listPackageSourcesMaybeExecutable :: PackageDescription -> IO [FilePath]
listPackageSourcesMaybeExecutable pkg_descr =
  -- Extra source files.
  fmap concat . forM (extraSrcFiles pkg_descr) $ \fpath -> matchFileGlob fpath
listPackageSourcesMaybeExecutable :: PackageDescription -> IO [FilePath]
listPackageSourcesMaybeExecutable pkg_descr =
  -- Extra source files.
  fmap concat . forM (extraSrcFiles pkg_descr) $ \fpath -> matchFileGlob fpath
listPackageSourcesMaybeExecutable pkg_descr =
  -- Extra source files.
  fmap concat . forM (extraSrcFiles pkg_descr) $ \fpath -> matchFileGlob fpath