Add .par functionality (like Java .jar)

[Kragen Sitaker]

Paul Moore <gustav at morpheus.demon.co.uk> writes:
> The main lack is the ability to handle compiled extensions, but you're
> never going to get that without OS support. Just ship the necessary
> .dll/.so files separately, and manipulate sys.path, if you need to.

Maybe on Windows, but you don't need OS support on Linux.  The
.so-loading equipment on Linux is purely user-level code --- it just
uses mmap() to map in the files.  This is done in elf/dl-open.c and
elf/dl-load.c in glibc.