It seems quite easy to use C libraries from Rust but not the other way around. Since you cannot easily use Rust libraries from C -- where is the .h header file

It seems quite easy to use C libraries from Rust but not the other way around. Since you cannot easily use Rust libraries from C -- where is the .h header file generator? -- you cannot easily use it from any scripting engine either. How would its language constructs carry across on the C ABI anyway? So, Rust also accidentally becomes a final, top-level language, competing in that space with Javascript, Python, Ruby, PHP, Perl, Lua and so on. Rust does not stand a shadow of a chance in that space. Therefore, it can only suffer a fate worse than C++, which in spite of all problems can still be accessed from scripting engines.