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-rw-r--r--metapost/context/base/mpiv/mp-xbox.mpiv5
1 files changed, 5 insertions, 0 deletions
diff --git a/metapost/context/base/mpiv/mp-xbox.mpiv b/metapost/context/base/mpiv/mp-xbox.mpiv
index 4b4c4c3cd..be5630a5e 100644
--- a/metapost/context/base/mpiv/mp-xbox.mpiv
+++ b/metapost/context/base/mpiv/mp-xbox.mpiv
@@ -284,6 +284,11 @@ def boxes_init_all =
def boxes_clear_all = enddef;
enddef ;
+def boxjoin(text t) =
+ def boxes_prevbox = _ enddef;
+ def boxes_dojoin(suffix a,b) = t enddef;
+enddef;
+
extra_beginfig := extra_beginfig & "boxes_init_all;";
extra_endfig := "boxes_clear_all;" & extra_endfig;