Description of problem:

I am reporting this despite using rpmbuild --sign is already documented as deprecated.


# rpm -q rpm rpm-sign
rpm-4.14.2-9.el8.x86_64
rpm-sign-4.14.2-9.el8.x86_64

$ rpmbuild --quiet -bb --sign /mnt/tests/CoreOS/rpm/Regression/rpmbuild-ignores-sign-if-quiet-is-used/bz1293483pkg.spec
/sbin/ldconfig: Warning: ignoring configuration file that cannot be opened: rpmsign: no arguments given

while

$ rpmbuild -v -bb --sign /mnt/tests/CoreOS/rpm/Regression/rpmbuild-ignores-sign-if-quiet-is-used/bz1293483pkg.spec
+ umask 022
+ cd /home/bz1293483user/rpmbuild/BUILD
+ touch /tmp/bz1293483pkg.tmp
+ cp /tmp/bz1293483pkg.tmp .
+ exit 0
+ umask 022
+ cd /home/bz1293483user/rpmbuild/BUILD
+ '[' /home/bz1293483user/rpmbuild/BUILDROOT/bz1293483pkg-1.0-1.x86_64 '!=' / ']'
+ rm -rf /home/bz1293483user/rpmbuild/BUILDROOT/bz1293483pkg-1.0-1.x86_64
++ dirname /home/bz1293483user/rpmbuild/BUILDROOT/bz1293483pkg-1.0-1.x86_64
+ mkdir -p /home/bz1293483user/rpmbuild/BUILDROOT
+ mkdir /home/bz1293483user/rpmbuild/BUILDROOT/bz1293483pkg-1.0-1.x86_64
+ mkdir -p /home/bz1293483user/rpmbuild/BUILDROOT/bz1293483pkg-1.0-1.x86_64/usr/local/
+ mv bz1293483pkg.tmp /home/bz1293483user/rpmbuild/BUILDROOT/bz1293483pkg-1.0-1.x86_64/usr/local/
+ /usr/lib/rpm/check-buildroot
+ /usr/lib/rpm/redhat/brp-ldconfig
/sbin/ldconfig: Warning: ignoring configuration file that cannot be opened: /etc/ld.so.conf: No such file or directory
+ /usr/lib/rpm/brp-compress
+ /usr/lib/rpm/brp-strip /usr/bin/strip
+ /usr/lib/rpm/brp-strip-comment-note /usr/bin/strip /usr/bin/objdump
+ /usr/lib/rpm/brp-strip-static-archive /usr/bin/strip
+ /usr/lib/rpm/brp-python-bytecompile 1
+ /usr/lib/rpm/brp-python-hardlink
+ PYTHON3=/usr/libexec/platform-python
+ /usr/lib/rpm/redhat/brp-mangle-shebangs
+ umask 022
+ cd /home/bz1293483user/rpmbuild/BUILD
+ /usr/bin/rm -rf /home/bz1293483user/rpmbuild/BUILDROOT/bz1293483pkg-1.0-1.x86_64
+ exit 0
/home/bz1293483user/rpmbuild/RPMS/noarch/bz1293483pkg-1.0-1.noarch.rpm:
Enter passphrase: 

built rpm file should be signed even when --quiet option is used.

This is similar although possibly not related to bug 1293483.