dev-lang/zig: add 0.13.0-r2

* 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>

1 files changed, 32 insertions, 0 deletions

diff --git a/dev-lang/zig/files/zig-0.13.0-skip-test-stack_iterator.patch b/dev-lang/zig/files/zig-0.13.0-skip-test-stack_iterator.patch
new file mode 100644
index 000000000000..e088af2102ed
--- /dev/null
+++ b/dev-lang/zig/files/zig-0.13.0-skip-test-stack_iterator.patch
@@ -0,0 +1,32 @@
+From: Eric Joldasov <bratishkaerik@landless-city.net>
+
+Skip standalone test "stack_iterator" that fail on Gentoo Linux x86_64.
+Fails in ReleaseSafe, ReleaseFast and ReleaseSmall, but not in Debug.
+Reported to upstream here https://github.com/ziglang/zig/issues/19944 .
+
+Signed-off-by: Eric Joldasov <bratishkaerik@landless-city.net>
+
+diff --git a/test/standalone/stack_iterator/shared_lib_unwind.zig b/test/standalone/stack_iterator/shared_lib_unwind.zig
+index 57513a49c6..75fddb04c9 100644
+--- a/test/standalone/stack_iterator/shared_lib_unwind.zig
++++ b/test/standalone/stack_iterator/shared_lib_unwind.zig
+@@ -35,6 +35,7 @@ extern fn frame0(
+ ) void;
+
+ pub fn main() !void {
++    if (true) return;
+     // Disabled until the DWARF unwinder bugs on .aarch64 are solved
+     if (builtin.omit_frame_pointer and comptime builtin.target.isDarwin() and builtin.cpu.arch == .aarch64) return;
+
+diff --git a/test/standalone/stack_iterator/unwind.zig b/test/standalone/stack_iterator/unwind.zig
+index 69c463a0c1..40963af63d 100644
+--- a/test/standalone/stack_iterator/unwind.zig
++++ b/test/standalone/stack_iterator/unwind.zig
+@@ -87,6 +87,7 @@ noinline fn frame0(expected: *[4]usize, unwound: *[4]usize) void {
+ }
+
+ pub fn main() !void {
++    if (true) return;
+     // Disabled until the DWARF unwinder bugs on .aarch64 are solved
+     if (builtin.omit_frame_pointer and comptime builtin.target.isDarwin() and builtin.cpu.arch == .aarch64) return;
+