Export symbols defined in the sdk.

This is the biggest "visibility" patch. Instead of doing a "export"
symbol on demand, export everything in the sdk, so that if some module
fails due to an unresolved symbol, it is because it is using a symbol
not in the sdk.

  Most exported symbols shouldn't really be made visible, neither
advertised in the sdk, as they are only used by a single shared object.

  Symbols in the sdk (or referenced in sdk macros), but not defined
anywhere include:
XkbBuildCoreState()
XkbInitialMap
XkbXIUnsupported
XkbCheckActionVMods()
XkbSendCompatNotify()
XkbDDXFakePointerButton()
XkbDDXApplyConfig()
_XkbStrCaseCmp()
_XkbErrMessages[]
_XkbErrCode
_XkbErrLocation
_XkbErrData
XkbAccessXDetailText()
XkbNKNDetailMaskText()
XkbLookupGroupAndLevel()
XkbInitAtoms()
XkbGetOrderedDrawables()
XkbFreeOrderedDrawables()
XkbConvertXkbComponents()
XkbWriteXKBSemantics()
XkbWriteXKBLayout()
XkbWriteXKBKeymap()
XkbWriteXKBFile()
XkbWriteCFile()
XkbWriteXKMFile()
XkbWriteToServer()
XkbMergeFile()
XkmFindTOCEntry()
XkmReadFileSection()
XkmReadFileSectionName()
InitExtInput()
xf86CheckButton()
xf86SwitchCoreDevice()
RamDacSetGamma()
RamDacRestoreDACValues()
xf86Bpp
xf86ConfigPix24
xf86MouseCflags[]
xf86SupportedMouseTypes[]
xf86NumMouseTypes
xf86ChangeBusIndex()
xf86EntityEnter()
xf86EntityLeave()
xf86WrapperInit()
xf86RingBell()
xf86findOptionBoolean()
xf86debugListOptions()
LoadSubModuleLocal()
LoaderSymbolLocal()
getInt10Rec()
xf86CurrentScreen
xf86ReallocatePciResources()
xf86NewSerialNumber()
xf86RandRSetInitialMode()
fbCompositeSolidMask_nx1xn
fbCompositeSolidMask_nx8888x0565C
fbCompositeSolidMask_nx8888x8888C
fbCompositeSolidMask_nx8x0565
fbCompositeSolidMask_nx8x0888
fbCompositeSolidMask_nx8x8888
fbCompositeSrc_0565x0565
fbCompositeSrc_8888x0565
fbCompositeSrc_8888x0888
fbCompositeSrc_8888x8888
fbCompositeSrcAdd_1000x1000
fbCompositeSrcAdd_8000x8000
fbCompositeSrcAdd_8888x8888
fbGeneration
fbIn
fbOver
fbOver24
fbOverlayGeneration
fbRasterizeEdges
fbRestoreAreas
fbSaveAreas
composeFunctions
VBEBuildVbeModeList()
VBECalcVbeModeIndex()
TIramdac3030CalculateMNPForClock()
shadowBufPtr
shadowFindBuf()
miRRGetScreenInfo()
RRSetScreenConfig()
RRModePruneUnused()
PixmanImageFromPicture()
extern int miPointerGetMotionEvents()
miClipPicture()
miRasterizeTriangle()
fbPush1toN()
fbInitializeBackingStore()
ddxBeforeReset()
SetupSprite()
InitSprite()
DGADeliverEvent()

  SPECIAL CASES
o defined as _X_INTERNAL
	xf86NewInputDevice()
o defined as static
	fbGCPrivateKey
	fbOverlayScreenPrivateKey
	fbScreenPrivateKey
	fbWinPrivateKey
o defined in libXfont.so, but declared in xorg/dixfont.h
	GetGlyphs()
	QueryGlyphExtents()
	QueryTextExtents()
	ParseGlyphCachingMode()
	InitGlyphCaching()
	SetGlyphCachingMode()

dix/dixutils.c

@@ -175,7 +175,7 @@ CopyISOLatin1Lowered(unsigned char *dest, unsigned char *source, int length)
     *dest = '\0';
 }
 
-int
+_X_EXPORT int
 CompareISOLatin1Lowered(unsigned char *s1, int s1len, 
 			unsigned char *s2, int s2len)
 {
@@ -276,7 +276,7 @@ bad:
     return rc;
 }
 
-int
+_X_EXPORT int
 AlterSaveSetForClient(ClientPtr client, WindowPtr pWin, unsigned mode,
                       Bool toRoot, Bool map)
 {
@@ -332,7 +332,7 @@ AlterSaveSetForClient(ClientPtr client, WindowPtr pWin, unsigned mode,
     return(Success);
 }
 
-void
+_X_EXPORT void
 DeleteWindowFromAnySaveSet(WindowPtr pWin)
 {
     int i;
@@ -374,7 +374,7 @@ static Bool		handlerDeleted;
  *  \param pTimeout   DIX doesn't want to know how OS represents time
  *  \param pReadMask  nor how it represents the det of descriptors
  */
-void
+_X_EXPORT void
 BlockHandler(pointer pTimeout, pointer pReadmask)
 {
     int i, j;
@@ -408,7 +408,7 @@ BlockHandler(pointer pTimeout, pointer pReadmask)
  *  \param result    32 bits of undefined result from the wait
  *  \param pReadmask the resulting descriptor mask
  */
-void
+_X_EXPORT void
 WakeupHandler(int result, pointer pReadmask)
 {
     int i, j;
@@ -492,7 +492,7 @@ RemoveBlockAndWakeupHandlers (BlockHandlerProcPtr blockHandler,
 	}
 }
 
-void
+_X_EXPORT void
 InitBlockAndWakeupHandlers (void)
 {
     xfree (handlers);
@@ -509,7 +509,7 @@ InitBlockAndWakeupHandlers (void)
 WorkQueuePtr		workQueue;
 static WorkQueuePtr	*workQueueLast = &workQueue;
 
-void
+_X_EXPORT void
 ProcessWorkQueue(void)
 {
     WorkQueuePtr    q, *p;
@@ -537,7 +537,7 @@ ProcessWorkQueue(void)
     workQueueLast = p;
 }
 
-void
+_X_EXPORT void
 ProcessWorkQueueZombies(void)
 {
     WorkQueuePtr    q, *p;
@@ -653,7 +653,7 @@ ClientWakeup (ClientPtr client)
     }
 }
 
-Bool
+_X_EXPORT Bool
 ClientIsAsleep (ClientPtr client)
 {
     SleepQueuePtr   q;
@@ -869,21 +869,21 @@ DeleteCallback(CallbackListPtr *pcbl, CallbackProcPtr callback, pointer data)
     return _DeleteCallback(pcbl, callback, data);
 }
 
-void 
+_X_EXPORT void 
 CallCallbacks(CallbackListPtr *pcbl, pointer call_data)
 {
     if (!pcbl || !*pcbl) return;
     _CallCallbacks(pcbl, call_data);
 }
 
-void
+_X_EXPORT void
 DeleteCallbackList(CallbackListPtr *pcbl)
 {
     if (!pcbl || !*pcbl) return;
     _DeleteCallbackList(pcbl);
 }
 
-void 
+_X_EXPORT void 
 InitCallbackManager(void)
 {
     int i;