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, 9 insertions, 9 deletions

diff --git a/hw/xfree86/int10/stub.c b/hw/xfree86/int10/stub.c
index 4d9fe520a..58b65782c 100644
--- a/hw/xfree86/int10/stub.c
+++ b/hw/xfree86/int10/stub.c
@@ -13,56 +13,56 @@
 #define _INT10_PRIVATE
 #include "xf86int10.h"
 
-_X_EXPORT xf86Int10InfoPtr
+xf86Int10InfoPtr
 xf86InitInt10(int entityIndex)
 {
     return xf86ExtendedInitInt10(entityIndex, 0);
 }
 
-_X_EXPORT xf86Int10InfoPtr
+xf86Int10InfoPtr
 xf86ExtendedInitInt10(int entityIndex, int Flags)
 {
     return NULL;
 }
 
-_X_EXPORT Bool
+Bool
 MapCurrentInt10(xf86Int10InfoPtr pInt)
 {
     return FALSE;
 }
 
-_X_EXPORT void
+void
 xf86FreeInt10(xf86Int10InfoPtr pInt)
 {
     return;
 }
 
-_X_EXPORT void *
+void *
 xf86Int10AllocPages(xf86Int10InfoPtr pInt,int num, int *off)
 {
     *off = 0;
     return NULL;
 }
 
-_X_EXPORT void
+void
 xf86Int10FreePages(xf86Int10InfoPtr pInt, void *pbase, int num)
 {
     return;
 }
 
-_X_EXPORT Bool
+Bool
 xf86Int10ExecSetup(xf86Int10InfoPtr pInt)
 {
     return FALSE;
 }
 
-_X_EXPORT void
+void
 xf86ExecX86int10(xf86Int10InfoPtr pInt)
 {
     return;
 }
 
-_X_EXPORT pointer
+pointer
 xf86int10Addr(xf86Int10InfoPtr pInt, CARD32 addr)
 {
     return 0;