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-rw-r--r--tools/buildman/README3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/buildman/README b/tools/buildman/README
index fbc8449f7b..8ba19ec103 100644
--- a/tools/buildman/README
+++ b/tools/buildman/README
@@ -445,6 +445,9 @@ If many boards have the same error, then -e will display the error only
once. This makes the output as concise as possible. To see which boards have
each error, use -l.
+Buildman tries to distinguish warnings from errors, and shows warning lines
+separately with a 'w' prefix.
+
The full build output in this case is available in:
../lcd9b/12_of_18_gd92aff7_lcd--Add-support-for/lubbock/