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-rw-r--r--luaotfload.dtx10
1 files changed, 10 insertions, 0 deletions
diff --git a/luaotfload.dtx b/luaotfload.dtx
index 9ed00b5..25fd8f0 100644
--- a/luaotfload.dtx
+++ b/luaotfload.dtx
@@ -1496,6 +1496,16 @@ if tex.luatexversion < luatex_version then
warning("LuaTeX v%.2f is old, v%.2f is recommended.",
tex.luatexversion/100,
luatex_version /100)
+ --- we install a fallback for older versions as a safety
+ if not node.end_of_math then
+ local math_t = node.id"math"
+ local traverse_nodes = node.traverse_id
+ node.end_of_math = function (n)
+ for n in traverse_nodes(math_t, n.next) do
+ return n
+ end
+ end
+ end
end
% \end{macrocode}