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diff --git a/lib/art/art_svp.h b/lib/art/art_svp.h
new file mode 100644
index 0000000..4f88e8b
--- /dev/null
+++ b/lib/art/art_svp.h
@@ -0,0 +1,68 @@
+/* Libart_LGPL - library of basic graphic primitives
+ * Copyright (C) 1998 Raph Levien
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __ART_SVP_H__
+#define __ART_SVP_H__
+
+/* Basic data structures and constructors for sorted vector paths */
+
+#ifdef LIBART_COMPILATION
+#include "art_rect.h"
+#include "art_point.h"
+#else
+#include "art_rect.h"
+#include "art_point.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+typedef struct _ArtSVP ArtSVP;
+typedef struct _ArtSVPSeg ArtSVPSeg;
+
+struct _ArtSVPSeg {
+  int n_points;
+  int dir; /* == 0 for "up", 1 for "down" */
+  ArtDRect bbox;
+  ArtPoint *points;
+};
+
+struct _ArtSVP {
+  int n_segs;
+  ArtSVPSeg segs[1];
+};
+
+int
+art_svp_add_segment (ArtSVP **p_vp, int *pn_segs_max,
+		     int **pn_points_max,
+		     int n_points, int dir, ArtPoint *points,
+		     ArtDRect *bbox);
+
+void
+art_svp_free (ArtSVP *svp);
+
+int
+art_svp_seg_compare (const void *s1, const void *s2);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __ART_SVP_H__ */