Fixed g++ with Vortex, _start stil not initializing propoerly

runtime/vx_api/vx_api.c

@@ -2,6 +2,9 @@
 #include "../intrinsics/vx_intrinsics.h"
 #include "vx_api.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 
 func_t global_function_pointer;
@@ -36,7 +39,9 @@ void vx_spawnWarps(unsigned numWarps, unsigned numThreads, func_t func_ptr, void
 
 }
 
-
+#ifdef __cplusplus
+}
+#endif
 // void vx_cl_spawnWarps(char * args, char * pocl_context, long group_x, long group_y, long group_z)
 // {
 // 	if (group_z != 1)

runtime/vx_api/vx_api.h

@@ -3,6 +3,9 @@
 
 #define VX_API_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 typedef void (*func_t)(void *);
 
@@ -15,7 +18,9 @@ void vx_cl_spawnWarps (char * /* args */,
 					     long /* group_y */,
 					     long /* group_z */);
 
-
+#ifdef __cplusplus
+}
+#endif
 
 
 #endif