#
# * per-source-file dependencies instead of one .depend file?
# * eliminate undefined variables, and use --warn-undefined-variables?
-# * perhaps we should make all the output dirs in the .depend rule, to
-# avoid all these mkdirhier calls?
# * put outputs from different ways in different subdirs of distdir/build,
# then we don't have to use -osuf/-hisuf. We would have to install
# them in different places too, so we'd need ghc-pkg support for packages