Index: Makefile
===================================================================
--- Makefile	(révision 44459)
+++ Makefile	(copie de travail)
@@ -114,6 +114,7 @@
   ASTLIBDIR=$(INSTALL_PREFIX)/usr/lib/asterisk
   ASTVARLIBDIR=$(INSTALL_PREFIX)/var/lib/asterisk
   ASTETCDIR=$(INSTALL_PREFIX)/etc/asterisk
+  ASTROLLBACKDIR=$(INSTALL_PREFIX)/var/lib/asterisk/oldbin
   ASTSPOOLDIR=$(INSTALL_PREFIX)/var/spool/asterisk
   ASTLOGDIR=$(INSTALL_PREFIX)/var/log/asterisk
   ASTHEADERDIR=$(INSTALL_PREFIX)/usr/include/asterisk
@@ -630,6 +631,25 @@
 NEWHEADERS=$(notdir $(wildcard include/asterisk/*.h))
 OLDHEADERS=$(filter-out $(NEWHEADERS),$(notdir $(wildcard $(DESTDIR)$(ASTHEADERDIR)/*.h)))
 
+rollback:
+	mkdir -p $(DESTDIR)$(ASTROLLBACKDIR)/bin
+	mkdir -p $(DESTDIR)$(ASTROLLBACKDIR)/modules
+	if [ -f $(DESTDIR)$(ASTSBINDIR)/asterisk ]; then \
+		echo "BACKUP: " $(DESTDIR)$(ASTSBINDIR)/asterisk $(DESTDIR)$(ASTROLLBACKDIR)/bin/ ; \
+		cp -f $(DESTDIR)$(ASTSBINDIR)/asterisk $(DESTDIR)$(ASTROLLBACKDIR)/bin/; \
+	fi ; \
+	if [ -d $(DESTDIR)$(MODULES_DIR) ]; then \
+		echo "BACKUP: "  $(DESTDIR)$(MODULES_DIR)/* $(DESTDIR)$(ASTROLLBACKDIR)/modules/; \
+		cp -f $(DESTDIR)$(MODULES_DIR)/* $(DESTDIR)$(ASTROLLBACKDIR)/modules/; \
+	fi ; \
+
+rollback-install:
+	if [ -f  $(DESTDIR)$(ASTROLLBACKDIR)/bin/asterisk ]; then $(INSTALL) -m 755 $(DESTDIR)$(ASTROLLBACKDIR)/bin/asterisk $(DESTDIR)$(ASTSBINDIR)/; fi
+
+	if [ -d $(DESTDIR)$(ASTROLLBACKDIR)/modules/ ]; then \
+		cp -f $(DESTDIR)$(ASTROLLBACKDIR)/modules/* $(DESTDIR)$(MODULES_DIR)/; \
+	fi ; \
+
 bininstall: all
 	mkdir -p $(DESTDIR)$(MODULES_DIR)
 	mkdir -p $(DESTDIR)$(ASTSBINDIR)