Prevent to redefinition in case of multiple include

marekzehra · marekzehra · commit 54cd288e4a60 · 2014-03-28T18:39:22.000+01:00
diff --git a/src/stl.h b/src/stl.h
@@ -20,6 +20,9 @@
  *           https://github.com/admesh/admesh/issues
  */
 
+#ifndef __admesh_stl__
+#define __admesh_stl__
+
 #include <stdio.h>
 
 #ifdef __cplusplus
@@ -192,3 +195,5 @@ extern void stl_get_size(stl_file *stl);
 #ifdef __cplusplus
 }
 #endif
+
+#endif
