port to meson cargoHEADmasterfeature/port-to-meson-cargo

Use the new unstable meson cargo support. This simplifies the
meson.build script and allows to use crates such as clap that require
picking up features from Cargo.toml.

This also allows us to not embed thiserror in subprojects, and instead
use a wrap file with a custom meson.build and some patches to make it
compile without running its build.rs script.

1 files changed, 0 insertions, 33 deletions

diff --git a/subprojects/thiserror/build/probe.rs b/subprojects/thiserror/build/probe.rs
deleted file mode 100644
index ee126d4..0000000
--- a/subprojects/thiserror/build/probe.rs
+++ /dev/null
@@ -1,33 +0,0 @@
-// This code exercises the surface area that we expect of the Error generic
-// member access API. If the current toolchain is able to compile it, then
-// thiserror is able to provide backtrace support.
-
-#![no_std]
-#![feature(error_generic_member_access)]
-
-use core::error::{Error, Request};
-use core::fmt::{self, Debug, Display};
-
-struct MyError(Thing);
-struct Thing;
-
-impl Debug for MyError {
-    fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result {
-        unimplemented!()
-    }
-}
-
-impl Display for MyError {
-    fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result {
-        unimplemented!()
-    }
-}
-
-impl Error for MyError {
-    fn provide<'a>(&'a self, request: &mut Request<'a>) {
-        request.provide_ref(&self.0);
-    }
-}
-
-// Include in sccache cache key.
-const _: Option<&str> = option_env!("RUSTC_BOOTSTRAP");