Bug#879980: antlr: FTBFS: dh: unable to load addon maven-repo-helper

[Aaron M. Ucko]

Source: antlr
Version: 2.7.7+dfsg-9
Severity: serious
Justification: fails to build from source (but built successfully in the past)

Builds of antlr in minimal environments geared for building only its
architecture-dependent binary packages (as on the autobuilders) have
started failing with errors along the lines of

  dh clean --with maven-repo-helper --with python2,python3
  dh: unable to load addon maven-repo-helper: Can't locate Debian/Debhelper/Sequence/maven_repo_helper.pm in @INC (you may need to install the Debian::Debhelper::Sequence::maven_repo_helper module) (@INC contains: /etc/perl /usr/local/lib/aarch64-linux-gnu/perl/5.26.0 /usr/local/share/perl/5.26.0 /usr/lib/aarch64-linux-gnu/perl5/5.26 /usr/share/perl5 /usr/lib/aarch64-linux-gnu/perl/5.26 /usr/share/perl/5.26 /usr/local/lib/site_perl /usr/lib/aarch64-linux-gnu/perl-base) at (eval 12) line 1.
  BEGIN failed--compilation aborted at (eval 12) line 1.

  debian/rules:8: recipe for target 'clean' failed
  make: *** [clean] Error 2

Please either conditionalize the usage of --with maven-repo-helper
appropriately or move maven-repo-helper to the main Build-Depends
field.

Thanks!

-- 
Aaron M. Ucko, KB1CJC (amu at alum.mit.edu, ucko at debian.org)
http://www.mit.edu/~amu/ | http://stuff.mit.edu/cgi/finger/?amu@monk.mit.edu