--- rpl/src/instructions_d5.c	2011/09/26 15:57:12	1.75
+++ rpl/src/instructions_d5.c	2011/10/04 19:32:35	1.76
@@ -1231,28 +1231,30 @@ instruction_detach(struct_processus *s_e
 			return;
 		}
 
-#		ifndef OS2
-#		ifndef Cygwin
+#		ifdef SCHED_OTHER
 		if (pthread_attr_setschedpolicy(&attributs, SCHED_OTHER) != 0)
 		{
 			(*s_etat_processus).erreur_systeme = d_es_processus;
 			return;
 		}
+#		endif
 
+#		ifdef PTHREAD_EXPLICIT_SCHED
 		if (pthread_attr_setinheritsched(&attributs,
 				PTHREAD_EXPLICIT_SCHED) != 0)
 		{
 			(*s_etat_processus).erreur_systeme = d_es_processus;
 			return;
 		}
+#		endif
 
+#		ifdef PTHREAD_SCOPE_SYSTEM
 		if (pthread_attr_setscope(&attributs, PTHREAD_SCOPE_SYSTEM) != 0)
 		{
 			(*s_etat_processus).erreur_systeme = d_es_processus;
 			return;
 		}
 #		endif
-#		endif
 
 		(*s_argument_thread).s_etat_processus = s_etat_processus;