To configure for embedded TclTk in macOS 
(see http://wiki.tcl.tk/12987 and https://wiki.tcl.tk/12945)

TCL/TK (https://www.tcl.tk/software/tcltk/download.html):

Extract tclX.X.X and tkX.X.X subdirectories under a common directory (i.e., /Users/Marcelo/TclTk).

To build, use the scripts in both tclX.X.X/macosx and tkX.X.X/macosx, in this order:

export CFLAGS="-mmacosx-version-min=10.10"

./configure --enable-threads --enable-framework # tcl
./configure --enable-threads --enable-framework --enable-aqua # tk

make deploy

make install-embedded INSTALL_ROOT=/Users/Marcelo/TclTk/

In both LMM.app/Contents and src/LSD.app/Contents, remove the Frameworks subfolder.

Copy the Frameworks subfolder from Applications/Utilities/Wish.app/Contents, into both LMM.app/Contents and src/LSD.app/Contents.

Copy to src/LSD.app/Contents/Framework the MISSING header and library items from build/tcl/Tcl.Framework and build/tk/Tk.Framework, being careful to not overwrite the existing files (Headers and PrivateHeaders folders, libtclstubX.X.a, libtkstubX.X.a, and respective link files). Copy link files ONLY after copying real files/folders.