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, 11 insertions, 11 deletions

diff --git a/fb/fboverlay.h b/fb/fboverlay.h
index f3db0bb7d..ed355afad 100644
--- a/fb/fboverlay.h
+++ b/fb/fboverlay.h
@@ -27,7 +27,7 @@
 
 #include "privates.h"
 
-extern DevPrivateKey fbOverlayGetScreenPrivateKey(void);
+extern _X_EXPORT DevPrivateKey fbOverlayGetScreenPrivateKey(void);
 
 #ifndef FB_OVERLAY_MAX
 #define FB_OVERLAY_MAX	2
@@ -59,40 +59,40 @@ typedef struct _fbOverlayScrPriv {
 
 #define fbOverlayGetScrPriv(s) \
     dixLookupPrivate(&(s)->devPrivates, fbOverlayGetScreenPrivateKey())
-Bool
+extern _X_EXPORT Bool
 fbOverlayCreateWindow(WindowPtr pWin);
 
-Bool
+extern _X_EXPORT Bool
 fbOverlayCloseScreen (int iScreen, ScreenPtr pScreen);
 
-int
+extern _X_EXPORT int
 fbOverlayWindowLayer(WindowPtr pWin);
 
-Bool
+extern _X_EXPORT Bool
 fbOverlayCreateScreenResources(ScreenPtr pScreen);
 
-void
+extern _X_EXPORT void
 fbOverlayPaintKey (DrawablePtr	pDrawable,
 		   RegionPtr	pRegion,
 		   CARD32	pixel,
 		   int		layer);
-void
+extern _X_EXPORT void
 fbOverlayUpdateLayerRegion (ScreenPtr	pScreen,
 			    int		layer,
 			    RegionPtr	prgn);
 
     
-void
+extern _X_EXPORT void
 fbOverlayCopyWindow(WindowPtr	pWin,
 		    DDXPointRec	ptOldOrg,
 		    RegionPtr	prgnSrc);
     
-void
+extern _X_EXPORT void
 fbOverlayWindowExposures (WindowPtr	pWin,
 			  RegionPtr	prgn,
 			  RegionPtr	other_exposed);
 
-Bool
+extern _X_EXPORT Bool
 fbOverlaySetupScreen(ScreenPtr	pScreen,
 		     pointer	pbits1,
 		     pointer	pbits2,
@@ -105,7 +105,7 @@ fbOverlaySetupScreen(ScreenPtr	pScreen,
 		     int	bpp1,
 		     int	bpp2);
 
-Bool
+extern _X_EXPORT Bool
 fbOverlayFinishScreenInit(ScreenPtr	pScreen,
 			  pointer	pbits1,
 			  pointer	pbits2,