@@ -1362,13 +1362,32 @@ system and gives an overview of their function and contents.
speed since the build system skips parsing recipes not compatible
with the current machine.
+ If one wants to have a recipe only available for some architectures
+ (here ``aarch64`` and ``mips64``), the following can be used::
+
+ COMPATIBLE_MACHINE = "^$"
+ COMPATIBLE_MACHINE:arch64 = "^(aarch64)$"
+ COMPATIBLE_MACHINE:mips64 = "^(mips64)$"
+
+ The first line means "match all machines whose :term:`MACHINEOVERRIDES`
+ contains the empty string", which will always be none.
+
+ The second is for matching all machines whose :term:`MACHINEOVERRIDES`
+ contains one override which is exactly ``aarch64``.
+
+ The third is for matching all machines whose :term:`MACHINEOVERRIDES`
+ contains one override which is exactly ``mips64``.
+
+ The same could be achieved with::
+
+ COMPATIBLE_MACHINE = "^(aarch64|mips64)$"
+
.. note::
When :term:`COMPATIBLE_MACHINE` is set in a recipe inherits from
native, the recipe is always skipped. All native recipes must be
entirely target independent and should not rely on :term:`MACHINE`.
-
:term:`COMPLEMENTARY_GLOB`
Defines wildcards to match when installing a list of complementary
packages for all the packages explicitly (or implicitly) installed in