Adding Rust to a C++ project shadows math functions

[teor2345]

When Rust is linked into an existing C++ project, it replaces the C libm math functions.

• Rust bug: Linking a Rust staticlib unexpectedly changes C math functions from libm to bundled ones from compiler-builtins rust-lang/rust#142119
• Chromium bug: https://issues.chromium.org/issues/419258012#comment5
• Related Rust changes: Tracking Issue for core_float_math rust-lang/rust#137578