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authorSam Ravnborg2007-11-10 13:40:05 -0600
committerSam Ravnborg2007-11-12 14:02:20 -0600
commit2a113281f5cd2febbab21a93c8943f8d3eece4d3 (patch)
tree12feb49c4531726c899f33a3a0dc1569ce8f217a /README
parent0f855aa64b3f63d35a891510cf7db932a435c116 (diff)
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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 <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org>
Diffstat (limited to 'README')
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1 files changed, 2 insertions, 0 deletions
diff --git a/README b/README
index 159912cf5155..592f8a238281 100644
--- a/README
+++ b/README
@@ -194,6 +194,8 @@ CONFIGURING the kernel:
194 "make *config" checks for a file named "all{yes/mod/no/random}.config" 194 "make *config" checks for a file named "all{yes/mod/no/random}.config"
195 for symbol values that are to be forced. If this file is not found, 195 for symbol values that are to be forced. If this file is not found,
196 it checks for a file named "all.config" to contain forced values. 196 it checks for a file named "all.config" to contain forced values.
197 Finally it checks the environment variable K64BIT and if found, sets
198 the config symbol "64BIT" to the value of the K64BIT variable.
197 199
198 NOTES on "make config": 200 NOTES on "make config":
199 - having unnecessary drivers will make the kernel bigger, and can 201 - having unnecessary drivers will make the kernel bigger, and can