File silence-signedness-change-through-implicit-conversion-error.patch of Package libdispatch

From 38872e2d44d66d2fb94186988509defc734888a5 Mon Sep 17 00:00:00 2001
From: Anthony Latsis <alatsis@apple.com>
Date: Mon, 9 Jun 2025 19:42:15 +0100
Subject: [PATCH] Silence signedness change through implicit conversion error

The error pops up when using the rebranch Clang (stable/20250402):

```
/home/build-user/swift-corelibs-libdispatch/src/event/event_epoll.c:92:27: error: implicit conversion changes signedness: 'int' to 'uint32_t' (aka 'unsigned int') [-Werror,-Wsign-conversion]
92 |         return dmn->dmn_events & ~dmn->dmn_disarmed_events;
   |                                ~ ^~~~~~~~~~~~~~~~~~~~~~~~~
```
---
 src/event/event_epoll.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/event/event_epoll.c b/src/event/event_epoll.c
index f31d13e..b7fe837 100644
--- a/src/event/event_epoll.c
+++ b/src/event/event_epoll.c
@@ -89,7 +89,9 @@ DISPATCH_ALWAYS_INLINE
 static inline uint32_t
 _dispatch_muxnote_armed_events(dispatch_muxnote_t dmn)
 {
-	return dmn->dmn_events & ~dmn->dmn_disarmed_events;
+  uint32_t events = dmn->dmn_events;
+  uint16_t disarmed_events = dmn->dmn_disarmed_events;
+  return events & ~(uint32_t)disarmed_events;
 }
 
 DISPATCH_ALWAYS_INLINE
-- 
2.50.1