[#2181] Fixed daemon issues

sflphone-common/libs/pjproject/Makefile

@@ -70,7 +70,6 @@ xhdrid:
 		cp /tmp/id $$f; \
 	done
 
-prefix = /usr/local
 install:
 	mkdir -p $(DESTDIR)$(prefix)/lib
 	cp -L $$(find . -name '*.a') $(DESTDIR)$(prefix)/lib

sflphone-common/src/sip/sipvoiplink.cpp

@@ -3657,6 +3657,8 @@ std::vector<std::string> SIPVoIPLink::getAllIpInterface (void)
         ifaceList.push_back (std::string (tmpAddr));
         _debug ("Local interface %s\n", tmpAddr);
     }
+
+    return ifaceList;
 }