xclipboard.c: In function ‘NewCurrentClip’:
xclipboard.c:384:29: warning: passing argument 1 of ‘NewCurrentClipContents’
 discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
  384 |     NewCurrentClipContents ("", 0);
      |                             ^~
xclipboard.c:77:44: note: expected ‘char *’ but argument is of type
 ‘const char *’
   77 | static void NewCurrentClipContents ( char *data, int len );
      |                                      ~~~~~~^~~~
xclipboard.c: In function ‘EraseTextWidget’:
xclipboard.c:420:15: warning: assignment discards ‘const’ qualifier from
 pointer target type [-Wdiscarded-qualifiers]
  420 |     block.ptr = "";
      |               ^

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <!4>