diff options
Diffstat (limited to 'poky/documentation/ref-manual/variables.rst')
| -rw-r--r-- | poky/documentation/ref-manual/variables.rst | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/poky/documentation/ref-manual/variables.rst b/poky/documentation/ref-manual/variables.rst index 4ce264813..2cb37b6a2 100644 --- a/poky/documentation/ref-manual/variables.rst +++ b/poky/documentation/ref-manual/variables.rst @@ -4202,11 +4202,11 @@ system and gives an overview of their function and contents. this variable in your layer's ``conf/layer.conf`` configuration file. For the list, use the Yocto Project :yocto_wiki:`Release Name </Releases>` (e.g. - DISTRO_NAME_NO_CAP). To specify multiple OE-Core versions for the + &DISTRO_NAME_NO_CAP;). To specify multiple OE-Core versions for the layer, use a space-separated list: :: - LAYERSERIES_COMPAT_layer_root_name = "DISTRO_NAME_NO_CAP DISTRO_NAME_NO_CAP_MINUS_ONE" + LAYERSERIES_COMPAT_layer_root_name = "&DISTRO_NAME_NO_CAP; &DISTRO_NAME_NO_CAP_MINUS_ONE;" .. note:: @@ -5915,23 +5915,16 @@ system and gives an overview of their function and contents. file ``eudev_3.2.9.bb``: :: - PROVIDES = "udev" + PROVIDES += "udev" The ``PROVIDES`` statement results in the "eudev" recipe also being available as simply "udev". .. note:: - Given that a recipe's own recipe name is already implicitly in its - own PROVIDES list, it is unnecessary to add aliases with the "+=" operator; - using a simple assignment will be sufficient. In other words, - while you could write: - :: - - PROVIDES += "udev" - - - in the above, the "+=" is overkill and unnecessary. + A recipe's own recipe name (:term:`PN`) is always implicitly prepended + to `PROVIDES`, so while using "+=" in the above example may not be + strictly necessary it is recommended to avoid confusion. In addition to providing recipes under alternate names, the ``PROVIDES`` mechanism is also used to implement virtual targets. A |