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, 25 insertions, 25 deletions

diff --git a/include/opaque.h b/include/opaque.h
index 07a0715ef..b3c7c70d6 100644
--- a/include/opaque.h
+++ b/include/opaque.h
@@ -33,46 +33,46 @@ from The Open Group.
 
 #include "globals.h"
 
-extern char *defaultTextFont;
-extern char *defaultCursorFont;
-extern int MaxClients;
-extern volatile char isItTimeToYield;
-extern volatile char dispatchException;
+extern _X_EXPORT char *defaultTextFont;
+extern _X_EXPORT char *defaultCursorFont;
+extern _X_EXPORT int MaxClients;
+extern _X_EXPORT volatile char isItTimeToYield;
+extern _X_EXPORT volatile char dispatchException;
 
 /* bit values for dispatchException */
 #define DE_RESET     1
 #define DE_TERMINATE 2
 #define DE_PRIORITYCHANGE 4  /* set when a client's priority changes */
 
-extern CARD32 TimeOutValue;
-extern int ScreenSaverBlanking;
-extern int ScreenSaverAllowExposures;
-extern int defaultScreenSaverBlanking;
-extern int defaultScreenSaverAllowExposures;
-extern char *display;
-
-extern int defaultBackingStore;
-extern Bool disableBackingStore;
-extern Bool enableBackingStore;
-extern Bool PartialNetwork;
+extern _X_EXPORT CARD32 TimeOutValue;
+extern _X_EXPORT int ScreenSaverBlanking;
+extern _X_EXPORT int ScreenSaverAllowExposures;
+extern _X_EXPORT int defaultScreenSaverBlanking;
+extern _X_EXPORT int defaultScreenSaverAllowExposures;
+extern _X_EXPORT char *display;
+
+extern _X_EXPORT int defaultBackingStore;
+extern _X_EXPORT Bool disableBackingStore;
+extern _X_EXPORT Bool enableBackingStore;
+extern _X_EXPORT Bool PartialNetwork;
 #ifndef NOLOGOHACK
-extern int logoScreenSaver;
+extern _X_EXPORT int logoScreenSaver;
 #endif
 #ifdef RLIMIT_DATA
-extern int limitDataSpace;
+extern _X_EXPORT int limitDataSpace;
 #endif
 #ifdef RLIMIT_STACK
-extern int limitStackSpace;
+extern _X_EXPORT int limitStackSpace;
 #endif
 #ifdef RLIMIT_NOFILE
-extern int limitNoFile;
+extern _X_EXPORT int limitNoFile;
 #endif
-extern Bool defeatAccessControl;
-extern long maxBigRequestSize;
-extern Bool party_like_its_1989;
-extern Bool whiteRoot;
+extern _X_EXPORT Bool defeatAccessControl;
+extern _X_EXPORT long maxBigRequestSize;
+extern _X_EXPORT Bool party_like_its_1989;
+extern _X_EXPORT Bool whiteRoot;
 
-extern Bool CoreDump;
+extern _X_EXPORT Bool CoreDump;
 
 
 #endif /* OPAQUE_H */