[ofa-general] [PATCH][TRIVIAL] opensm/include/osm_prefix_route.h: Support C++ inclusion

[Hal Rosenstock]

opensm/include/osm_prefix_route.h: Support C++ inclusion

Also, make define name consistent with file name

Signed-off-by: Hal Rosenstock <hal at xsigo.com>

diff --git a/opensm/include/opensm/osm_prefix_route.h b/opensm/include/opensm/osm_prefix_route.h
index 10b9aa4..aa3ad62 100644
--- a/opensm/include/opensm/osm_prefix_route.h
+++ b/opensm/include/opensm/osm_prefix_route.h
@@ -33,12 +33,22 @@
  *
  */
 
-#ifndef _OSM_PREFIX_ROUTES_H_
-#define _OSM_PREFIX_ROUTES_H_
+#ifndef _OSM_PREFIX_ROUTE_H_
+#define _OSM_PREFIX_ROUTE_H_
 
 #include <complib/cl_types.h>
 #include <complib/cl_qlist.h>
 
+#ifdef __cplusplus
+#  define BEGIN_C_DECLS extern "C" {
+#  define END_C_DECLS   }
+#else				/* !__cplusplus */
+#  define BEGIN_C_DECLS
+#  define END_C_DECLS
+#endif				/* __cplusplus */
+
+BEGIN_C_DECLS
+
 typedef struct {
 	cl_list_item_t list_item;	/* must be first */
 	uint64_t prefix;		/* network order, zero means "any" */
@@ -49,4 +59,5 @@ typedef struct {
 #error ROUTER_EXP is deprecated, specify prefix routes at runtime instead (see opensm man page for details)
 #endif
 
-#endif /* _OSM_PREFIX_ROUTES_H_ */
+END_C_DECLS
+#endif /* _OSM_PREFIX_ROUTE_H_ */