/* Process creation/destruction callbacks */
typedef void (*void_pfn_smxprocess_t) (smx_actor_t);
-extern int smx_context_stack_size;
+extern unsigned smx_context_stack_size;
extern int smx_context_stack_size_was_set;
-extern int smx_context_guard_size;
+extern unsigned smx_context_guard_size;
extern int smx_context_guard_size_was_set;
SG_BEGIN_DECL()