kbuild: document environment variables
Add kbuild.txt to Documentation/kbuild
More stuff can be added later - at least we have
som of the varous environment variables documented now.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/Documentation/kbuild/00-INDEX b/Documentation/kbuild/00-INDEX
index 54a118a..e8d2b6d 100644
--- a/Documentation/kbuild/00-INDEX
+++ b/Documentation/kbuild/00-INDEX
@@ -1,10 +1,12 @@
00-INDEX
- - this file: info on the kernel build process
+ - this file: info on the kernel build process
+kbuild.txt
+ - developer information on kbuild
+kconfig.txt
+ - usage help for make *config
kconfig-language.txt
- specification of Config Language, the language in Kconfig files
makefiles.txt
- developer information for linux kernel makefiles
-kconfig.txt
- - usage help for make *config
modules.txt
- how to build modules and to install them