Rework symbol visibility for easier maintenance

  Save in a few special cases, _X_EXPORT should not be used in C source
files. Instead, it should be used in headers, and the proper C source
include that header. Some special cases are symbols that need to be
shared between modules, but not expected to be used by external drivers,
and symbols that are accessible via LoaderSymbol/dlopen.

  This patch also adds conditionally some new sdk header files, depending
on extensions enabled. These files were added to match pattern for
other extensions/modules, that is, have the headers "deciding" symbol
visibility in the sdk. These headers are:
o Xext/panoramiXsrv.h, Xext/panoramiX.h
o fbpict.h (unconditionally)
o vidmodeproc.h
o mioverlay.h (unconditionally, used only by xaa)
o xfixes.h (unconditionally, symbols required by dri2)

  LoaderSymbol and similar functions now don't have different prototypes,
in loaderProcs.h and xf86Module.h, so that both headers can be included,
without the need of defining IN_LOADER.

  xf86NewInputDevice() device prototype readded to xf86Xinput.h, but
not exported (and with a comment about it).

1 files changed, 28 insertions, 28 deletions

diff --git a/miext/shadow/shadow.h b/miext/shadow/shadow.h
index ee99fe61f..ef85c0bb9 100644
--- a/miext/shadow/shadow.h
+++ b/miext/shadow/shadow.h
@@ -74,17 +74,17 @@ typedef struct _shadowBuf {
 #define SHADOW_REFLECT_Y    32
 #define SHADOW_REFLECT_ALL  (SHADOW_REFLECT_X|SHADOW_REFLECT_Y)
 
-extern DevPrivateKey shadowScrPrivateKey;
+extern _X_EXPORT DevPrivateKey shadowScrPrivateKey;
 
 #define shadowGetBuf(pScr) ((shadowBufPtr) \
     dixLookupPrivate(&(pScr)->devPrivates, shadowScrPrivateKey))
 #define shadowBuf(pScr)            shadowBufPtr pBuf = shadowGetBuf(pScr)
 #define shadowDamage(pBuf)  DamageRegion(pBuf->pDamage)    
 
-Bool
+extern _X_EXPORT Bool
 shadowSetup (ScreenPtr pScreen);
 
-Bool
+extern _X_EXPORT Bool
 shadowAdd (ScreenPtr	    pScreen,
 	   PixmapPtr	    pPixmap,
 	   ShadowUpdateProc update,
@@ -92,92 +92,92 @@ shadowAdd (ScreenPtr	    pScreen,
 	   int		    randr,
 	   void		    *closure);
 
-void
+extern _X_EXPORT void
 shadowRemove (ScreenPtr pScreen, PixmapPtr pPixmap);
 
-Bool
+extern _X_EXPORT Bool
 shadowInit (ScreenPtr pScreen, ShadowUpdateProc update, ShadowWindowProc window);
 
-void *
+extern _X_EXPORT void *
 shadowAlloc (int width, int height, int bpp);
 
-void
+extern _X_EXPORT void
 shadowUpdatePacked (ScreenPtr	    pScreen,
 		    shadowBufPtr    pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdatePlanar4 (ScreenPtr	    pScreen,
 		     shadowBufPtr   pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdatePlanar4x8 (ScreenPtr    pScreen,
 		       shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotatePacked (ScreenPtr    pScreen,
 			  shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate8_90 (ScreenPtr    pScreen,
 			shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate16_90 (ScreenPtr    pScreen,
 			 shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate16_90YX (ScreenPtr    pScreen,
 			   shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate32_90 (ScreenPtr    pScreen,
 			 shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate8_180 (ScreenPtr    pScreen,
 			 shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate16_180 (ScreenPtr    pScreen,
 			  shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate32_180 (ScreenPtr    pScreen,
 			  shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate8_270 (ScreenPtr    pScreen,
 			 shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate16_270 (ScreenPtr    pScreen,
 			  shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate16_270YX (ScreenPtr    pScreen,
 			    shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate32_270 (ScreenPtr    pScreen,
 			  shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate8 (ScreenPtr    pScreen,
 		     shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate16 (ScreenPtr    pScreen,
 		      shadowBufPtr pBuf);
 
-void
+extern _X_EXPORT void
 shadowUpdateRotate32 (ScreenPtr    pScreen,
 		      shadowBufPtr pBuf);
 
 typedef void (* shadowUpdateProc)(ScreenPtr, shadowBufPtr);
 
-shadowUpdateProc shadowUpdatePackedWeak(void);
-shadowUpdateProc shadowUpdatePlanar4Weak(void);
-shadowUpdateProc shadowUpdatePlanar4x8Weak(void);
-shadowUpdateProc shadowUpdateRotatePackedWeak(void);
+extern _X_EXPORT shadowUpdateProc shadowUpdatePackedWeak(void);
+extern _X_EXPORT shadowUpdateProc shadowUpdatePlanar4Weak(void);
+extern _X_EXPORT shadowUpdateProc shadowUpdatePlanar4x8Weak(void);
+extern _X_EXPORT shadowUpdateProc shadowUpdateRotatePackedWeak(void);
 
 #endif /* _SHADOW_H_ */