Klaus Heinz wrote:

> If this extension can only be used as a test for a variable definition,
> the words "actually an expression" in the man page are misleading, IMO.

Ok, call me stupid. I don't know what went wrong with my previous tests,
but now I get "false" for

  TESTVAR=bla

  all:
  	echo ${empty(TESTVAR):?true:false}

On the other hand, I still get an error for

  	echo ${empty(TESTVAR:Mbla):?true:false}

make: Bad conditional expression `empty(TESTVAR' in empty(TESTVAR?true:false

The missing closing parenthesis probably hints at some bug.

ciao
     Klaus