When I try to use "build" from
https://download.opensuse.org/repositories/openSUSE:Tools/Fedora_30/openSUSE:Tools.repo
I get errors about missing perl packages:

[    0s] processing recipe /home/brian/daos/rpm/openpa/openpa.spec ...
[    0s] init_buildsystem --configdir /usr/lib/build/configs --cachedir
/var/cache/build --repository
http://download.opensuse.org/distribution/leap/15.1/repo/oss/
/home/brian/daos/rpm/openpa/openpa.spec ...
[    0s] initializing /var/tmp/build-root/.srcfiles.cache ...
[    0s] /usr/lib/build/createrepomddeps --cachedir=/var/cache/build
http://download.opensuse.org/distribution/leap/15.1/repo/oss/
[    1s] Can't locate XML/Parser.pm in @INC (you may need to install the
XML::Parser module) (@INC contains: /usr/lib/build /usr/local/lib64/perl5
/usr/local/share/perl5 /usr/lib64/perl5/vendor_perl
/usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5) at
/usr/lib/build/Build/Rpmmd.pm line 27.
[    1s] BEGIN failed--compilation aborted at /usr/lib/build/Build/Rpmmd.pm
line 27.
[    1s] Compilation failed in require at /usr/lib/build/createrepomddeps line
32.
[    1s] BEGIN failed--compilation aborted at /usr/lib/build/createrepomddeps
line 32.

And then:

[    0s] processing recipe /home/brian/daos/rpm/openpa/openpa.spec ...
[    0s] init_buildsystem --configdir /usr/lib/build/configs --cachedir
/var/cache/build --repository
http://download.opensuse.org/distribution/leap/15.1/repo/oss/
/home/brian/daos/rpm/openpa/openpa.spec ...
[    0s] initializing /var/tmp/build-root/.srcfiles.cache ...
[    0s] /usr/lib/build/createrepomddeps --cachedir=/var/cache/build
http://download.opensuse.org/distribution/leap/15.1/repo/oss/
[    0s] Can't locate LWP/UserAgent.pm in @INC (you may need to install the
LWP::UserAgent module) (@INC contains: /usr/lib/build /usr/local/lib64/perl5
/usr/local/share/perl5 /usr/lib64/perl5/vendor_perl
/usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5) at
/usr/lib/build/download line 27.
[    0s] BEGIN failed--compilation aborted at /usr/lib/build/download line 27.

These should be installed as Requires: dependencies in the build RPM.  On
Fedora they are perl-XML-Parser and perl-libwww-perl.