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docs/manual: document the new kconfig-package variable

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The previous patch introduced the new FOO_KCONFIG_DEFCONFIG variable
to specify a defconfig rule rather than a (def)config file.

Add this to the manual.

Also document the pre-existing FOO_KCONFIG_FILE for which the
explanations were missing altogether.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Yann E. MORIN 2015-12-22 22:22:01 +01:00 committed by Thomas Petazzoni
parent 8ef62b996b
commit 217493eef8
1 changed files with 10 additions and 0 deletions
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docs/manual/adding-packages-kconfig.txt
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@ -46,6 +46,16 @@ This snippet creates the following make targets:
and ensures that the source configuration file is copied to the build
directory at the right moment.
There are two options to specify a configuration file to use, either
+FOO_KCONFIG_FILE+ (as in the example, above) or +FOO_KCONFIG_DEFCONFIG+.
It is mandatory to provide either, but not both:
* +FOO_KCONFIG_FILE+ specifies the path to a defconfig or full-config file
to be used to configure the package.
* +FOO_KCONFIG_DEFCONFIG+ specifies the defconfig 'make' rule to call to
configure the package.
In addition to these minimally required lines, several optional variables can
be set to suit the needs of the package under consideration: