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, 17 insertions, 17 deletions

diff --git a/exa/exa.h b/exa/exa.h
index 5982e1ae7..21a0f1abf 100644
--- a/exa/exa.h
+++ b/exa/exa.h
@@ -745,63 +745,63 @@ typedef struct _ExaDriver {
 /** @} */
 
 /* in exa.c */
-ExaDriverPtr
+extern _X_EXPORT ExaDriverPtr
 exaDriverAlloc(void);
 
-Bool
+extern _X_EXPORT Bool
 exaDriverInit(ScreenPtr      pScreen,
               ExaDriverPtr   pScreenInfo);
 
-void
+extern _X_EXPORT void
 exaDriverFini(ScreenPtr      pScreen);
 
-void
+extern _X_EXPORT void
 exaMarkSync(ScreenPtr pScreen);
-void
+extern _X_EXPORT void
 exaWaitSync(ScreenPtr pScreen);
 
-unsigned long
+extern _X_EXPORT unsigned long
 exaGetPixmapOffset(PixmapPtr pPix);
 
-unsigned long
+extern _X_EXPORT unsigned long
 exaGetPixmapPitch(PixmapPtr pPix);
 
-unsigned long
+extern _X_EXPORT unsigned long
 exaGetPixmapSize(PixmapPtr pPix);
 
-void *
+extern _X_EXPORT void *
 exaGetPixmapDriverPrivate(PixmapPtr p);
 
 
 /* in exa_offscreen.c */
-ExaOffscreenArea *
+extern _X_EXPORT ExaOffscreenArea *
 exaOffscreenAlloc(ScreenPtr pScreen, int size, int align,
                   Bool locked,
                   ExaOffscreenSaveProc save,
                   pointer privData);
 
-ExaOffscreenArea *
+extern _X_EXPORT ExaOffscreenArea *
 exaOffscreenFree(ScreenPtr pScreen, ExaOffscreenArea *area);
 
-void
+extern _X_EXPORT void
 ExaOffscreenMarkUsed (PixmapPtr pPixmap);
 
-void
+extern _X_EXPORT void
 exaEnableDisableFBAccess (int index, Bool enable);
 
-Bool
+extern _X_EXPORT Bool
 exaDrawableIsOffscreen (DrawablePtr pDrawable);
 
 /* in exa_migration.c */
-void
+extern _X_EXPORT void
 exaMoveInPixmap (PixmapPtr pPixmap);
 
-void
+extern _X_EXPORT void
 exaMoveOutPixmap (PixmapPtr pPixmap);
 
 
 /* in exa_unaccel.c */
-CARD32
+extern _X_EXPORT CARD32
 exaGetPixmapFirstPixel (PixmapPtr pPixmap);