Bug#948937: gr-fcdproplus FTBFS missing build-dependencies on dh-python and liborc-0.4-dev

[peter green <plugwash@p10link.net>]

Package: gr-fcdproplus
Version: 3.8~20190817-2
Severity: serious
Tags: patch.

gr-fcdproplus fails to build due to a missing dh-python, I initially noticed this on a raspbian autobuilder, but it's also happening on the reproducible builds site, so it's not raspbian specific.

> dh: unable to load addon python3: Can't locate Debian/Debhelper/Sequence/python3.pm in @INC (you may need to install the Debian::Debhelper::Sequence::python3 module) (@INC contains: /etc/perl /usr/local/lib/arm-linux-gnueabihf/perl/5.30.0 /usr/local/share/perl/5.30.0 /usr/lib/arm-linux-gnueabihf/perl5/5.30 /usr/share/perl5 /usr/lib/arm-linux-gnueabihf/perl/5.30 /usr/share/perl/5.30 /usr/local/lib/site_perl /usr/lib/arm-linux-gnueabihf/perl-base) at (eval 16) line 1.
> BEGIN failed--compilation aborted at (eval 16) line 1.
>       
      The fix for that was easy, just add the build-dependency on
      dh-python.
      
      However when I tried to build it with the build-dependency added I
      got another build failure.
      
> [ 47%] Built target doxygen_target
>         make[3]: *** No rule to make target
>         '/usr/lib/arm-linux-gnueabihf/liborc-0.4.so', needed by
>         'lib/libgnuradio-fcdproplus.so.3.8.0.0'.  Stop.
>         make[3]: *** Waiting for unfinished jobs....
>

Again this was a missing build-dependency, this time on liborc-0.4-dev

After adding the build-dependencies on dh-python and liborc-0.4-dev I was able to get a succesful build. However my build environment was not clean, so it is possible that there were other missing build-dependencies I missed.