Hello, I know this isn't the right forum for questions like the following. Can someone refer me to the right forum?

I'm attempting to install labltk on a MacOS Sierra system on which I've installed tcl-tk using homebrew. Homebrew installs tcl-tk in

/usr/local/opt/

but it doesn't symlink it in /usr/local/. I'm having trouble convincing the Makefile for labltk to find the .h files in

/usr/local/opt/tcl-tk/include/

It doesn't seem to use CPPFLAGS. Any hints on either or both 1. where to ask this and 2. how to install labltk would be greatly appreciated.

Bob Muller