gcc4x packages shouldn't build in source directory

[Rainer Müller]

On 2009-10-18 00:55 , Jack Howarth wrote:
>    I just noticed that MacPorts is building the FSF gcc
> releases within the source tree. The upstream FSF gcc
> developers frown upon this as poor technique. All of the
> gcc4X packages should be creating a separate build directory,
> eg darwin_objdir, outside of the source tree and then
> executing both configure and make from within this
> build directory.

What is the problem with a build inside the source? I don't understand
the reason for an out-of-place build if you only do it once and delete
the source directory afterwards anyway.

Rainer