GLU: fix asst warnings

src/glu/sgi/libnurbs/interface/mystdio.h

@@ -43,7 +43,7 @@
 #define __glumystdio_h_
 
 #ifdef STANDALONE
-inline void _glu_dprintf( char *, ... ) { }
+inline void _glu_dprintf( const char *, ... ) { }
 #endif
 
 #ifdef LIBRARYBUILD
@@ -51,12 +51,12 @@ inline void _glu_dprintf( char *, ... ) { }
 #include <stdio.h>
 #define _glu_dprintf printf
 #else
-inline void _glu_dprintf( char *, ... ) { }
+inline void _glu_dprintf( const char *, ... ) { }
 #endif
 #endif
 
 #ifdef GLBUILD
-inline void _glu_dprintf( char *, ... ) { }
+inline void _glu_dprintf( const char *, ... ) { }
 #endif
 
 #ifndef NULL

src/glu/sgi/libnurbs/internals/backend.cc

@@ -246,7 +246,7 @@ Backend::evalVStrip(int n_left, REAL u_left, REAL* left_val,
  *-------------------------------------------------------------------------
  */
 void
-Backend::bgntmesh( char * )		
+Backend::bgntmesh( const char * )		
 {
 #ifndef NOWIREFRAME
 

src/glu/sgi/libnurbs/internals/backend.h

@@ -65,7 +65,7 @@ public:
     void		surfbbox( long, REAL *, REAL * );
     void		surfgrid( REAL, REAL, long, REAL, REAL, long ); 
     void		surfmesh( long, long, long, long ); 
-    void		bgntmesh( char * );
+    void		bgntmesh( const char * );
     void		endtmesh( void );
     void		swaptmesh( void );
     void		tmeshvert( GridTrimVertex * );

src/glu/sgi/libnurbs/internals/bufpool.cc

@@ -48,7 +48,7 @@
  * Pool - allocate a new pool of buffers
  *-----------------------------------------------------------------------------
  */
-Pool::Pool( int _buffersize, int initpoolsize, char *n )
+Pool::Pool( int _buffersize, int initpoolsize, const char *n )
 {
     if((unsigned)_buffersize < sizeof(Buffer))
         buffersize = sizeof(Buffer);

src/glu/sgi/libnurbs/internals/bufpool.h

@@ -55,7 +55,7 @@ class Buffer {
 
 class Pool {
 public:
-			Pool( int, int, char * );
+			Pool( int, int, const char * );
 			~Pool( void );
     inline void*	new_buffer( void );
     inline void		free_buffer( void * );
@@ -74,7 +74,7 @@ protected:
     int			nextfree;		/* byte offset past next free buffer */
     int			initsize;
     enum Magic { is_allocated = 0xf3a1, is_free = 0xf1a2 };
-    char		*name;			/* name of the pool */
+    const char		*name;			/* name of the pool */
     Magic		magic;			/* marker for valid pool */
 };
 

src/glu/sgi/libnurbs/internals/knotvector.cc

@@ -126,7 +126,7 @@ int Knotvector::validate( void )
     return 0;
 }
 
-void Knotvector::show( char *msg )
+void Knotvector::show( const char *msg )
 {
 #ifndef NDEBUG
     _glu_dprintf( "%s\n", msg );

src/glu/sgi/libnurbs/internals/knotvector.h

@@ -49,7 +49,7 @@ struct Knotvector { /* a knot vector */
 			~Knotvector( void );
     void		init( long, long, long, INREAL * );
     int			validate( void );
-    void 		show( char * );
+    void 		show( const char * );
 
     long		order;		/* order of spline  */
     long		knotcount;	/* number of knots  */

src/glu/sgi/libnurbs/internals/nurbstess.cc

@@ -677,7 +677,7 @@ NurbsTessellator::do_nurbserror( int msg )
 }
 
 int 
-NurbsTessellator::do_check_knots( Knotvector *knots, char *msg )
+NurbsTessellator::do_check_knots( Knotvector *knots, const char *msg )
 {
     int status = knots->validate();
     if( status ) {

src/glu/sgi/libnurbs/internals/nurbstess.h

@@ -112,7 +112,7 @@ protected:
 private:
 
     void		resetObjects( void );
-    int			do_check_knots( Knotvector *, char * );
+    int			do_check_knots( Knotvector *, const char * );
     void		do_nurbserror( int );
     void		do_bgncurve( O_curve * );
     void		do_endcurve( void );