problem with target specific variables

[Simon Plain]

Hello, hopefully this hasn't been reported already.

The following makefile gives an incorrect response:

------------------------------------
default : MYVAR = value1
default : MYVAR += value2

default:
    echo $(MYVAR)
-------------------------------------

When this is tested with 3.79.1 under linux and cygwin, the response is
echo  value2
value2

when tested with 3.77 under linux the response is
echo value1 value2
value1 value2

which I believe is the correct response.