Makefile question

[Kövesdán Gábor]

Hello,

I'm trying to make a new port, but the software I'm porting has an 
awkward configure script, and when I run ./configure --prefix=/usr/local 
then every file goes to directly to /usr/local not to /usr/local/bin, 
/usr/local/etc, ...
Thus I would like to install it into /usr/local/appname.
I wrote to my Makefile:

GNU_CONFIGURE=  YES
CONFIGURE_ARGS= --prefix=${PREFIX}/appname

But the situation is the same. Everything goes directly to /usr/local, 
as if I wrote just --prefix=${PREFIX}.

What can I do now?

Cheers,

Gábor Kövesdán