+#ifndef EGL_KHR_reusable_sync
+#define EGL_KHR_reusable_sync 1
+
+typedef void* EGLSyncKHR;
+typedef khronos_utime_nanoseconds_t EGLTimeKHR;
+
+#define EGL_SYNC_STATUS_KHR 0x30F1
+#define EGL_SIGNALED_KHR 0x30F2
+#define EGL_UNSIGNALED_KHR 0x30F3
+#define EGL_TIMEOUT_EXPIRED_KHR 0x30F5
+#define EGL_CONDITION_SATISFIED_KHR 0x30F6
+#define EGL_SYNC_TYPE_KHR 0x30F7
+#define EGL_SYNC_REUSABLE_KHR 0x30FA
+#define EGL_SYNC_FLUSH_COMMANDS_BIT_KHR 0x0001 /* eglClientWaitSyncKHR <flags> bitfield */
+#define EGL_FOREVER_KHR 0xFFFFFFFFFFFFFFFFull
+#define EGL_NO_SYNC_KHR ((EGLSyncKHR)0)
+#ifdef EGL_EGLEXT_PROTOTYPES
+EGLAPI EGLSyncKHR EGLAPIENTRY eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list);
+EGLAPI EGLBoolean EGLAPIENTRY eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync);
+EGLAPI EGLint EGLAPIENTRY eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout);
+EGLAPI EGLBoolean EGLAPIENTRY eglSignalSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLenum mode);
+EGLAPI EGLBoolean EGLAPIENTRY eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint attribute, EGLint *value);
+#endif /* EGL_EGLEXT_PROTOTYPES */
+typedef EGLSyncKHR (EGLAPIENTRYP PFNEGLCREATESYNCKHRPROC) (EGLDisplay dpy, EGLenum type, const EGLint *attrib_list);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLDESTROYSYNCKHRPROC) (EGLDisplay dpy, EGLSyncKHR sync);
+typedef EGLint (EGLAPIENTRYP PFNEGLCLIENTWAITSYNCKHRPROC) (EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSIGNALSYNCKHRPROC) (EGLDisplay dpy, EGLSyncKHR sync, EGLenum mode);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLGETSYNCATTRIBKHRPROC) (EGLDisplay dpy, EGLSyncKHR sync, EGLint attribute, EGLint *value);
+#endif