From bc24716476187453e61038eee6ed24f3d0821733 Mon Sep 17 00:00:00 2001
From: Kenny Levinsen <kl@kl.wtf>
Date: Tue, 14 Jan 2020 19:54:48 +0100
Subject: [PATCH] wayland: errno does not have to be cleared

As long as errno is only read on error from an errno-setting function,
then there is no need to reset errno between uses.
---
 glfw/wl_window.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/glfw/wl_window.c b/glfw/wl_window.c
index e82fda793..61b407dd8 100644
--- a/glfw/wl_window.c
+++ b/glfw/wl_window.c
@@ -763,7 +763,6 @@ handleEvents(monotonic_t timeout)
 
     while (wl_display_prepare_read(display) != 0) {
         while(1) {
-            errno = 0;
             int num_dispatched = wl_display_dispatch_pending(display);
             if (num_dispatched < 0) {
                 if (errno == EAGAIN) continue;
@@ -778,7 +777,6 @@ handleEvents(monotonic_t timeout)
     // If an error different from EAGAIN happens, we have likely been
     // disconnected from the Wayland session, try to handle that the best we
     // can.
-    errno = 0;
     if (wl_display_flush(display) < 0 && errno != EAGAIN)
     {
         wl_display_cancel_read(display);