Control: tags -1 + patch msgfmt has been fixed in gettext/0.19.8.1-6.
Now the build issue can be fixed wit this change to debian/rules: --- a/debian/rules +++ b/debian/rules @@ -11,7 +11,7 @@ override_dh_auto_test: override_dh_auto_build: # Add here commands to compile the package. - make JAR=fastjar JAVAC=${JAVA_HOME}/bin/javac JCFLAGS="-encoding utf8 -source 1.5 -Xlint:all" JAVA=java PREFIX=/usr all + make JAR=fastjar JAVAC=${JAVA_HOME}/bin/javac JCFLAGS="-encoding utf8 -source 1.8 -Xlint:all" JAVA=java PREFIX=/usr all override_dh_auto_clean: # Add here commands to clean up after the build process.