// One C symbol bound twice with DIFFERENT sx signatures is diagnosed
// (issue 0128): the first registration used to silently win, mis-typing
// every call through the second declaration. Equal signatures share one
// registration silently (see std's read/write bound by several modules).
#import "modules/std.sx";

libc :: #library "c";
// std/process.sx already binds getenv as `-> *u8`; this view disagrees.
getenv_opt :: (name: [:0]u8) -> ?[:0]u8 #foreign libc "getenv";

main :: () -> i32 {
    p := getenv_opt("PATH");
    if p == null { return 1; }
    return 0;
}