Commits on May 18, 2023

1. Use cargo-ndk as a RUSTC_WRAPPER to pass --target to Clang …

   This is an alternative workaround for bbqsrc#92 that's similar to the solution
   used in ndk-build except that the `-Clink-arg rustflag` is injected via
   a RUSTC_WRAPPER instead of trying to modify CARGO_ENCODED_RUSTFLAGS.
   
   It turned out to be practically impossible to be able to reliably
   set CARGO_ENCODED_RUSTFLAGS without risking trampling over rustflags
   that might be configured via Cargo (for example `target.<cfg>.rustflags`
   are especially difficult to read outside of cargo itself)
   
   This approach avoids hitting the command line length limitations of the
   current workaround and avoids needing temporary hard links or copying
   the cargo-ndk binary to the target/ directory.
   
   Even though we've only seen quoting issues with the Windows `.cmd`
   wrappers this change to avoid using the wrapper scripts is being
   applied consistently for all platforms. E.g. considering the upstream
   recommendation to avoid the wrapper scripts if possible:
   
   https://android-review.googlesource.com/c/platform/ndk/+/2134712
   
   Fixes: bbqsrc#92
   Fixes: bbqsrc#104
   Addresses: android/ndk#1856

   

   rib committed May 18, 2023
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