make 3.79 timestamp problem

[Albert L. Ting]

Not sure if this is a solaris bug or a make bug, but it works fine in
make-3.78.1.  It appears make now treats targets with the same
timestamp as the prerequisite as out of date.  That didn't happen with
make-3.78.1. 

Albert

    all: foo
        $(foobar)
    
    foo : bar
        @echo file out of date
    
    
    test: 
        /bin/rm -f bar foo
        touch bar
        cp -p bar foo


$ make test
$ make -n foo
echo file out of date
$ make-3.78.1 -n foo
 `foo' is up to date.