a few more warning squelches

panda/src/express/patchfile.cxx

@@ -1202,7 +1202,7 @@ read_tar(TarDef &tar, istream &stream) {
   stream.seekg(0, ios::beg);
   nassertr(_tar_istream == NULL, false);
   _tar_istream = &stream;
-  if (tar_open(&tfile, "dummy", &tt, O_RDONLY, 0, 0) != 0) {
+  if (tar_open(&tfile, (char *)"dummy", &tt, O_RDONLY, 0, 0) != 0) {
     _tar_istream = NULL;
     return false;
   }

panda/src/express/zStreamBuf.cxx

@@ -90,7 +90,7 @@ open_read(istream *source, bool owns_source) {
   _z_source.zfree = (free_func)&do_zlib_free;
 #endif
   _z_source.opaque = Z_NULL;
-  _z_source.msg = "no error message";
+  _z_source.msg = (char *)"no error message";
 
   int result = inflateInit(&_z_source);
   if (result < 0) {
@@ -141,7 +141,7 @@ open_write(ostream *dest, bool owns_dest, int compression_level) {
   _z_dest.zfree = (free_func)&do_zlib_free;
 #endif
   _z_dest.opaque = Z_NULL;
-  _z_dest.msg = "no error message";
+  _z_dest.msg = (char *)"no error message";
 
   int result = deflateInit(&_z_dest, compression_level);
   if (result < 0) {

panda/src/pgraph/stencilAttrib.cxx

@@ -23,7 +23,7 @@
 TypeHandle StencilAttrib::_type_handle;
 int StencilAttrib::_attrib_slot;
 
-char *StencilAttrib::
+const char *StencilAttrib::
 stencil_render_state_name_array [StencilAttrib::SRS_total] =
 {
   "SRS_front_enable",

panda/src/pgraph/stencilAttrib.h

@@ -153,7 +153,7 @@ PUBLISHED:
   INLINE unsigned int get_render_state (unsigned int render_state_identifier) const;
 
 public:
-  static char *stencil_render_state_name_array [SRS_total];
+  static const char *stencil_render_state_name_array [SRS_total];
   
   virtual void output(ostream &out) const;
 

panda/src/pnmimage/pnmbitio.cxx

@@ -46,7 +46,7 @@ struct bitstream
  */
 
 EXPCL_PANDA_PNMIMAGE struct bitstream *
-pm_bitinit(istream *f, char *mode)
+pm_bitinit(istream *f, const char *mode)
 {
         struct bitstream *ans = (struct bitstream *)0;
 
@@ -66,7 +66,7 @@ pm_bitinit(istream *f, char *mode)
 }
 
 EXPCL_PANDA_PNMIMAGE struct bitstream *
-pm_bitinit(ostream *f, char *mode)
+pm_bitinit(ostream *f, const char *mode)
 {
         struct bitstream *ans = (struct bitstream *)0;
 

panda/src/pnmimage/pnmbitio.h

@@ -30,8 +30,8 @@ typedef struct bitstream *BITSTREAM;
  * Returns 0 on error.
  */
 
-extern EXPCL_PANDA_PNMIMAGE BITSTREAM pm_bitinit(istream *f, char *mode);
-extern EXPCL_PANDA_PNMIMAGE BITSTREAM pm_bitinit(ostream *f, char *mode);
+extern EXPCL_PANDA_PNMIMAGE BITSTREAM pm_bitinit(istream *f, const char *mode);
+extern EXPCL_PANDA_PNMIMAGE BITSTREAM pm_bitinit(ostream *f, const char *mode);
 
 /*
  * pm_bitfini() - deallocate the given BITSTREAM.

panda/src/pnmimagetypes/pnmFileTypeSGIReader.cxx

@@ -55,7 +55,7 @@ static short get_byte_as_short (istream *f);
 static int readerr (istream *f);
 static void * xmalloc (int bytes);
 #define MALLOC(n, type)     (type *)xmalloc((n) * sizeof(type))
-static char * compression_name (char compr);
+static const char * compression_name (char compr);
 static void       read_bytes (istream *ifp, int n, char *buf);
 static bool read_header(istream *ifp, Header *head, const string &magic_number);
 static TabEntry * read_table (istream *ifp, int tablen);
@@ -503,7 +503,7 @@ xmalloc(int bytes) {
     return mem;
 }
 
-static char *
+static const char *
 compression_name(char compr) {
     switch( compr ) {
         case STORAGE_VERBATIM:

panda/src/tinydisplay/error.cxx

@@ -1,7 +1,7 @@
 #include <stdarg.h>
 #include "zgl.h"
 
-void gl_fatal_error(char *format, ...)
+void gl_fatal_error(const char *format, ...)
 {
   va_list ap;
 

panda/src/tinydisplay/tinyXGraphicsWindow.cxx

@@ -916,7 +916,7 @@ set_wm_properties(const WindowProperties &properties, bool already_mapped) {
   XClassHint *class_hints_p = NULL;
   if (properties.get_undecorated()) {
     class_hints_p = XAllocClassHint();
-    class_hints_p->res_class = "Undecorated";
+    class_hints_p->res_class = (char *)"Undecorated";
 
     if (!properties.get_fullscreen()) {
       type_data[next_type_data++] = _net_wm_window_type_splash;

panda/src/tinydisplay/zgl.h

@@ -230,7 +230,7 @@ void gl_resizeImageNoInterpolate(unsigned char *dest,int xsize_dest,int ysize_de
 
 GLContext *gl_get_context(void);
 
-void gl_fatal_error(char *format, ...);
+void gl_fatal_error(const char *format, ...);
 
 
 /* specular buffer "api" */