Link also with libsrdb1

modules/db_flatstore/Makefile

@@ -10,6 +10,6 @@ LIBS=
 DEFS += -DSER_MOD_INTERFACE
 
 SERLIBPATH=../../lib
-SER_LIBS=$(SERLIBPATH)/srdb2/srdb2
+SER_LIBS=$(SERLIBPATH)/srdb2/srdb2 $(SERLIBPATH)/srdb1/srdb1
 
 include ../../Makefile.modules