--- rpl/src/instructions_d5.c	2010/02/28 14:47:14	1.4
+++ rpl/src/instructions_d5.c	2010/03/04 10:09:31	1.5
@@ -2515,9 +2515,11 @@ instruction_detach(struct_processus *s_e
 
 		liberation(s_etat_processus, s_objet);
 
+#		ifndef Cygwin
 		free((*s_etat_processus).pile_signal.ss_sp);
-		free((*s_etat_processus).definitions_chainees);
+#		endif
 
+		free((*s_etat_processus).definitions_chainees);
 		free((*s_etat_processus).nom_fichier_historique);
 
 		for(i = 0; i < d_NOMBRE_INTERRUPTIONS; i++)