Refactored version of GLU tesselator Formula was removed
Last version was
libtess2 requires the following formula to be installed:
premake 4.4-beta5 Write once, build anywhere Lua-based build system

Recent formula history

ilovezfs libtess2: delete (#13813)
Dominyk Tiller libtess2 1.0.1
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Roy Shilkrot libtess2 1.0

Formula code at GitHub