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* Update to use llvm-r1 eclass instead of llvm, zig and
zig-utils eclasses instead of local get_zig_mcpu etc. functions.
* Port "llvm USE-flag" from 9999 ebuild.
* "stage3" compilation is unified by combining build.zig options,
now both cmake (+llvm) and bootstrap.c (-llvm) build up to "zig2"
target, after that we use zig.eclass with common options.
* Before migrating to the zig.eclass, test steps in src_test
have been ran sequentially in for-loop, which allowed logic inside
each step to ran parallelly but not several steps at a time. Now we
use upstream "test" step instead of separately calling all dependant
steps, so that build system can now ran all of them paralelly.
This means time spent in `src_test` is now significantly shorter.
* "zig2" in both scenarios now has explicit target which is set by
using zig-utils.eclass functions on a CBUILD/CHOST. This allows us
to skip convertion logic in CMake and bootstrap.c, so that instead
of patching them we can just update converter in zig-utils.eclass
and unify target behaviour.
* Disable autodocs generation for "std" module, since it can now
be generated on-fly with `zig std` command.
Signed-off-by: Eric Joldasov <bratishkaerik@landless-city.net>
Signed-off-by: Sam James <sam@gentoo.org>
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