// `#import` is non-transitive for C-import functions: main imports b,
// b imports c, so main must NOT see c's lib-less `#foreign` / `extern`
// C functions directly. Referencing either is rejected by the
// C-import visibility gate (lower/decl.zig `c_import_bare`).
//
// Equivalence lock (FFI-linkage Part B): the legacy `#foreign` form and
// the new `extern` keyword are two spellings of the same lib-less
// C-symbol import, so they must produce the SAME "C function not
// visible" diagnostic — not the generic top-level-name wording. This
// pins that equivalence as a prerequisite for migrating the fn-decl
// `#foreign` path onto `extern`.
#import "modules/std.sx";
#import "1228-ffi-extern-c-non-transitive/b.sx";

main :: () -> i32 {
    print("{}\n", c_foreign_abs(-3));
    print("{}\n", c_extern_abs(-4));
    return 0;
}