[jamming] Expansion Problem?

[Christopher Seiwald]

| Using jam 2.5 - is this normal?
|
| DEFAULT = e f ;
| VAR = a b c ;
| echo $(VAR:E=$(DEFAULT)) ;
|
|  >jam
| a b c a b c
| ...found 7 target(s)...
|
| The E modifier should only use it's value if the variable is unset?

It's consistent with the rest of the productizing variable expansion.

Just as if you said:

	DEFAULT = e f ;
	VAR = ;
	echo xxx-$(VAR:E=$(DEFAULT)) ;

You'd get 

	% jam
	xxx-e xxx-f

That's not to say it is useful or not surprising, but it is the way the
rest of it works.

Christopher