SPEC file for CentOS 6 and latest Tidy from http://www.html-tidy.org as replacement for http://vault.centos.org/6.7/os/Source/SPackages/tidy-0.99.0-19.20070615.1.el6.src.rpm .
Does not touch libtidy 0.99.0.
Use like this:
rpmdev-setuptree
cd ~/rpmbuild
wget --output-document SPECS/tidy.spec https://raw.githubusercontent.com/kordewiner/centos6-tidy/master/tidy.spec
spectool --get-files --sourcedir SPECS/tidy.spec
rpmbuild -ba SPECS/tidy.spec