1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/tree.h b/gcc/tree.h
index 8634acb..8f29728 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -1347,7 +1347,10 @@ struct tree_type
 /* For a FIELD_DECL in a QUAL_UNION_TYPE, records the expression, which
    if nonzero, indicates that the field occupies the type.  */
 #define DECL_QUALIFIER(NODE) (FIELD_DECL_CHECK (NODE)->decl.initial)
-/* These two fields describe where in the source code the declaration was.  */
+/* These two fields describe where in the source code the declaration
+   was.  If the declaration appears in several places (as for a C
+   function that is declared first and then defined later), this
+   information should refer to the definition.  */
 #define DECL_SOURCE_FILE(NODE) (DECL_CHECK (NODE)->decl.filename)
 #define DECL_SOURCE_LINE(NODE) (DECL_CHECK (NODE)->decl.linenum)
 /* Holds the size of the datum, in bits, as a tree expression.