Weird "override" behaviour

[Peter Eisentraut]

peter ~$ cat Makefile
override FOO := foo
 
FOO += bar
 
default:
        @echo $(FOO)
peter ~$ make
foo

*** but ***

peter ~$ cat Makefile
FOO := foo
 
override FOO += bar
 
default:
        @echo $(FOO)
peter ~$ make
foo bar

(both 3.76.1 and 3.79.1)

I'd argue the first is wrong, but at least it's not what the documentation
says.

-- 
Peter Eisentraut      address@hidden       http://yi.org/peter-e/