Patch to glint driver for 4.2.0

[Roland Dreier <roland@digitalvampire.org>]

I'm trying out the 4.2.0-pre1v1 xserver-xfree86 on i386.  I have a
3DLabs Oxygen VX1-1600SW video card (which uses the glint driver)
hooked up to an SGI flat panel.  Without the following patch (taken
from xfree86 CVS), every so often my display will turn funky colors,
or video output will die altogether.  Please include this patch in the
Debian package.

Thanks,
  Roland

--- xc/programs/Xserver/hw/xfree86/drivers/glint/glint_driver.c.orig	Mon Jun 24 07:31:53 2002
+++ xc/programs/Xserver/hw/xfree86/drivers/glint/glint_driver.c	Mon Jun 24 07:33:34 2002
@@ -3607,12 +3631,15 @@ GLINTBlockHandler (
     ScreenPtr      pScreen = screenInfo.screens[i];
     ScrnInfoPtr    pScrn = xf86Screens[i];
     GLINTPtr       pGlint = GLINTPTR(pScrn);
+    int sigstate = xf86BlockSIGIO();
 
     if(pGlint->CursorColorCallback) 
 	(*pGlint->CursorColorCallback)(pScrn);
 
     if(pGlint->LoadCursorCallback) 
 	(*pGlint->LoadCursorCallback)(pScrn);
+
+    xf86UnblockSIGIO(sigstate);
 
     pScreen->BlockHandler = pGlint->BlockHandler;
     (*pScreen->BlockHandler) (i, blockData, pTimeout, pReadmask);

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