Config.in (2.4) vs. Kconfig (2.6)

[Lukas Ruf <ruf@xxxxxxxxx>]

Dear all,

after reading 'Documentation/kbuild/kconfig-language.txt' several
times, I dare ask in this mailing list for help:

In 2.4's Config.in, there was the possibility to 'define_tristate' a
configuration setting depending on another one.

I assume this feature must be available in 2.6's Kconfig too.
However, I cannot find any information that helps me in this regard.

In concrete:
in 2.4 I have had:

  if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
    dep_tristate   '  PromethOS ANN (ipv4) (EXPERIMENTAL)' \
          CONFIG_IP_NF_PROMETHOS $CONFIG_IP_NF_IPTABLES
    if [ "$CONFIG_IP_NF_PROMETHOS" != "n" ]; then
      define_tristate CONFIG_IP_NF_PROMETHOS_TARGET  \
          $CONFIG_IP_NF_PROMETHOS

In 2.6, so far I have:

  config IP_NF_PROMETHOS
    tristate 'PromethOS ANN (ipv4)'
    depends on EXPERIMENTAL && IP_NF_IPTABLES
    help
      This options makes Linux a high-performance active network node.


I have not understood so far, how I can set
- boolean values
- define_tristate
in 2.6's Kconfig.

For any brief help, I would be very thankful!

wbr,
Lukas
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