[gtk] (8 commits) Non-fast-forward update to branch wip/otte/macos-werror

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/macos-werror' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  428d3cc... gtk-launch: Fix unused variable warning on macOS
  d1c7b08... gtk-launch: Remove compile-time warning
  d6c3a2d... glcontext: Avoid gcc warning on non-egl build
  2d41d12... build: Turn off tautological-constant-out-of-range-compare 
  798589e... CI: turn on -Werror for MacOS build

Commits added to the branch:

  730aec0... reftests: Remove GTK3 setting
  4c2f111... ci: Disable -Werror on more subprojects
  6fb32ae... testsuite: set GDK_DEBUG=default-settings unconditionally
  8863852... gtk-launch: Fix unused variable warning on macOS
  e927f12... gtk-launch: Remove compile-time warning
  1612f94... glcontext: Avoid gcc warning on non-egl build
  f6e0600... build: Turn off tautological-constant-out-of-range-compare 
  3c4ca29... CI: turn on -Werror for MacOS build