manuals: improve documentation for TEMPLATECONF

Add it to the variable index
Misc improvements to the documentation for this variable

(From yocto-docs rev: fb460a7c7aba1ad5754806f9cfad9ef591420317)

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

2 files changed, 19 insertions, 4 deletions

diff --git a/documentation/ref-manual/structure.rst b/documentation/ref-manual/structure.rst
index 262b041ea6..12a085552f 100644
--- a/documentation/ref-manual/structure.rst
+++ b/documentation/ref-manual/structure.rst
@@ -261,7 +261,7 @@ OpenEmbedded build system creates it from ``local.conf.sample`` when you
 :ref:`structure-core-script`.
 
 The source ``local.conf.sample`` file used depends on the
-``$TEMPLATECONF`` script variable, which defaults to ``meta-poky/conf/``
+:term:`TEMPLATECONF` script variable, which defaults to ``meta-poky/conf/``
 when you are building from the Yocto Project development environment,
 and to ``meta/conf/`` when you are building from the OpenEmbedded-Core
 environment. Because the script variable points to the source of the
@@ -278,7 +278,7 @@ file, it uses ``sed`` to substitute final
 
 .. note::
 
-   You can see how the ``TEMPLATECONF`` variable is used by looking at the
+   You can see how the :term:`TEMPLATECONF` variable is used by looking at the
    ``scripts/oe-setup-builddir`` script in the :term:`Source Directory`.
    You can find the Yocto Project version of the ``local.conf.sample`` file in
    the ``meta-poky/conf`` directory.
@@ -300,7 +300,7 @@ you ``source`` the top-level build environment setup script (i.e.
 :ref:`structure-core-script`).
 
 As with the ``local.conf`` file, the source ``bblayers.conf.sample``
-file used depends on the ``$TEMPLATECONF`` script variable, which
+file used depends on the :term:`TEMPLATECONF` script variable, which
 defaults to ``meta-poky/conf/`` when you are building from the Yocto
 Project development environment, and to ``meta/conf/`` when you are
 building from the OpenEmbedded-Core environment. Because the script
@@ -315,7 +315,7 @@ Once the build process gets the sample file, it uses ``sed`` to substitute final
 
 .. note::
 
-   You can see how the ``TEMPLATECONF`` variable ``scripts/oe-setup-builddir``
+   You can see how the :term:`TEMPLATECONF` variable is defined by the ``scripts/oe-setup-builddir``
    script in the :term:`Source Directory`. You can find the Yocto Project
    version of the ``bblayers.conf.sample`` file in the ``meta-poky/conf/``
    directory.
diff --git a/documentation/ref-manual/variables.rst b/documentation/ref-manual/variables.rst
index f164b7317a..a947caddf6 100644
--- a/documentation/ref-manual/variables.rst
+++ b/documentation/ref-manual/variables.rst
@@ -7899,6 +7899,21 @@ system and gives an overview of their function and contents.
       toolchain. You can use ``meta-sourcery`` as a template for adding
       support for other external toolchains.
 
+   :term:`TEMPLATECONF`
+      Specifies the directory used by the build system to find templates
+      from which to build the ``bblayers.conf`` and ``local.conf`` files.
+      Use this variable if you wish to customize such files, and the default
+      BitBake targets shown when sourcing the ``oe-init-build-env`` script.
+
+      For details, see the
+      :ref:`dev-manual/common-tasks:creating a custom template configuration directory`
+      section in the Yocto Project Development Tasks manual.
+
+      .. note::
+
+         You must set this variable in the external environment in order
+         for it to work.
+
    :term:`TEST_EXPORT_DIR`
       The location the OpenEmbedded build system uses to export tests when
       the :term:`TEST_EXPORT_ONLY` variable is set