xselinux: Move the extension to extmod instead of being built-in.

Xext/Makefile.am

@@ -76,7 +76,7 @@ endif
 # requires X-ACE extension
 XSELINUX_SRCS = xselinux.c xselinux.h
 if XSELINUX
-BUILTIN_SRCS += $(XSELINUX_SRCS)
+MODULE_SRCS += $(XSELINUX_SRCS)
 endif
 
 # Security extension: multi-level security to protect clients from each other

hw/xfree86/dixmods/extmod/modinit.c

@@ -38,6 +38,15 @@ static MODULESETUPPROTO(extmodSetup);
  * Array describing extensions to be initialized
  */
 static ExtensionModule extensionModules[] = {
+#ifdef XSELINUX
+    {
+	SELinuxExtensionInit,
+	SELINUX_EXTENSION_NAME,
+	NULL,
+	NULL,
+	NULL
+    },
+#endif
 #ifdef SHAPE
     {
 	ShapeExtensionInit,

hw/xfree86/dixmods/extmod/modinit.h

@@ -127,6 +127,7 @@ extern void ShmRegisterFuncs(
 
 #ifdef XSELINUX
 extern void SELinuxExtensionInit(INITARGS);
+#include "xselinux.h"
 #endif
 
 #if 1

mi/miinitext.c

@@ -690,9 +690,6 @@ static ExtensionModule staticExtensions[] = {
 #ifdef XCSECURITY
     { SecurityExtensionInit, SECURITY_EXTENSION_NAME, &noSecurityExtension, NULL, NULL },
 #endif
-#ifdef XSELINUX
-    { SELinuxExtensionInit, SELINUX_EXTENSION_NAME, NULL, NULL, NULL },
-#endif
 #ifdef XPRINT
     { XpExtensionInit, XP_PRINTNAME, NULL, NULL, NULL },
 #endif