Index: Makefile
===================================================================
--- Makefile	(révision 73663)
+++ Makefile	(copie de travail)
@@ -133,6 +133,7 @@
 # when starting Asterisk
 ASTCONFPATH=$(ASTETCDIR)/asterisk.conf
 MODULES_DIR=$(ASTLIBDIR)/modules
+ASTROLLBACKDIR=$(ASTLIBDIR)/oldbin
 AGI_DIR=$(ASTDATADIR)/agi-bin
 
 # If you use Apache, you may determine by a grep 'DocumentRoot' of your httpd.conf file
@@ -411,6 +412,48 @@
 NEWHEADERS=$(notdir $(wildcard include/asterisk/*.h))
 OLDHEADERS=$(filter-out $(NEWHEADERS),$(notdir $(wildcard $(DESTDIR)$(ASTHEADERDIR)/*.h)))
 
+# Brief support for backup/restore of working binaries.
+# contact tristan.mahe@gmail.com if you need further enhancements
+rollback:
+	mkdir -p $(DESTDIR)$(ASTROLLBACKDIR)/bin
+	mkdir -p $(DESTDIR)$(ASTROLLBACKDIR)/modules
+	mkdir -p $(DESTDIR)$(ASTROLLBACKDIR)/headers
+	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/; \
+		rm -f $(DESTDIR)$(ASTROLLBACKDIR)/modules/*; \
+		cp -f $(DESTDIR)$(MODULES_DIR)/* $(DESTDIR)$(ASTROLLBACKDIR)/modules/; \
+	fi ; \
+	if [ -d $(DESTDIR)$(ASTHEADERDIR) ]; then \
+		echo "BACKUP: " $(DESTDIR)$(ASTHEADERDIR) $(DESTDIR)$(ASTROLLBACKDIR)/headers; \
+		rm -f $(DESTDIR)$(ASTROLLBACKDIR)/headers/*; \
+		cp -f $(DESTDIR)$(ASTHEADERDIR)/* $(DESTDIR)$(ASTROLLBACKDIR)/headers; \
+	fi ; \
+	if [ -f $(DESTDIR)$(includedir)/asterisk.h ]; then \
+		echo "BACKUP: " $(DESTDIR)$(includedir)/asterisk.h $(DESTDIR)$(ASTROLLBACKDIR)/asterisk.h; \
+		cp -f  $(DESTDIR)$(includedir)/asterisk.h $(DESTDIR)$(ASTROLLBACKDIR); \
+	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 \
+		echo "Restoring modules..."; \
+		rm -f $(DESTDIR)$(MODULES_DIR)/*; \
+		cp -f $(DESTDIR)$(ASTROLLBACKDIR)/modules/* $(DESTDIR)$(MODULES_DIR)/; \
+	fi ; \
+	if [ -d $(DESTDIR)$(ASTROLLBACKDIR)/headers ]; then \
+		echo "Restoring headers... "; \
+		rm -rf $(DESTDIR)$(ASTHEADERDIR)/*; \
+		cp -f $(DESTDIR)$(ASTROLLBACKDIR)/headers/* $(DESTDIR)$(ASTHEADERDIR); \
+	fi ; \
+	if [ -f $(DESTDIR)$(ASTROLLBACKDIR)/asterisk.h ]; then \
+		echo "Restoring asterisk.h"; \
+		cp -f  $(DESTDIR)$(ASTROLLBACKDIR)/asterisk.h $(DESTDIR)$(includedir); \
+	fi ; \
+
 bininstall: _all
 	mkdir -p $(DESTDIR)$(MODULES_DIR)
 	mkdir -p $(DESTDIR)$(ASTSBINDIR)