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-rw-r--r--tools/buildman/README12
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/buildman/README b/tools/buildman/README
index 89df94d..62ab7b7 100644
--- a/tools/buildman/README
+++ b/tools/buildman/README
@@ -1004,6 +1004,18 @@ configuration you can in fact avoid doing a full build, using -D. This tells
buildman to configuration U-Boot and create the .cfg files, but not actually
build the source. This is 5-10 times faster than doing a full build.
+By default buildman considers the follow two configuration methods
+equivalent:
+
+ #define CONFIG_SOME_OPTION
+
+ CONFIG_SOME_OPTION=y
+
+The former would appear in a header filer and the latter in a defconfig
+file. The achieve this, buildman considers 'y' to be '1' in configuration
+variables. This avoids lots of useless output when converting a CONFIG
+option to Kconfig. To disable this behaviour, use --squash-config-y.
+
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