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, 5 insertions, 5 deletions

diff --git a/dix/pixmap.c b/dix/pixmap.c
index 7ab868113..d72a3d038 100644
--- a/dix/pixmap.c
+++ b/dix/pixmap.c
@@ -49,7 +49,7 @@ from The Open Group.
 
 
 /* callable by ddx */
-_X_EXPORT PixmapPtr
+PixmapPtr
 GetScratchPixmapHeader(ScreenPtr pScreen, int width, int height, int depth, 
                        int bitsPerPixel, int devKind, pointer pPixData)
 {
@@ -72,7 +72,7 @@ GetScratchPixmapHeader(ScreenPtr pScreen, int width, int height, int depth,
 
 
 /* callable by ddx */
-_X_EXPORT void
+void
 FreeScratchPixmapHeader(PixmapPtr pPixmap)
 {
     if (pPixmap)
@@ -88,7 +88,7 @@ FreeScratchPixmapHeader(PixmapPtr pPixmap)
 }
 
 
-_X_EXPORT Bool
+Bool
 CreateScratchPixmapsForScreen(int scrnum)
 {
     /* let it be created on first use */
@@ -97,7 +97,7 @@ CreateScratchPixmapsForScreen(int scrnum)
 }
 
 
-_X_EXPORT void
+void
 FreeScratchPixmapsForScreen(int scrnum)
 {
     FreeScratchPixmapHeader(screenInfo.screens[scrnum]->pScratchPixmap);
@@ -105,7 +105,7 @@ FreeScratchPixmapsForScreen(int scrnum)
 
 
 /* callable by ddx */
-_X_EXPORT PixmapPtr
+PixmapPtr
 AllocatePixmap(ScreenPtr pScreen, int pixDataSize)
 {
     PixmapPtr pPixmap;