Fixes build with enabled ASLR PIE

Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>

CFLAGS were not being passed. This was breaking builds with ASLR.

Pass proper PIC command to gcc with $(fPIC).

Don't install static libraries. Keep those for InstallDev only.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Technically the same version, but this uses the normal tarball instead of
a random GitHub repository.

Cleaned up Makefile as a result.

Removed Python dependency. rbgen is not used for the package.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Signed-off-by: Mislav Novakovic <mislav.novakovic@sartura.hr>