We check that the simgrid_init function exists rather than the MSG_main...

We check that the simgrid_init function exists rather than the MSG_main function which is no longer used by default in simgrid

modules/find/FindSIMGRID.cmake

@@ -111,7 +111,7 @@ if(SIMGRID_FOUND AND SIMGRID_LIBRARIES)
   # test link
   unset(SIMGRID_WORKS CACHE)
   include(CheckFunctionExists)
-  check_function_exists(MSG_main SIMGRID_WORKS)
+  check_function_exists(simgrid_init SIMGRID_WORKS)
   mark_as_advanced(SIMGRID_WORKS)
 
   if(SIMGRID_WORKS)
@@ -148,4 +148,4 @@ find_package_handle_standard_args(SIMGRID DEFAULT_MSG
   # Add imported targe
 if (SIMGRID_FOUND)
   morse_create_imported_target(SIMGRID)
-endif()
\ No newline at end of file
+endif()