manuals: add reference to GIR_EXTRA_LIBS_PATH plus minor improvements

Fixes [YOCTO #14533]

(From yocto-docs rev: 84001d5d4258dad9e3663ea842ecc291d9e1a7dd)

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/documentation/ref-manual/variables.rst b/documentation/ref-manual/variables.rst
index e81a12030a..be496161bd 100644
--- a/documentation/ref-manual/variables.rst
+++ b/documentation/ref-manual/variables.rst
@@ -2667,6 +2667,13 @@ system and gives an overview of their function and contents.
    :term:`GDB`
       The minimal command and arguments to run the GNU Debugger.
 
+   :term:`GIR_EXTRA_LIBS_PATH`
+      Allows to specify an extra search path for ``.so`` files
+      in GLib related recipes using GObject introspection,
+      and which do not compile without this setting.
+      See the ":ref:`dev-manual/common-tasks:enabling gobject introspection support`"
+      section for details.
+
    :term:`GITDIR`
       The directory in which a local copy of a Git repository is stored
       when it is cloned.