Remove built binaries and libraries in clean target, so that it behaves

in a more conventional way, making way for a complete rebuild.

Add proper parcel dependencies in GNU make to allow rebuilding just 
those parcels whose contents have changed. "make" now does what "make 
clean" would have done before, i.e. rebuild just those files which have 
changed, and their corresponding parcels.

Use cp -p to copy files into parcel directory, so that files which have 
not changed will not cause the parcel tarball containing them to be 
rebuilt (-p is specified by POSIX 2004).

0 files changed, 0 insertions, 0 deletions