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diff --git a/3rdparty/glfw/source/src/posix_time.c b/3rdparty/glfw/source/src/posix_time.c
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+//========================================================================
+// GLFW 3.4 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <[email protected]>
+//
+// 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.
+//
+//========================================================================
+// It is fine to use C99 in this file because it will not be built with VS
+//========================================================================
+
+#include "internal.h"
+
+#include <unistd.h>
+#include <sys/time.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwPlatformInitTimer(void)
+{
+    _glfw.timer.posix.clock = CLOCK_REALTIME;
+    _glfw.timer.posix.frequency = 1000000000;
+
+#if defined(_POSIX_MONOTONIC_CLOCK)
+    struct timespec ts;
+    if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0)
+        _glfw.timer.posix.clock = CLOCK_MONOTONIC;
+#endif
+}
+
+uint64_t _glfwPlatformGetTimerValue(void)
+{
+    struct timespec ts;
+    clock_gettime(_glfw.timer.posix.clock, &ts);
+    return (uint64_t) ts.tv_sec * _glfw.timer.posix.frequency + (uint64_t) ts.tv_nsec;
+}
+
+uint64_t _glfwPlatformGetTimerFrequency(void)
+{
+    return _glfw.timer.posix.frequency;
+}
+