Make this a little more deterministic... we want the latest value, not just a 1 somewhere.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@280628 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/Makefile

@@ -26,7 +26,7 @@ OBJS=$(filter-out $(OBJSFILTER),$(SRC:.c=.o))
 # otherwise modules will not have them available if none of the static
 # objects use it.
 OBJS+=stdtime/localtime.o
-ifneq ($(findstring 1,$(WEAKREF)),1)
+ifneq ($(firstword $(subst :, ,$(WEAKREF))),1)
 OBJS+=../res/res_adsi.o
 endif