[...]

building SRPM using: cd rpm/packages; nice -n 0 ./builder -nu -nm --nodeps --http --define '_tld_builder 1' -bs  -r HEAD   iftop.spec 2>&1
builder: SMP make flags are set to -j2
Cloning into 'iftop'...
Already up to date.
Available branches: AC-branch RA-branch master
--2024-01-08 22:55:42--  http://distfiles.pld-linux.org/by-md5/7/e/7e6decb4958e8a4890cccac335239f24/iftop-1.0pre4.tar.gz
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: 204665 (200K) [application/x-gzip]
Saving to: 'iftop-1.0pre4.tar.gz'
     0K .......... .......... .......... .......... .......... 25%  722K 0s
    50K .......... .......... .......... .......... .......... 50% 1.45M 0s
   100K .......... .......... .......... .......... .......... 75% 2.53M 0s
   150K .......... .......... .......... .......... ......... 100% 3.28M=0.1s
2024-01-08 22:55:42 (1.42 MB/s) - 'iftop-1.0pre4.tar.gz' saved [204665/204665]
./builder[2756]: ulimit: unlimited exceeds allowable coredump(blocks) limit
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/iftop-1.0-0.pre4.1.src.rpm
real 0.03
user 0.02
sys 0.00
exit status 0
Writing package revision
builder: SMP make flags are set to -j2
Already up to date.
Available branches: AC-branch RA-branch master
iftop-1.0pre4.tar.gz having proper md5sum already exists
./builder[2756]: ulimit: unlimited exceeds allowable coredump(blocks) limit
Building target platforms: x86_64-linux
Building for target x86_64-linux
Wrote: /home/users/builder/rpm/SRPMS/iftop-1.0-0.pre4.1.src.rpm
real 0.03
user 0.03
sys 0.01
Writing git revision for tag tld/iftop-1.0-0.pre4.1
error: Macro %_builddir has empty body
Begin-TLD-Builder-Info
Build-Time: user:0.57s sys:0.41s real:2.53s (faults io:2 non-io:167895)
Files queued for ftp:
    216662 iftop-1.0-0.pre4.1.src.rpm
       188 iftop-1.0-0.pre4.1.src.rpm.uploadinfo
End-TLD-Builder-Info