searching for a comman with $(findstring)

[Mike Frysinger]

is it possible to search for a comma using $(findstring) ?  i tried escaping 
it with no luck :(

test:
        echo $(findstring -Wl,moo,$(LDFLAGS))

which obviously behaves like:
        find = -Wl
        in = moo,$(LDFLAGS)

this also fails:
        echo $(findstring -Wl\,moo,$(LDFLAGS))

the best i have is:
MOO = -Wl,moo
$(findstring $(MOO),$(LDFLAGS))

but i was hoping to do it in one line
-mike

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