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-rw-r--r--docs/manual/common-usage.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/docs/manual/common-usage.txt b/docs/manual/common-usage.txt
index d9de5989a9..c9d5eb967b 100644
--- a/docs/manual/common-usage.txt
+++ b/docs/manual/common-usage.txt
@@ -96,6 +96,8 @@ to +make+ or set in the environment:
build-time graphs
* +BR2_GRAPH_OUT+ to set the filetype of generated graphs, either +pdf+ (the
default), or +png+.
+* +BR2_GRAPH_DEPTH+ (an integer) to limit the depth of the dependency graph.
+ The default, +0+, is to not limit the depth.
An example that uses config files located in the toplevel directory and
in your $HOME:
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