cmake-cargo toolchain alignment

transform

CMakeToolchainConfig -> CargoEnvironmentFlags

Map CMake toolchain variables to Rust target flags to cross-compile combined C/Rust libraries.

Problem it solves

Cross-compiling C projects with Rust dependencies requires aligning two separate, non-communicating compiler toolchain configurations.

Consumes

CMakeToolchainConfig

Emits

CargoEnvironmentFlags

Distilled from 1 source

The real projects this mechanism was found in. Attribution is the point — this is how the best teams actually do it.