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-rw-r--r--src/mtx_qhull/vectors.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/mtx_qhull/vectors.h b/src/mtx_qhull/vectors.h
index 201205a..fadb370 100644
--- a/src/mtx_qhull/vectors.h
+++ b/src/mtx_qhull/vectors.h
@@ -1,3 +1,9 @@
+#ifndef QHULL_VECTORS_H
+#define QHULL_VECTORS_H
+
+#include <sys/types.h>
+#include "list.h"
+
typedef struct vec_ {
float c[3];
} vector_t;
@@ -38,3 +44,5 @@ plane_t planeFromListedPoints(points_t points, list_t list);
void printPlane(plane_t p);
void printVector(vector_t v);
+
+#endif /* QHULL_VECTORS_H */