[glib] (4 commits) Non-fast-forward update to branch wip/3v1n0/more-unix-oses

[Marco Trevisan <marcotrevi src gnome org>]

The branch 'wip/3v1n0/more-unix-oses' 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:

  21da881... meson: Define G_OS_LINUX when host system is Linux
  e64f840... glib/gio: Use G_OS_LINUX in public APIs
  adfe818... glib: Add G_OS_OPENBSD and G_OS_FREEBSD
  aae0e45... glib: Add generic G_OS_BSD definition on such platforms

Commits added to the branch:

  2020125... meson: Define G_OS_LINUX when host system is Linux
  10d2331... glib/gio: Use G_OS_LINUX in public APIs
  44db49d... glib: Add G_OS_OPENBSD and G_OS_FREEBSD
  8bff77a... glib: Add generic G_OS_BSD definition on such platforms