[glib] Expand g_type_init release notes

[Matthias Clasen <matthiasc src gnome org>]

commit be04560f96b533a1ac591f466a2ad5b428348069
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jan 12 13:02:31 2013 -0500

    Expand g_type_init release notes
    
    This is in the light of
    https://bugzilla.gnome.org/show_bug.cgi?id=691077

 README.in |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/README.in b/README.in
index 1122c16..10ae606 100644
--- a/README.in
+++ b/README.in
@@ -74,6 +74,11 @@ Notes about GLib 2.36
   loading GLib as a dynamic module, you should be careful to avoid
   unloading it, then subsequently loading it again.  This never
   really worked before, but it is now explicitly undefined behavior.
+  Note that if g_type_init() was the only explicit use of a GObject
+  API and you are using linker flags such as --no-add-needed, then
+  you may have to artificially use some GObject call to keep the
+  linker from optimizing away -lgobject. We recommend to use
+  g_type_ensure (G_TYPE_OBJECT) for this purpose.
 
 * This release contains an incompatible change to the g_get_home_dir()
   function.  Previously, this function would effectively ignore the HOME