all: support for unicode version of wxwidgets for win32, needs testing for other platform

configure.ac

@@ -3881,6 +3881,12 @@ then
     fi
     VLC_ADD_LDFLAGS([wxwidgets],[`${WX_CONFIG} --libs`])
     VLC_ADD_CXXFLAGS([wxwidgets],[`${WX_CONFIG} --cxxflags`])
+    if ${WX_CONFIG} --unicode
+    then 
+      # wxwidgets should provide the following flags but does not
+      # the following is required to compile for win32
+      VLC_ADD_CXXFLAGS([wxwidgets],[-D_UNICODE -DUNICODE])
+    fi
     if test "$have_libcdio" = "yes"
     then 
       VLC_ADD_LDFLAGS([wxwidgets],[$LIBCDIO_LIBS])

modules/gui/wxwidgets/open.cpp

@@ -718,7 +718,7 @@ wxPanel *OpenDialog::DiscPanel( wxWindow* parent )
     for( char drive_letter = 'A'; drive_letter <= 'Z'; ++drive_letter )
     {
         char drive_name[3] = {drive_letter, ':', 0};
-        UINT type = GetDriveType( drive_name );
+        UINT type = GetDriveTypeA( drive_name );
         if( type == DRIVE_CDROM )
         {
             psz_default_device[0] = drive_letter;