This is an error in the Kconfig files. This one is complex because a
lot of settings are involved. This kind of error occurs because you
are auto-selecting a setting that has dependencies that are not
selected. A simple example would be like
config FOO
bool "Foo"
depends on BAR
config BAZ
bool "Baz"
select FOO
That causes the error if BAZ is not selected. Fixes:
* Temporary workaround: Select BAR in the configuration
* Select BAR before FOO when BAZ is selected
* May BAZ depend on BAR too
* Select FOO conditional 'select FOO if BAR'
There is one more option (at least). You can use 'imply FOO' instead of
'select FOO'. Per the Kconfig-frontends documentation:
- weak reverse dependencies: "imply" <symbol> ["if" <expr>]
This is similar to "select" as it enforces a lower limit on another
symbol except that the "implied" symbol's value may still be set to n
from a direct dependency or with a visible prompt.
Given the following example:
config FOO
tristate
imply BAZ
config BAZ
tristate
depends on BAR
The following values are possible:
FOO BAR BAZ's default choice for BAZ
--- --- ------------- --------------
n y n N/m/y
m y m M/y/n
y y y Y/n
y n * N
This is useful e.g. with multiple drivers that want to indicate their
ability to hook into a secondary subsystem while allowing the user to
configure that subsystem out without also having to unset these
drivers.
Greg
