do VMS-specific X symbols redefinitions only once in wx/platform.h instead of doing it in individual files

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@50982 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/intl.cpp

@@ -18,12 +18,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __EMX__
-// The following define is needed by Innotek's libc to
-// make the definition of struct localeconv available.
-#define __INTERNAL_DEFS
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -31,6 +25,12 @@
     #pragma hdrstop
 #endif
 
+#ifdef __EMX__
+// The following define is needed by Innotek's libc to
+// make the definition of struct localeconv available.
+#define __INTERNAL_DEFS
+#endif
+
 #if wxUSE_INTL
 
 #ifndef WX_PRECOMP