Remove wxPM, wxWidgets port to OS/2.

This port is not used and is not being worked on, so remove it to reduce the
amount of the code which needs to be updated for every global change.

Also remove tests for VisualAge compiler which isn't used since ages.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76533 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/filefn.h

@@ -26,19 +26,7 @@
     #include <sys/stat.h>
 #endif
 
-#ifdef __OS2__
-// need to check for __OS2__ first since currently both
-// __OS2__ and __UNIX__ are defined.
-    #include <process.h>
-    #include "wx/os2/private.h"
-    #ifdef __WATCOMC__
-        #include <direct.h>
-    #endif
-    #include <io.h>
-    #ifdef __EMX__
-        #include <unistd.h>
-    #endif
-#elif defined(__UNIX__)
+#if defined(__UNIX__)
     #include <unistd.h>
     #include <dirent.h>
 #endif
@@ -185,7 +173,7 @@ enum wxPosixPermissions
     #define   wxCRT_RmDir      _wrmdir
     #define   wxCRT_Stat       _wstat
     #define   wxStructStat struct _stat
-#elif (defined(__WINDOWS__) || defined(__OS2__)) && \
+#elif defined(__WINDOWS__) && \
       ( \
         defined(__VISUALC__) || \
         defined(__MINGW64__) || \
@@ -343,12 +331,7 @@ enum wxPosixPermissions
             #define   wxCRT_StatA       wxPOSIX_IDENT(stati64)
         #endif
     #else
-        // Unfortunately Watcom is not consistent
-        #if defined(__OS2__) && defined(__WATCOMC__)
-            #define   wxCRT_StatA       _stat
-        #else
-            #define   wxCRT_StatA       wxPOSIX_IDENT(stat)
-        #endif
+        #define   wxCRT_StatA       wxPOSIX_IDENT(stat)
     #endif
 
     // then wide char ones
@@ -522,8 +505,7 @@ inline int wxLstat(const wxString& path, wxStructStat *buf)
     { return wxCRT_Lstat(path.fn_str(), buf); }
 inline int wxRmDir(const wxString& path)
     { return wxCRT_RmDir(path.fn_str()); }
-#if (defined(__WINDOWS__) && !defined(__CYGWIN__)) \
-        || (defined(__OS2__) && defined(__WATCOMC__))
+#if (defined(__WINDOWS__) && !defined(__CYGWIN__))
 inline int wxMkDir(const wxString& path, mode_t WXUNUSED(mode) = 0)
     { return wxCRT_MkDir(path.fn_str()); }
 #else
@@ -538,15 +520,7 @@ inline int wxMkDir(const wxString& path, mode_t mode)
     #define wxO_BINARY 0
 #endif
 
-#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
-//
-// VisualAge C++ V4.0 cannot have any external linkage const decs
-// in headers included by more than one primary source
-//
-extern const int wxInvalidOffset;
-#else
 const int wxInvalidOffset = -1;
-#endif
 
 // ----------------------------------------------------------------------------
 // functions
@@ -686,7 +660,7 @@ WXDLLIMPEXP_BASE bool wxIsExecutable(const wxString &path);
 #define wxPATH_SEP_MAC        wxT(";")
 
 // platform independent versions
-#if defined(__UNIX__) && !defined(__OS2__)
+#if defined(__UNIX__)
   // CYGWIN also uses UNIX settings
   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_UNIX
   #define wxPATH_SEP          wxPATH_SEP_UNIX
@@ -700,7 +674,7 @@ WXDLLIMPEXP_BASE bool wxIsExecutable(const wxString &path);
 
 // this is useful for wxString::IsSameAs(): to compare two file names use
 // filename1.IsSameAs(filename2, wxARE_FILENAMES_CASE_SENSITIVE)
-#if defined(__UNIX__) && !defined(__DARWIN__) && !defined(__OS2__)
+#if defined(__UNIX__) && !defined(__DARWIN__)
   #define wxARE_FILENAMES_CASE_SENSITIVE  true
 #else   // Windows, Mac OS and OS/2
   #define wxARE_FILENAMES_CASE_SENSITIVE  false
@@ -710,7 +684,7 @@ WXDLLIMPEXP_BASE bool wxIsExecutable(const wxString &path);
 inline bool wxIsPathSeparator(wxChar c)
 {
     // under DOS/Windows we should understand both Unix and DOS file separators
-#if ( defined(__UNIX__) && !defined(__OS2__) )|| defined(__MAC__)
+#if defined(__UNIX__) || defined(__MAC__)
     return c == wxFILE_SEP_PATH;
 #else
     return c == wxFILE_SEP_PATH_DOS || c == wxFILE_SEP_PATH_UNIX;