Fix to compile warnings.

* discarded-qualifiers warnings.
* Function definitions, the .h doesn't match the .c.
* Added some include to ensure the .c has function definition.

cde/lib/DtHelp/Format.c

@@ -89,6 +89,7 @@ extern int errno;
 #include "FormatCCDFI.h"
 #include "FormatSDLI.h"
 #include "StringFuncsI.h"
+#include "FormatI.h"
 
 
 #ifdef NLS16

cde/lib/DtHelp/FormatI.h

@@ -76,10 +76,10 @@ extern	int		 _DtFormatProcessString (
 				int       seg_type,
 				char	**font_attr );
 extern	int		 _DtHelpFormatToc (
-				XtPointer	  client_data,
+				DtHelpDispAreaStruct *client_data,
 				_DtHelpVolumeHdl      volume,
 				char                 *id_string,
-				char		*ret_id,
+				char                **ret_id,
 				XtPointer            *ret_handle);
 extern	int		 _DtHelpFormatTopic (
 				XtPointer	  client_data,

cde/lib/DtHelp/GlobSearch.c

@@ -91,6 +91,7 @@
  */
 #include "bufioI.h"
 #include "Access.h"
+#include "DisplayAreaP.h"
 #include "AccessI.h"
 #include "StringFuncsI.h"
 #include "DisplayAreaI.h"

cde/lib/DtHelp/Graphics.c

@@ -2748,7 +2748,7 @@ void _DtGrRegisterConverter(
  *****************************************************************************/
 int _DtGrOpenFile(
     _DtGrStream *stream,
-    const char  *path)
+    char  *path)
 {
     char *fname = NULL;
 

cde/lib/DtHelp/GraphicsP.h

@@ -72,7 +72,7 @@ typedef struct
 /* Open a file stream */
 int _DtGrOpenFile(
     _DtGrStream *stream,
-    const char  *path
+    char        *path
 );
 
 /* Open a buffer stream */

cde/lib/DtHelp/History.c

@@ -71,6 +71,7 @@
 
 #include <Dt/Help.h>
 #include "DisplayAreaI.h"
+#include "DisplayAreaP.h"
 #include "StringFuncsI.h"
 #include "HelposI.h"
 #include "HistoryI.h"

cde/lib/DtHelp/Print.c

@@ -74,6 +74,7 @@
  * private includes
  */
 #include "DisplayAreaI.h"
+#include "DisplayAreaP.h"
 
 #include "bufioI.h"
 #include "Access.h"

cde/programs/dtprintinfo/libUI/MotifUI/Debug.c

@@ -33,7 +33,7 @@
 #define INT_MESSAGE5    "    The connection was probably broken by a server shudown or KillClient.\r\n"
 
 static int PrintXError(Display *dpy, XErrorEvent *event, FILE *fp);
-static  char *SysErrorMsg(int n);
+static  const char *SysErrorMsg(int n);
 
 /* Error Handlers */
 static  int XIOError(Display *dpy);
@@ -100,7 +100,7 @@ XIOError(
  *   FUNCTION:
  *   RETURNS:
  */
-static char *
+static const char *
 SysErrorMsg(
    int n
    )
@@ -109,7 +109,7 @@ SysErrorMsg(
     extern char *sys_errlist[];
     extern int sys_nerr;
 #endif
-    char *s = ((n >= 0 && n < sys_nerr) ? sys_errlist[n] : "unknown error");
+    const char *s = ((n >= 0 && n < sys_nerr) ? sys_errlist[n] : "unknown error");
     return (s ? s : "no such error");
 }