mxcl/homebrew — pull request #19124 by niceview (2013-04-11 08:55:08+00:00)
Title: ruby: simple configure options with "--with-tcltk"

"--disable-tcltk-framework" is invalid if "--with-out-ext=tk" is used.

There is no tcl ext in ruby source/ext directory. So "--with-out-ext=tcl" is not necessary.

With "--with-out-ext=tk" is good enough to disable tcl/tk library.