A bump of the ebuild works fine. Reproducible: Always Steps to Reproduce: 1. 2. 3.
Created attachment 56047 [details, diff] Patch for freetds version 0.63 Although renaming the original ebuild worked, I think this patch will simplify and improve the ebuild slightly. I added the odbc to DEPEND, use -odbc and -mssql now explicitly disable those options, and the Makefile for freetds now appears to use DESTDIR, so there's no need for the mv and sed lines in src_install.
FreeTDS was revbumped to 0.63 in the overlay (http://svn.gnqs.org/projects/gentoo-php-overlay/). Closing.