#136 Patch for out of source tree builds

[Roland Haeder]

Attached is a patch for making out of source tree builds almost possible. Builds within the source tree are not affected by this patch.

These builds can be done by following commands:

mkdir build
mkdir build/gtk-gnutella
cd build/gtk-gnutella
../../gtk-gnutella/build.sh --prefix=/some/other/prefix

They have the large benefit to have different builds available to test the data with it.

[Roland Haeder]

The only thing that is not done is the mkdep script (which is being created by Configure with a 'sed' command). Please test this patch and try to fix it. I am out of ideas with 'sed'. :(

[Roland Haeder]

patch - fixed (only mkdep one)