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-rw-r--r--src/graph/view2D/main2d.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/graph/view2D/main2d.c b/src/graph/view2D/main2d.c
index 5df59398..5642c7ae 100644
--- a/src/graph/view2D/main2d.c
+++ b/src/graph/view2D/main2d.c
@@ -51,6 +51,8 @@
#include "XSpadFill.h"
#include "cfuns.h"
+using namespace OpenAxiom;
+
/**********************/
/** global variables **/