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-rw-r--r--src/engine/SCons/Tool/m4.xml10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/engine/SCons/Tool/m4.xml b/src/engine/SCons/Tool/m4.xml
index 0ee421e5..63d16bee 100644
--- a/src/engine/SCons/Tool/m4.xml
+++ b/src/engine/SCons/Tool/m4.xml
@@ -6,8 +6,16 @@ See its __doc__ string for a discussion of the format.
-->
<tool name="m4">
<summary>
-XXX
+Sets construction variables for the &m4; macro processor.
</summary>
+<sets>
+M4
+M4FLAGS
+M4COM
+</sets>
+<uses>
+M4COMSTR
+</uses>
</tool>
<builder name="M4">