[...]

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: 10671 (10K) [application/x-gzip]
Saving to: 'libpng-1.6.48-apng.patch.gz'
     0K ..........                                            100%  665M=0s
2025-05-18 21:39:57 (665 MB/s) - 'libpng-1.6.48-apng.patch.gz' saved [10671/10671]
./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/libpng-1.6.48-1.src.rpm
real 0.10
user 0.08
sys 0.01
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
No conditional flags passed
from available:
--with   :	
--without:	 default_libpng static_libs tests
Available branches: DEVEL LIBPNG_1_2 LIBPNG_1_4 RA-branch libpng-1.6 master
libpng-1.6.48.tar.xz having proper md5sum already exists
libpng-1.6.48-apng.patch.gz 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/libpng-1.6.48-1.src.rpm
real 0.07
user 0.06
sys 0.01
Writing git revision for tag tld/libpng-1.6.48-1
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:1.65s sys:0.80s real:4.85s (faults io:3 non-io:235368)
Files queued for ftp:
   1092032 libpng-1.6.48-1.src.rpm
       185 libpng-1.6.48-1.src.rpm.uploadinfo
End-TLD-Builder-Info