[CentOS] libtiff 3.6.1 and Asterisk spandsp

Per:  http://soft-switch.org/spandsp_faq/ar01s07.html

FAXing with spandsp keeps giving me core dumps. Its crap, isn't it?

Actually the crap in this case is probably libtiff. Versions 3.5.7 
and 3.6.0 seem reliable. The FAX image handling in version 3.6.1 is 
broken. All the core dump problems I have investigated turned out to 
be due to a very old version of libtiff, or version 3.6.1.

I am getting crashes of Asterisk on transmitting faxes (not 
receiving), and have libtiff-3.6.1-10 installed.

Does anyone here have experience with spandsp's txFax?
is libtiff 3.6.0 available somewhere somehow to try it out?