[gtk] (6 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:

  188e5fc... ci: Disable -Werror on all subprojects
  0d4d8f6... testsuite: set GDK_DEBUG=default-settings unconditionally
  4e49558... gtk-launch: Fix unused variable warning on macOS
  7bfce7c... build: Turn off tautological-constant-out-of-range-compare 
  4607e20... CI: turn on -Werror for MacOS build

Commits added to the branch:

  f6772d4... ci: Disable -Werror on all subprojects
  8a9ea21... testsuite: set GDK_DEBUG=default-settings unconditionally
  51c96fc... gtk-launch: Fix unused variable warning on macOS
  88bd108... build: Turn off tautological-constant-out-of-range-compare 
  0c06343... CI: turn on -Werror for MacOS build
  ebcef9f... macos: Run the testsuite