diff --git a/diff.diff b/diff.diff
index c6ba6a1e81..b40470ffea 100644
--- a/diff.diff
+++ b/diff.diff
@@ -13,12 +13,12 @@ index fc6132d..6c81bcb 100644
 +typedef BOOL  (WINAPI * PFNWGLWAITFORSBCOMLPROC)(HDC hdc, INT64 traget_sbc, INT64 *ust, INT64 *msc, INT64 *sbc);
 +typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC)(HDC hdc);
 +
-+PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB;
-+PFNWGLGETSYNCVALUESOMLPROC  wglGetSyncValuesOML;
-+PFNWGLGETMSCRATEOMLPROC     wglGetMscRateOML;
-+PFNWGLSWAPBUFFERSMSCOMLPROC wglSwapBuffersMscOML;
-+PFNWGLWAITFORMSCOMLPROC     wglWaitForMscOML;
-+PFNWGLWAITFORSBCOMLPROC     wglWaitForSbcOML;
++static PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB;
++static PFNWGLGETSYNCVALUESOMLPROC  wglGetSyncValuesOML;
++static PFNWGLGETMSCRATEOMLPROC     wglGetMscRateOML;
++static PFNWGLSWAPBUFFERSMSCOMLPROC wglSwapBuffersMscOML;
++static PFNWGLWAITFORMSCOMLPROC     wglWaitForMscOML;
++static PFNWGLWAITFORSBCOMLPROC     wglWaitForSbcOML;
 +
  typedef HGLRC (APIENTRY *wglCreateContextAttribsProc)(HDC, HGLRC, const int*);
  static wglCreateContextAttribsProc pcreate_context;