Fix build with recent simgrid

configure.ac

@@ -1,6 +1,6 @@
 # StarPU --- Runtime system for heterogeneous multicore architectures.
 #
-# Copyright (C) 2009-2016  Université de Bordeaux
+# Copyright (C) 2009-2017  Université de Bordeaux
 # Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016  CNRS
 # Copyright (C) 2011  Télécom-SudParis
 # Copyright (C) 2011, 2012, 2014-2016  INRIA
@@ -1106,6 +1106,7 @@ if test x$enable_simgrid = xyes ; then
 	)
 	AC_CHECK_HEADERS([simgrid/msg.h], [AC_DEFINE([STARPU_HAVE_SIMGRID_MSG_H], [1], [Define to 1 if you have msg.h in simgrid/.])])
 	AC_CHECK_HEADERS([xbt/synchro.h], [AC_DEFINE([STARPU_HAVE_XBT_SYNCHRO_H], [1], [Define to 1 if you have synchro.h in xbt/.])])
+	AC_CHECK_TYPES([smx_actor_t], [AC_DEFINE([STARPU_HAVE_SMX_ACTOR_T], [1], [Define to 1 if you have the smx_actor_t type.])], [], [[#include <simgrid/simix.h>]])
    	AC_CHECK_FUNCS([MSG_process_join MSG_process_attach MSG_get_as_by_name MSG_environment_get_routing_root MSG_host_get_speed xbt_mutex_try_acquire smpi_process_set_user_data sg_link_name])
 	AC_CHECK_FUNCS([xbt_barrier_init], [AC_DEFINE([STARPU_SIMGRID_HAVE_XBT_BARRIER_INIT], [1], [Define to 1 if you have the `xbt_barrier_init' function.])])
 	AC_CHECK_DECLS([smpi_process_set_user_data], [], [], [[#include <smpi/smpi.h>]])

src/core/simgrid.c

@@ -813,7 +813,12 @@ typedef struct{
 
 static int _starpu_simgrid_xbt_thread_create_wrapper(int argc, char *argv[])
 {
-  smx_process_t self = SIMIX_process_self();
+#ifdef HAVE_SMX_ACTOR_T
+  smx_actor_t
+#else
+  smx_process_t
+#endif
+	  self = SIMIX_process_self();
   thread_data_t *t = SIMIX_process_self_get_data(self);
   simcall_process_set_data(self, t->father_data);
   t->code(t->userparam);