From 98552f1d75ac04fa5dd07e6b23bd43cd5045a4e1 Mon Sep 17 00:00:00 2001
From: Camilla Berglund <elmindreda@elmindreda.org>
Date: Sun, 9 Mar 2014 13:18:58 +0100
Subject: [PATCH] Added caching of X11 NULL atom.

---
 src/x11_clipboard.c | 2 +-
 src/x11_init.c      | 1 +
 src/x11_platform.h  | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/x11_clipboard.c b/src/x11_clipboard.c
index d8fd4d39..e42d1b8d 100644
--- a/src/x11_clipboard.c
+++ b/src/x11_clipboard.c
@@ -139,7 +139,7 @@ static Atom writeTargetToProperty(const XSelectionRequestEvent* request)
         XChangeProperty(_glfw.x11.display,
                         request->requestor,
                         request->property,
-                        XInternAtom(_glfw.x11.display, "NULL", False),
+                        _glfw.x11._NULL,
                         32,
                         PropModeReplace,
                         NULL,
diff --git a/src/x11_init.c b/src/x11_init.c
index 33ea7baf..18d92fdd 100644
--- a/src/x11_init.c
+++ b/src/x11_init.c
@@ -524,6 +524,7 @@ static GLboolean initExtensions(void)
     detectEWMH();
 
     // Find or create string format atoms
+    _glfw.x11._NULL = XInternAtom(_glfw.x11.display, "NULL", False);
     _glfw.x11.UTF8_STRING =
         XInternAtom(_glfw.x11.display, "UTF8_STRING", False);
     _glfw.x11.COMPOUND_STRING =
diff --git a/src/x11_platform.h b/src/x11_platform.h
index 235c0f3f..25a54612 100644
--- a/src/x11_platform.h
+++ b/src/x11_platform.h
@@ -136,6 +136,7 @@ typedef struct _GLFWlibraryX11
     Atom            CLIPBOARD;
     Atom            CLIPBOARD_MANAGER;
     Atom            SAVE_TARGETS;
+    Atom            _NULL;
     Atom            UTF8_STRING;
     Atom            COMPOUND_STRING;
     Atom            ATOM_PAIR;