need to probe around inside the modem.

than 2.64 (which is currently a lot less common). This change seems to have
no negative effect, but allows builds to succeed on things like Centos.

AC_PROG_LIBTOOL
m4_include(m4/acinclude.m4)
Adding these and taking out all the Makefile.in files from the tiff-4.0.2
directory seems to sort out the build issues.

me. That's not happening for everyone, so let's add them all, just like the
tiff-4.0.2 distribution package.

compression and colour profile codes that go with them.

Hopefully made the last of the tiff-3.8.2 -> tiff-4.0.2 changes in the build files

will need rechecking.

another efficiency pass on sofia and refactoring of 3c685bff to be more efficient