{"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"//"}]}
        // TODO(antoyo): remove this environment variable.
        // now because this requires a particular setup (same gcc/lto1/lto-wrapper commit as libgccjit).
        let fat_lto = env::var("EMBED_LTO_BITCODE").as_deref() == Ok("1");