GNU_CONFIGURE behavior

[Clement Laforet]

Hi,

Today I worked on harvest fix (and update).
I started to use USE_LIBTOOL, but --prefix=${PREFIX}/${PORTNAME} doesn't
work, due to GNU_CONFIGURE.
Some software, like harvest, need to be put in their own directory
because they contain libraries that conflict with other (i.e. libcurl).

Overriding ${PREFIX} is not a solution.
Is this the expected behavior or we can consider this as a lack of implementation ?
regards,

clem