Index: Modules/signalmodule.c
===================================================================
--- Modules/signalmodule.c	(révision 79909)
+++ Modules/signalmodule.c	(copie de travail)
@@ -198,7 +198,10 @@
 		return;
 	}
 #endif
+	/* if the handler was set up with sigaction, no need to reinstall it */
+#ifndef HAVE_SIGACTION
 	PyOS_setsig(sig_num, signal_handler);
+#endif
 }