*initHEADmaster

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diff --git a/source/3rd-party/SDL2/src/video/cocoa/SDL_cocoaclipboard.m b/source/3rd-party/SDL2/src/video/cocoa/SDL_cocoaclipboard.m
new file mode 100644
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+++ b/source/3rd-party/SDL2/src/video/cocoa/SDL_cocoaclipboard.m
@@ -0,0 +1,103 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "../../SDL_internal.h"
+
+#if SDL_VIDEO_DRIVER_COCOA
+
+#include "SDL_cocoavideo.h"
+#include "../../events/SDL_clipboardevents_c.h"
+
+int
+Cocoa_SetClipboardText(_THIS, const char *text)
+{ @autoreleasepool
+{
+    SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
+    NSPasteboard *pasteboard;
+    NSString *format = NSPasteboardTypeString;
+
+    pasteboard = [NSPasteboard generalPasteboard];
+    data->clipboard_count = [pasteboard declareTypes:[NSArray arrayWithObject:format] owner:nil];
+    [pasteboard setString:[NSString stringWithUTF8String:text] forType:format];
+
+    return 0;
+}}
+
+char *
+Cocoa_GetClipboardText(_THIS)
+{ @autoreleasepool
+{
+    NSPasteboard *pasteboard;
+    NSString *format = NSPasteboardTypeString;
+    NSString *available;
+    char *text;
+
+    pasteboard = [NSPasteboard generalPasteboard];
+    available = [pasteboard availableTypeFromArray:[NSArray arrayWithObject:format]];
+    if ([available isEqualToString:format]) {
+        NSString* string;
+        const char *utf8;
+
+        string = [pasteboard stringForType:format];
+        if (string == nil) {
+            utf8 = "";
+        } else {
+            utf8 = [string UTF8String];
+        }
+        text = SDL_strdup(utf8);
+    } else {
+        text = SDL_strdup("");
+    }
+
+    return text;
+}}
+
+SDL_bool
+Cocoa_HasClipboardText(_THIS)
+{
+    SDL_bool result = SDL_FALSE;
+    char *text = Cocoa_GetClipboardText(_this);
+    if (text) {
+        result = text[0] != '\0' ? SDL_TRUE : SDL_FALSE;
+        SDL_free(text);
+    }
+    return result;
+}
+
+void
+Cocoa_CheckClipboardUpdate(struct SDL_VideoData * data)
+{ @autoreleasepool
+{
+    NSPasteboard *pasteboard;
+    NSInteger count;
+
+    pasteboard = [NSPasteboard generalPasteboard];
+    count = [pasteboard changeCount];
+    if (count != data->clipboard_count) {
+        if (data->clipboard_count) {
+            SDL_SendClipboardUpdate();
+        }
+        data->clipboard_count = count;
+    }
+}}
+
+#endif /* SDL_VIDEO_DRIVER_COCOA */
+
+/* vi: set ts=4 sw=4 expandtab: */