Notes on building Tcl/Tk for TeX Live 2020 The 2020 edition contains a standard basic Tcl/Tk installation. However, I was unable this time to create a single-file Tcl/Tk runtime, as for the 2019 TeX Live edition. The Tcl/Tk 8.6.10 sources were downloaded via http://www.tcl.tk/software/tcltk/download.html Tcl/Tk was cross-compiled under Ubuntu Linux 18.04 as follows. For first Tcl, then Tk do: - Unpack the source, and run in the win subdirectory: ./configure --host=i686-w64-mingw32 --enable-embedded-manifest \ --prefix= - For Tk, patch the file tk8.6.10/win/win/wish.exe.manifest for better HiPDI support by adding a dpiAwareness element; the asmv3:windowsSettings element in this file becomes: true PerMonitorV2 Presumably I could instead have patched wish.exe.manifest.in _before_ running configure. - run 'make' and 'make install' make make install Portability of the result should be no problem. I removed sqlite3_analyzer from /bin and placed the resulting lib- and bin subdirectories under /tlpkg/tltcl. Siep Kroonenberg March 2020