## we need to nuke the parser files, because if there is a mismatch
## between upstreams bison and our bison, the build will fail epically
override_dh_auto_clean:
- rm -rf no-trespassing
- -$(MAKE) -C guile18 maintainer-clean
+ [ ! -f guile18/Makefile ] || $(MAKE) -C guile18 maintainer-clean
rm -f lily/out/parser.*
dh_auto_clean --no-parallel