[PATCH 0/5] git-gui: workaround deprecation of Tcl/TK 8.5 in macOS

This series, add improvements to allow running `git-gui` in macOS, which is stuck in an ancient version of Tcl/TK that is no longer supported by git.

Patches 1 and 2 are minor fixes that could also apply to maint, but the main change is in Patch 3, which removes the long obsoleted "Git Gui" app that was tied to the system provided Tcl/TK framework and that has been broken for a while.

Patches 4 and 5 are needed to avoid the system framework and facilitate using a third party provided package of Tcl/TK 8.6 instead, but the last patch also protects against a conflict with the Xcode provided git that for some reason includes a copy pf `git-gui--askpass` even if `git-gui` is missing.

Carlo Marcelo Arenas Belón (5):
  git-gui: remove uname_O in Makefile
  git-gui: fix dependency of GITGUI_MAIN on generator
  git-gui: retire Git Gui.app
  git-gui: honor TCLTK_PATH in git-gui--askpass
  git-gui: ensure own version of git-gui--askpass is used

 .gitignore                              |   2 +-
 GIT-GUI-BUILD-OPTIONS.in                |   1 -
 Makefile                                |  63 +++----------------
 generate-git-gui.sh                     |   1 +
 generate-macos-app.sh                   |  30 ---------
 generate-macos-wrapper.sh               |  35 -----------
 generate-script.sh                      |  22 +++++++
 git-gui--askpass => git-gui--askpass.sh |   0
 git-gui.sh                              |  10 ++-
 lib/about.tcl                           |   4 +-
 macosx/AppMain.tcl                      |  29 ---------
 macosx/Info.plist                       |  30 ---------
 macosx/git-gui.icns                     | Bin 28866 -> 0 bytes
 meson.build                             |  79 +++++-------------------
 14 files changed, 56 insertions(+), 250 deletions(-)
 delete mode 100755 generate-macos-app.sh
 delete mode 100755 generate-macos-wrapper.sh
 create mode 100755 generate-script.sh
 rename git-gui--askpass => git-gui--askpass.sh (100%)
 delete mode 100644 macosx/AppMain.tcl
 delete mode 100644 macosx/Info.plist
 delete mode 100644 macosx/git-gui.icns

Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>