This reverts commit 8de901cc.

Apparently this update breaks tools building.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

Switched to building with meson as it's faster and does not need a
dependency on cmake, which takes a long time to build.

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

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

It's already default. The only exception is mt76 which has Ninja
disabled.

Found with:

git grep BUILD_PARALLEL | cut -d ':' -f 1 | sort -u > par
git grep cmake.mk | cut -d ':' -f 1 > cmake
comm -1 -2 par cmake

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

It's faster and more reliable.

Removed ccache cmake build dependency as it's now implicit.

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

Switch to the normal tarball instead of the codeload generated one. The
latter has the potential to change hashes based on changes in the repo.

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

It looks like GitHub changed the URL path for release tarballs, thus the
download for the zstd package was always falling back to the OpenWrt
sources mirror.

Fix the GitHub URL for one which works. The file hash remains unchanged.

Signed-off-by: David Bauer <mail@david-bauer.net>

Upstream switched to building with CMake. Adjust accordingly.

Reapplied patch as upstream changed the file format.

Added HOST_BUILD_PARALLEL for faster compilation.

Added cmake tool dependency and removed circular dependencies as a
result.

Adjusted dependent tools to use NOCACHE as they are needed to build
ccache.

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

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>