%% "Boucher, Jean" <[EMAIL PROTECTED]> writes:
bj> Also, one of the situation I'm trying to test for is the empty
bj> string (in my previous example, say Y=`'), which I believe I can't
bj> test in this manner:
bj> ifeq ($(var),$(filter $(var),X `'))
bj> ...
bj> endif
Nope, you can't do that. Hm. That's tricky, because the empty string
in GNU make means "false".
You can use $(if ...)... a bit strange with an if function inside an
ifeq, but it would work. You'd have to write it specially: using the
GMSL version John created I don't think will work because the value
you're comparing it to is itself false.
Something like this would work I think (untested):
ifeq ($(var),$(if $(var),$(filter $(var),X),$(var)))
--
-------------------------------------------------------------------------------
Paul D. Smith <[EMAIL PROTECTED]> Find some GNU make tips at:
http://www.gnu.org http://make.paulandlesley.org
"Please remain calm...I may be mad, but I am a professional." --Mad Scientist
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