With the new Kconfig preprocessor (described in
https://github.com/torvalds/linux/blob/master/Documentation/kbuild/
kconfig-macro-language.txt), the syntax for expanding environment
variables is $(FOO) rather than $FOO.
$(FOO) is a general preprocessor variable expansion, which falls back to
environment variables if the variable isn't set (like in Make). It can
also be used in prompts, 'comment's, etc.
The old syntax will probably be supported forever in Kconfiglib for
backwards compatibility, but might as well make it consistent now that
people might start using the preprocessor more.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
This will make adding properties to symbols in the base Zephyr Kconfig
files work the same as before.
I didn't actually spot any such cases, so this is just to play it safe.
It also makes the sample Kconfig symbols appear at the top in the
menuconfig interface, which might be nice.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
These are no longer required. Kconfiglib expands references to
environment variables directly.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
The application does not do much, it just registers to a callback
in order to get information about gPTP.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Ulf Magnusson