From 727de1378ff012cc0365e45d0220a1e958a289ff Mon Sep 17 00:00:00 2001
From: Arshia Ghafoori <arshia001@live.com>
Date: Thu, 25 Jun 2026 14:43:21 +0000
Subject: [PATCH] Fix waitpid+WNOHANG

---
 libc-top-half/musl/src/process/waitpid.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libc-top-half/musl/src/process/waitpid.c b/libc-top-half/musl/src/process/waitpid.c
index 456cca94d..4cbb1ece9 100644
--- a/libc-top-half/musl/src/process/waitpid.c
+++ b/libc-top-half/musl/src/process/waitpid.c
@@ -45,6 +45,8 @@ pid_t waitpid(pid_t pid, int *status, int options)
 
 		// Build the status code depending on what happened
 		if (code.tag == __WASI_JOIN_STATUS_TYPE_NOTHING) {
+			if ((options & WNOHANG) != 0)
+				return 0;
 			*status = 0;
 		} else if (code.tag == __WASI_JOIN_STATUS_TYPE_EXIT_NORMAL) {
 			*status = W_EXITCODE(code.u.exit_normal, 0);