Prefer the lighter-weight mcel implementation to the heavier-weight
mbuiter that GNU tar does not need.
* bootstrap.conf (avoided_gnulib_modules): Avoid mbuiter, mbuiterf.
* gnulib.modules: Add mcel-prefer.
source_base=gnu
gnulib_name=libgnu
-# We don't need these modules, even though gnulib-tool mistakenly
-# includes them because of gettext dependencies.
+# We don't need these modules, even though gnulib-tool ordinarily
+# includes them because of dependencies on the modules 'exclude’ and 'regex'.
avoided_gnulib_modules='
--avoid=lock
+ --avoid=mbuiter
+ --avoid=mbuiterf
'
linkat
localcharset
manywarnings
+mcel-prefer
mkdirat
mkdtemp
mkfifoat