[glib] (5 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:

  1f99218... meson: Define G_OS_LINUX when host system is Linux
  b097557... glib/gio: Use G_OS_LINUX in public APIs
  88be6a9... glib: Add G_OS_OPENBSD and G_OS_FREEBSD
  cbb549b... glib: Add generic G_OS_BSD definition on such platforms

Commits added to the branch:

  c3aa3e5... glib/tests/macros: Use #error to provide a clearer error on
  354d29c... meson: Define G_OS_LINUX when host system is Linux
  aaa7632... glib/gio: Use G_OS_LINUX in public APIs
  62b5c72... glib: Add G_OS_OPENBSD and G_OS_FREEBSD
  3e2dda5... glib: Add generic G_OS_BSD definition on such platforms