This removes Python-related build variants, and adds
PYTHON3_PKG_BUILD:=0 and minor build adjustments (where appropriate),
for non-Python packages. There should be no changes to build output.

This also updates some include paths for python3-package.mk and/or
python3-host.mk to be relative to the package Makefile.

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

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

Switched to PyPI.

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

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

With CONFIG_CCACHE, $HOSTCC is 'ccache gcc' while $TARGET_CC points to a
single wrapper script. Compiling target binaries with ccache works, but
doesn't for host binaries, because we need to supply an argv array for
argc > 1 in the meson cross file.

Always pass an array for the c and c++ compiler, and while at it, do it
for the target as well - just to be on the safe side if that ever
changes.

Fixes #10982.

Signed-off-by: Andre Heider <a.heider@gmail.com>

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

This adds a host as well as a target package.

meson.mk is provided to build packages using meson.

Signed-off-by: Andre Heider <a.heider@gmail.com>