Bug#749685: morse-simulator: FTBFS on Kfreebsd - Blocking python3.4 as default python3

[Scott Kitterman]

Source: morse-simulator
Version: 1.2-2
Severity: serious
Justification: fails to build from source (but built successfully in the past)

FTBFS on both Kfreebsd i386 and amd64.  The end of the build log looks like:

reading sources... [ 12%] media
reading sources... [ 12%] morse
reading sources... [ 13%] multinode
reading sources... [ 13%] pymorse
[error] install python-concurrent.futures
make[3]: *** [CMakeFiles/doc] Error 1
CMakeFiles/doc.dir/build.make:52: recipe for target 'CMakeFiles/doc' failed
make[3]: Leaving directory '/«PKGBUILDDIR»/obj-i486-kfreebsd-gnu'
CMakeFiles/Makefile2:967: recipe for target 'CMakeFiles/doc.dir/all' failed
make[2]: *** [CMakeFiles/doc.dir/all] Error 2
make[2]: Leaving directory '/«PKGBUILDDIR»/obj-i486-kfreebsd-gnu'
make[1]: *** [all] Error 2
Makefile:126: recipe for target 'all' failed
make[1]: Leaving directory '/«PKGBUILDDIR»/obj-i486-kfreebsd-gnu'
dh_auto_build: make -j1 returned exit code 2
make: *** [build-arch] Error 2
debian/rules:8: recipe for target 'build-arch' failed
dpkg-buildpackage: error: debian/rules build-arch gave error exit status 2

While this is not new (it's three months old), it's now blocking getting
packages rebuilt for python3.4 as default python3 (See #746709).