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, 8 insertions, 8 deletions

diff --git a/dix/registry.c b/dix/registry.c
index a96ef777d..a519cff6b 100644
--- a/dix/registry.c
+++ b/dix/registry.c
@@ -114,7 +114,7 @@ RegisterErrorName(unsigned error, char *name) {
     errors[error] = name;
 }
 
-_X_EXPORT void
+void
 RegisterExtensionNames(ExtensionEntry *extEntry)
 {
     char buf[256], *lineobj, *ptr;
@@ -196,7 +196,7 @@ RegisterExtensionNames(ExtensionEntry *extEntry)
  * Registration functions
  */
 
-_X_EXPORT void
+void
 RegisterResourceName(RESTYPE resource, char *name)
 {
     resource &= TypeMask;
@@ -214,7 +214,7 @@ RegisterResourceName(RESTYPE resource, char *name)
  * Lookup functions
  */
 
-_X_EXPORT const char *
+const char *
 LookupRequestName(int major, int minor)
 {
     if (major >= nmajor)
@@ -225,7 +225,7 @@ LookupRequestName(int major, int minor)
     return requests[major][minor] ? requests[major][minor] : XREGISTRY_UNKNOWN;
 }
 
-_X_EXPORT const char *
+const char *
 LookupMajorName(int major)
 {
     if (major < 128) {
@@ -244,7 +244,7 @@ LookupMajorName(int major)
     }
 }
 
-_X_EXPORT const char *
+const char *
 LookupEventName(int event)
 {
     event &= 127;
@@ -254,7 +254,7 @@ LookupEventName(int event)
     return events[event] ? events[event] : XREGISTRY_UNKNOWN;
 }
 
-_X_EXPORT const char *
+const char *
 LookupErrorName(int error)
 {
     if (error >= nerror)
@@ -263,7 +263,7 @@ LookupErrorName(int error)
     return errors[error] ? errors[error] : XREGISTRY_UNKNOWN;
 }
 
-_X_EXPORT const char *
+const char *
 LookupResourceName(RESTYPE resource)
 {
     resource &= TypeMask;
@@ -276,7 +276,7 @@ LookupResourceName(RESTYPE resource)
 /*
  * Setup and teardown
  */
-_X_EXPORT void
+void
 dixResetRegistry(void)
 {
     ExtensionEntry extEntry;