I am not sure the fix is sufficient to prevent this same problem
repeating when automake updates to version 1.19 or later.
Since the issue is the missing aclocal-1.NN after automake is upgraded
from version 1.NN to 1.XX. The set of binaries only work properly when
the installed libltdl-dev and automake were built from the same sources.
In the newest control file I see:
Package: libltdl-dev
Depends: libltdl7 (= 2.5.4-7), automake (>= 1.18)
I believe that should be:
Package: libltdl-dev
Depends: libltdl7 (= 2.5.4-7), automake (= 1.18)
PS. The fix for bug #1118477 was good progress, just needs the right
equality test in output.
HTH
Amos