Fixes: #48950
Kconfig requires quoted strings in its configuration files, like this:
> CONFIG_A_STRING="foo bar"
But CMake requires expects that strings are without additional qoutes,
and therefore qoutes are stripped when loading Kconfig config filers
into CMake.
This is particular important when the string in Kconfig is a path to a
file. In this case, not stripping the quotes leads to an error as the
file cannot be found.
When users pass a string to Kconfig through CMake, they are expected to
pass it so that qoutes are correct seen from Kconfig, that is:
> cmake -DCONFIG_A_STRING=\"foo bar\"
In CMake, those qoutes are written as-is to Kconfig extra config file,
and then removed in the CMake cache.
After Kconfig processing, the Kconfig settings are read back to CMake
but without quotes. Settings that was passed through the CMake cache,
for example using `-D` are written back to the cache, but this time
without the qoutes. This results in Kconfig errors on sub-sequent CMake
runs.
Instead of writing the Kconfig value setting back to the CMake cache,
introduce an internal shadow symbol in the cache prefixed with `CLI_`.
This allows the CMake cache to keep the value correctly formatted for
Kconfig extra config creation, while at the same time keep existing
behavior for CONFIG_ symbols read from Kconfig.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
4cb2ef83bf