This patch, taken from buildroot, avoids the use of host paths when
compiling third-party extensions.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>

This was a bit overdue.
I did not know about this methodology.
Reduces patch fuzz.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

I admit this may be be a bit aggressive, but the lang
folder is getting cluttered/filled up with Python, PHP, Perl,
Ruby, etc. packages.

Makes sense to try to group them into per-lang folders.

I took the Pythons.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

Patch taken from buildroot:
  http://git.buildroot.net/buildroot/tree/package/python/python-008-distutils-use-python-sysroot.patch

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>