--- rpl/src/instructions_d5.c	2010/10/02 18:02:21	1.44
+++ rpl/src/instructions_d5.c	2010/12/14 15:46:24	1.45
@@ -2862,8 +2862,11 @@ instruction_detach(struct_processus *s_e
 		liberation(s_etat_processus, s_objet);
 
 #		if !defined(Cygwin) && !defined(OpenBSD)
-		(*s_etat_processus).pile_signal.ss_flags = SS_DISABLE;
-		sigaltstack(&((*s_etat_processus).pile_signal), NULL);
+		do
+		{
+			(*s_etat_processus).pile_signal.ss_flags = SS_DISABLE;
+		}
+		while(sigaltstack(&((*s_etat_processus).pile_signal), NULL) != 0);
 		free((*s_etat_processus).pile_signal.ss_sp);
 #		endif