[glib/glib-2-68: 5/5] Merge branch 'vs2012-2-68' into 'glib-2-68'

[Philip Withnall <pwithnall src gnome org>]

commit 3da1f2595f0141bc5b0e2e5d82ef78a7ce105e55
Merge: d51c3b01f 8da16a4f8
Author: Philip Withnall <philip tecnocode co uk>
Date:   Wed Mar 31 15:52:23 2021 +0000

    Merge branch 'vs2012-2-68' into 'glib-2-68'
    
    Few fixes and notes for building on Visual Studio 2012 and earlier
    
    See merge request GNOME/glib!2022

 README.win32.md             | 72 ++++++++++++++++++++++++++++++++++++++++++---
 gio/gsocket.c               |  8 +++--
 glib/tests/option-context.c | 18 ++++++++++++
 3 files changed, 92 insertions(+), 6 deletions(-)
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