Commit:     2a113281f5cd2febbab21a93c8943f8d3eece4d3
Parent:     0f855aa64b3f63d35a891510cf7db932a435c116
Author:     Sam Ravnborg <[EMAIL PROTECTED]>
AuthorDate: Sat Nov 10 20:40:05 2007 +0100
Committer:  Sam Ravnborg <[EMAIL PROTECTED]>
CommitDate: Mon Nov 12 21:02:20 2007 +0100

    kconfig: use $K64BIT to set 64BIT with all*config targets
    The variable K64BIT can now be used to select the
    value of CONFIG_64BIT.
    This is for example useful for powerpc to generate
    allmodconfig for both bit sizes - like this:
    make ARCH=powerpc K64BIT=y
    make ARCH=powerpc K64BIT=n
    To use this the Kconfig file must use "64BIT" as the
    config value to select between 32 and 64 bit.
    Signed-off-by: Sam Ravnborg <[EMAIL PROTECTED]>
    Cc: Roman Zippel <[EMAIL PROTECTED]>
 README                 |    2 ++
 scripts/kconfig/conf.c |    1 +
 2 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/README b/README
index 159912c..592f8a2 100644
--- a/README
+++ b/README
@@ -194,6 +194,8 @@ CONFIGURING the kernel:
    "make *config" checks for a file named "all{yes/mod/no/random}.config"
    for symbol values that are to be forced.  If this file is not found,
    it checks for a file named "all.config" to contain forced values.
+   Finally it checks the environment variable K64BIT and if found, sets
+   the config symbol "64BIT" to the value of the K64BIT variable.
        NOTES on "make config":
        - having unnecessary drivers will make the kernel bigger, and can
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index a38787a..c6bee85 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -591,6 +591,7 @@ int main(int ac, char **av)
                        conf_read_simple(name, S_DEF_USER);
                else if (!stat("all.config", &tmpstat))
                        conf_read_simple("all.config", S_DEF_USER);
+               conf_set_env_sym("K64BIT", "64BIT", S_DEF_USER);
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