For definitions from configure

Common/Defs.h.in

+// Gmsh - Copyright (C) 1997-2008 C. Geuzaine, J.-F. Remacle
+//
+// See the LICENSE.txt file for license information. Please report all
+// bugs and problems to <gmsh@geuz.org>.
+#ifndef _DEFS_H_
+#define _DEFS_H_
+
+// Partitioning (0x01 = Chaco, 0x10 = Metis)
+#define @USE_PARTITION@ @USE_PARTITION_PROG@
+
+#endif