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-rw-r--r--luatexbase-attr.dtx2
1 files changed, 2 insertions, 0 deletions
diff --git a/luatexbase-attr.dtx b/luatexbase-attr.dtx
index f1a0f7a..5a4960c 100644
--- a/luatexbase-attr.dtx
+++ b/luatexbase-attr.dtx
@@ -492,6 +492,8 @@ local new_user_whatsit_id = function (name, package)
end
else -- anonymous
anonymous_whatsits = anonymous_whatsits + 1
+ warning("defining anonymous user whatsit no. %d", anonymous_whatsits)
+ warning("dear package authors, please name your whatsits!")
package = unassociated
name = anonymous_prefix .. tostring(anonymous_whatsits)
end