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, 16 insertions, 16 deletions

diff --git a/include/colormap.h b/include/colormap.h
index 8513c0a09..a3467c93f 100644
--- a/include/colormap.h
+++ b/include/colormap.h
@@ -76,7 +76,7 @@ typedef struct _CMEntry *EntryPtr;
 /* moved to screenint.h: typedef struct _ColormapRec *ColormapPtr */
 typedef struct _colorResource *colorResourcePtr;
 
-extern int CreateColormap(
+extern _X_EXPORT int CreateColormap(
     Colormap /*mid*/,
     ScreenPtr /*pScreen*/,
     VisualPtr /*pVisual*/,
@@ -84,24 +84,24 @@ extern int CreateColormap(
     int /*alloc*/,
     int /*client*/);
 
-extern int FreeColormap(
+extern _X_EXPORT int FreeColormap(
     pointer /*pmap*/,
     XID /*mid*/);
 
-extern int TellLostMap(
+extern _X_EXPORT int TellLostMap(
     WindowPtr /*pwin*/,
     pointer /* Colormap *pmid */);
 
-extern int TellGainedMap(
+extern _X_EXPORT int TellGainedMap(
     WindowPtr /*pwin*/,
     pointer /* Colormap *pmid */);
 
-extern int CopyColormapAndFree(
+extern _X_EXPORT int CopyColormapAndFree(
     Colormap /*mid*/,
     ColormapPtr /*pSrc*/,
     int /*client*/);
 
-extern int AllocColor(
+extern _X_EXPORT int AllocColor(
     ColormapPtr /*pmap*/,
     unsigned short* /*pred*/,
     unsigned short* /*pgreen*/,
@@ -109,11 +109,11 @@ extern int AllocColor(
     Pixel* /*pPix*/,
     int /*client*/);
 
-extern void FakeAllocColor(
+extern _X_EXPORT void FakeAllocColor(
     ColormapPtr /*pmap*/,
     xColorItem * /*item*/);
 
-extern void FakeFreeColor(
+extern _X_EXPORT void FakeFreeColor(
     ColormapPtr /*pmap*/,
     Pixel /*pixel*/);
 
@@ -121,7 +121,7 @@ typedef int (*ColorCompareProcPtr)(
     EntryPtr /*pent*/,
     xrgb * /*prgb*/);
 
-extern int FindColor(
+extern _X_EXPORT int FindColor(
     ColormapPtr /*pmap*/,
     EntryPtr /*pentFirst*/,
     int /*size*/,
@@ -131,17 +131,17 @@ extern int FindColor(
     int /*client*/,
     ColorCompareProcPtr /*comp*/);
 
-extern int QueryColors(
+extern _X_EXPORT int QueryColors(
     ColormapPtr /*pmap*/,
     int /*count*/,
     Pixel* /*ppixIn*/,
     xrgb* /*prgbList*/);
 
-extern int FreeClientPixels(
+extern _X_EXPORT int FreeClientPixels(
     pointer /*pcr*/,
     XID /*fakeid*/);
 
-extern int AllocColorCells(
+extern _X_EXPORT int AllocColorCells(
     int /*client*/,
     ColormapPtr /*pmap*/,
     int /*colors*/,
@@ -150,7 +150,7 @@ extern int AllocColorCells(
     Pixel* /*ppix*/,
     Pixel* /*masks*/);
 
-extern int AllocColorPlanes(
+extern _X_EXPORT int AllocColorPlanes(
     int /*client*/,
     ColormapPtr /*pmap*/,
     int /*colors*/,
@@ -163,19 +163,19 @@ extern int AllocColorPlanes(
     Pixel* /*pgmask*/,
     Pixel* /*pbmask*/);
 
-extern int FreeColors(
+extern _X_EXPORT int FreeColors(
     ColormapPtr /*pmap*/,
     int /*client*/,
     int /*count*/,
     Pixel* /*pixels*/,
     Pixel /*mask*/);
 
-extern int StoreColors(
+extern _X_EXPORT int StoreColors(
     ColormapPtr /*pmap*/,
     int /*count*/,
     xColorItem* /*defs*/);
 
-extern int IsMapInstalled(
+extern _X_EXPORT int IsMapInstalled(
     Colormap /*map*/,
     WindowPtr /*pWin*/);