dtfile: Add missing prototypes

Add missing prototypes and header files to the dtfile
code in order to move closer towards 64-bit compatibility.

Extract the following functions from Motif internal headers:

_XmGetWidgetExtData
_XmRecordEvent
_XmStringUngenerate
_XmTextFieldSetDestination
_XmGetActiveTopLevelMenu

Extract manually prototypes of the obsolete Motif interface:
_XmHighlightBorder
_XmUnhighlightBorder

Remove XmPrivate.h if extractprototype.awk fails

Make the following header files available via -I:
	codelibs/boolean.h
	codelibs/pathutils.h
	codelibs/shellutils.h
and remove shellutils.h from dtwm directory.

cde/programs/dtfile/dtcopy/copydialog.c

@@ -65,6 +65,7 @@
 #include <Xm/Form.h>
 #include <Xm/Frame.h>
 #include <Xm/BulletinB.h>
+#include <Xm/MessageB.h>
 #include <Xm/Text.h>
 #include <Xm/TextF.h>
 #include <Xm/ScrolledW.h>
@@ -81,6 +82,11 @@
 #define TOP_SPACING  (VERTICAL_SPACING + 5)
 #define INDENTED_SPACING (HORIZONTAL_SPACING + 5)
 
+/* Cannot put into sharedFuncs.h due to conflict with FileManip.c */
+extern int       Check(
+                                    register char *spth,
+                                    register char *dpth,
+                                    int mode);
 
 /*--------------------------------------------------------------------
  * Global variables

cde/programs/dtfile/dtcopy/main_dtcopy.c

@@ -61,6 +61,8 @@
 #include <X11/Intrinsic.h>
 #include <X11/StringDefs.h>
 #include <Xm/Xm.h>
+#include <Xm/Text.h>
+#include <Xm/TextF.h>
 
 /* #Include <X11/Xmu/Editres.h> */      /* for editres debugging tool */
 
@@ -758,7 +760,7 @@ InitNlsMessage(void)
  * Main
  *------------------------------------------------------------------*/
 
-void
+int
 main(int argc, char *argv[])
 {
   char msg[1024];

cde/programs/dtfile/dtcopy/overwrtdialog.c

@@ -68,7 +68,9 @@
 #include <Xm/TextF.h>
 #include <Xm/ToggleB.h>
 #include <Xm/MessageB.h>
+#include <Xm/RowColumn.h>
 #include <Xm/Separator.h>
+#include <Dt/SharedProcs.h>
 
 #include "dtcopy.h"
 #include "sharedFuncs.h"

cde/programs/dtfile/dtcopy/sharedFuncs.c

@@ -96,6 +96,7 @@
 
 #include <Dt/Connect.h>
 #include <Dt/DtNlUtils.h>
+#include <Dt/SharedProcs.h>
 
 #include "sharedFuncs.h"
 #include "dtcopy.h"
@@ -645,7 +646,7 @@ _DtCopyPathFromInput(input_string, current_dir)
     else if (!path)
     {
         XtFree(tmp_path);
-        return;
+        return NULL;
     }
 
     /* Resolve '.' or '..' -- input is overwritten, output may be NULL! */

cde/programs/dtfile/dtcopy/sharedFuncs.h

@@ -96,6 +96,6 @@ extern void      TimeoutHandler(
                                     XtPointer client_data,
                                     XtIntervalId *id);
 
-
+extern char *    get_path(char *path);
 
 #endif /* SHAREDFUNCS_H */