"if" behaviour change from 2.3 to 2.4

From: Vladimir Prus (ghost_at_[hidden])
Date: 2002-03-22 04:58:50

Hi,
the following code:

l = "" a b ;

if $(l) {
ECHO "Okay" ;
}

Behaves differently in 2.3 and the most most recent version from the public 
depot. Should this be considered a bug? 

The problem is in compile.c:
LIST *
compile_eval(
PARSE	*parse,
LOL	*args )
{
...........................
switch( parse->num )
{
case EXPR_EXISTS:
if( ll && ll->string[0] ) status = 1;
^^^^^^^^ here's the problem
should check all the elements of the list.
It appears to be trivial to fix.

- Volodya