Change Details

Allow Rust to build against ports LLVM. - Build issues in PR/223300,223342 are no longer reproducible with Rust 1.56 and LLVM 13. - https://github.com/rust-lang/rust/issues/46181 is fixed. - Upstream tracks upstream LLVM "pretty closely" [1][2][3]. lang/rust-nightly LLVM_VER can be set after inclusion of MASTERDIR/Makefile. Upstream allows [4] build with LLVM >=12, but I'm not sure about rust@ policy. WASM depends on LLVM backend; I don't use WASM and didn't test it. If anyone is interested in PORT_LLVM and WASM, a wasm target in llvm ports might be needed. llvm-config in cargo.toml implies linking to LLVM libraries, -Lnative is passed for linking to proceed. LIB_DEPENDS is set to libLLVM (a la graphics/mesa-devel); ldd on rustc binaries to get the exact sonames isn't useful. [1]: https://github.com/rust-lang/rust/issues/46437#issuecomment-426696032 [2]: https://github.com/rust-lang/llvm-project/commits/a7348ae0d [3]: https://github.com/rust-lang/rust/commit/03cf07f85 [4]: https://github.com/rust-lang/rust/commit/e9f545b9a

Allow Rust to build against ports LLVM. - Build issues in PR/223300,223342 are no longer reproducible with Rust 1.56 and LLVM 13. - https://github.com/rust-lang/rust/issues/46181 is fixed. - Upstream tracks upstream LLVM "pretty closely" [1][2][3]. lang/rust-nightly LLVM_VER can be set after inclusion of MASTERDIR/Makefile. Upstream allows [4] build with LLVM >=12, but I'm not sure about rust@ policy. WASM depends on LLVM backend; ~~I don't use WASM and didn't test it. If anyone is interested in PORT_LLVM and WASM, a wasm target in llvm ports might be needed.~~ UPDATE: Firefox >=95 could build with BE_WASM for devel/llvm13 and WASM=on for lang/rust. llvm-config in cargo.toml implies linking to LLVM libraries, -Lnative is passed for linking to proceed. LIB_DEPENDS is set to libLLVM (a la graphics/mesa-devel); ldd on rustc binaries to get the exact sonames isn't useful. [1]: https://github.com/rust-lang/rust/issues/46437#issuecomment-426696032 [2]: https://github.com/rust-lang/llvm-project/commits/a7348ae0d [3]: https://github.com/rust-lang/rust/commit/03cf07f85 [4]: https://github.com/rust-lang/rust/commit/e9f545b9a

Allow Rust to build against ports LLVM. - Build issues in PR/223300,223342 are no longer reproducible with Rust 1.56 and LLVM 13. - https://github.com/rust-lang/rust/issues/46181 is fixed. - Upstream tracks upstream LLVM "pretty closely" [1][2][3]. lang/rust-nightly LLVM_VER can be set after inclusion of MASTERDIR/Makefile. Upstream allows [4] build with LLVM >=12, but I'm not sure about rust@ policy. WASM depends on LLVM backend; ~~I don't use WASM and didn't test it. If anyone is interested in PORT_LLVM and WASM, a wasm target in llvm ports might be needed.~~ UPDATE: Firefox >=95 could build with BE_WASM for devel/llvm13 and WASM=on for lang/rust. llvm-config in cargo.toml implies linking to LLVM libraries, -Lnative is passed for linking to proceed. LIB_DEPENDS is set to libLLVM (a la graphics/mesa-devel); ldd on rustc binaries to get the exact sonames isn't useful. [1]: https://github.com/rust-lang/rust/issues/46437#issuecomment-426696032 [2]: https://github.com/rust-lang/llvm-project/commits/a7348ae0d [3]: https://github.com/rust-lang/rust/commit/03cf07f85 [4]: https://github.com/rust-lang/rust/commit/e9f545b9a