Changes that are part of v4.0.7 modified the "Param" field in TIFFFaxTabEnt was changed from uint32 to uint16. This change causes HylaFAX to be unable to transmit Faxes. Reversing this change fixes the problem & restores functionality to Hylafax. For more information please, see http://bugzilla.maptools.org/show_bug.cgi?id=2636 I've verified that this bug persists in tiff-4.0.7_1 version of the port. Thank you for your help.
Maintainer may need to backport the fix until the next release (4.0.8?): https://github.com/vadz/libtiff/commit/7757b91a7163
A commit references this bug: Author: antoine Date: Mon May 22 18:53:05 UTC 2017 New revision: 441487 URL: https://svnweb.freebsd.org/changeset/ports/441487 Log: Update to 4.0.8 PR: 219458, 216259 Submitted by: Vidar Karlsen MFH: 2017Q2 Changes: head/graphics/tiff/Makefile head/graphics/tiff/distinfo head/graphics/tiff/files/patch-Makefile.in head/graphics/tiff/pkg-plist
A commit references this bug: Author: antoine Date: Mon May 22 19:06:43 UTC 2017 New revision: 441488 URL: https://svnweb.freebsd.org/changeset/ports/441488 Log: MFH: r441487 Update to 4.0.8 PR: 219458, 216259 Submitted by: Vidar Karlsen Changes: _U branches/2017Q2/ branches/2017Q2/graphics/tiff/Makefile branches/2017Q2/graphics/tiff/distinfo branches/2017Q2/graphics/tiff/files/patch-Makefile.in branches/2017Q2/graphics/tiff/pkg-plist