        100% 1.75M=0.08s
2025-03-25 18:02:17 (988 KB/s) - 'lzlib-1.15.tar.lz' saved [79993/79993]
./builder[2768]: ulimit: unlimited exceeds allowable coredump(blocks) limit
Updating .distbcond
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/lzlib-1.15-1.src.rpm
real 0.05
user 0.03
sys 0.01
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
Available branches: master
lzlib-1.15.tar.lz having proper md5sum already exists
./builder[2768]: ulimit: unlimited exceeds allowable coredump(blocks) limit
Updating .distbcond
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/lzlib-1.15-1.src.rpm
real 0.05
user 0.03
sys 0.01
Writing git revision for tag tld/lzlib-1.15-1
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:1.20s sys:0.72s real:3.40s (faults io:1 non-io:158361)
Files queued for ftp:
     95045 lzlib-1.15-1.src.rpm
       182 lzlib-1.15-1.src.rpm.uploadinfo
End-TLD-Builder-Info