diff --git a/doomclassic/doom/d_items.cpp b/doomclassic/doom/d_items.cpp
index bafcbe30..49741902 100644
--- a/doomclassic/doom/d_items.cpp
+++ b/doomclassic/doom/d_items.cpp
@@ -27,16 +27,17 @@ If you have questions concerning this license or the applicable additional terms
 */
 
 #include "Precompiled.h"
-#include "globaldata.h"
-
-// We are referring to sprite numbers.
-#include "info.h"
 
 #ifdef __GNUG__
 #pragma implementation "d_items.h"
 #endif
 #include "d_items.h"
 
+#include "globaldata.h"
+
+// We are referring to sprite numbers.
+#include "info.h"
+
 
 //
 // PSPRITE ACTIONS for waepons.
diff --git a/doomclassic/doom/d_main.cpp b/doomclassic/doom/d_main.cpp
index d4c4c9bc..b872a20a 100644
--- a/doomclassic/doom/d_main.cpp
+++ b/doomclassic/doom/d_main.cpp
@@ -414,7 +414,7 @@ void D_DoAdvanceDemo (void)
 			::g->pagetic = 8 * TICRATE;
 
 		::g->gamestate = GS_DEMOSCREEN;
-		::g->pagename = "INTERPIC";
+		::g->pagename = (char *)"INTERPIC";
 
 		if ( ::g->gamemode == commercial )
 			S_StartMusic(mus_dm2ttl);
@@ -428,7 +428,7 @@ void D_DoAdvanceDemo (void)
 	case 2:
 		::g->pagetic = 3 * TICRATE;
 		::g->gamestate = GS_DEMOSCREEN;
-		::g->pagename = "INTERPIC";
+		::g->pagename = (char *)"INTERPIC";
 		break;
 	case 3:
 		G_DeferedPlayDemo ("demo2");
@@ -436,7 +436,7 @@ void D_DoAdvanceDemo (void)
 	case 4:
 		::g->pagetic = 3 * TICRATE;
 		::g->gamestate = GS_DEMOSCREEN;
-		::g->pagename = "INTERPIC";
+		::g->pagename = (char *)"INTERPIC";
 		break;
 	case 5:
 		G_DeferedPlayDemo ("demo3");
@@ -445,7 +445,7 @@ void D_DoAdvanceDemo (void)
 	case 6:
 		::g->pagetic = 3 * TICRATE;
 		::g->gamestate = GS_DEMOSCREEN;
-		::g->pagename = "INTERPIC";
+		::g->pagename = (char *)"INTERPIC";
 		break;
 	case 7:
 		G_DeferedPlayDemo ("demo4");
diff --git a/doomclassic/doom/doomdef.cpp b/doomclassic/doom/doomdef.cpp
index 63d063e2..764cc5bf 100644
--- a/doomclassic/doom/doomdef.cpp
+++ b/doomclassic/doom/doomdef.cpp
@@ -27,14 +27,15 @@ If you have questions concerning this license or the applicable additional terms
 */
 
 #include "Precompiled.h"
-#include "globaldata.h"
-
 
 #ifdef __GNUG__
 #pragma implementation "doomdef.h"
 #endif
 #include "doomdef.h"
 
+#include "globaldata.h"
+
+
 // Location for any defines turned variables.
 
 // None.
diff --git a/doomclassic/doom/doominterface.cpp b/doomclassic/doom/doominterface.cpp
index 104d6461..ab7c2c5a 100644
--- a/doomclassic/doom/doominterface.cpp
+++ b/doomclassic/doom/doominterface.cpp
@@ -41,7 +41,7 @@ extern void I_SetTime( int );
 bool waitingForWipe;
 
 static const int dargc = 7;
-static char* dargv[4][7] =
+static const char* dargv[4][7] =
 {
 	{ "doomlauncher", "-net", "0", "127.0.0.1", "127.0.0.1", "127.0.0.1", "127.0.0.1" },
 	{ "doomlauncher", "-net", "1", "127.0.0.1", "127.0.0.1", "127.0.0.1", "127.0.0.1" },
@@ -106,7 +106,7 @@ void DoomInterface::Startup( int playerscount, bool multiplayer )
 			printf( "\n" );
 			DoomLib::InitGame(mpArgc[i], mpArgVPtr[i] );
 		} else {
-			DoomLib::InitGame(localdargc, dargv[i] ); 
+			DoomLib::InitGame(localdargc, (char **)dargv[i] );
 		}
 
 		if( DoomLib::skipToLoad ) {
diff --git a/doomclassic/doom/doomlib.cpp b/doomclassic/doom/doomlib.cpp
index 9cbd8baf..44529c0a 100644
--- a/doomclassic/doom/doomlib.cpp
+++ b/doomclassic/doom/doomlib.cpp
@@ -498,7 +498,7 @@ int DoomLib::PlayerIndexToRemoteNode( int index ) {
 	return indexMap[::g->consoleplayer][index];
 }
 
-void I_Error (char *error, ...);
+void I_Error (const char *error, ...);
 extern bool useTech5Packets;
 
 void DoomLib::PollNetwork() {
diff --git a/doomclassic/doom/dstrings.cpp b/doomclassic/doom/dstrings.cpp
index 9c419697..761374ad 100644
--- a/doomclassic/doom/dstrings.cpp
+++ b/doomclassic/doom/dstrings.cpp
@@ -27,14 +27,13 @@ If you have questions concerning this license or the applicable additional terms
 */
 
 #include "Precompiled.h"
-#include "globaldata.h"
-
 
 #ifdef __GNUG__
 #pragma implementation "dstrings.h"
 #endif
 #include "dstrings.h"
 
+#include "globaldata.h"
 
 
 const char* endmsg[NUM_QUITMESSAGES+1]=
diff --git a/doomclassic/doom/f_finale.cpp b/doomclassic/doom/f_finale.cpp
index 497f7eb6..79dafc9a 100644
--- a/doomclassic/doom/f_finale.cpp
+++ b/doomclassic/doom/f_finale.cpp
@@ -592,9 +592,9 @@ qboolean F_CastResponder (event_t* ev)
 }
 
 
-void F_CastPrint (char* text)
+void F_CastPrint (const char* text)
 {
-    char*	ch;
+    const char*	ch;
     int		c;
     int		cx;
     int		w;
diff --git a/doomclassic/doom/g_game.cpp b/doomclassic/doom/g_game.cpp
index 55f35fed..a84d9c69 100644
--- a/doomclassic/doom/g_game.cpp
+++ b/doomclassic/doom/g_game.cpp
@@ -1844,9 +1844,9 @@ void G_BeginRecording (void)
 //
 // G_PlayDemo 
 //
-void G_DeferedPlayDemo (char* name) 
+void G_DeferedPlayDemo (const char* name)
 { 
-	::g->defdemoname = name; 
+	::g->defdemoname = (char *)name;
 	::g->gameaction = ga_playdemo; 
 } 
 
@@ -1946,14 +1946,14 @@ void G_DoPlayDemo (void)
 //
 // G_TimeDemo 
 //
-void G_TimeDemo (char* name) 
+void G_TimeDemo (const char* name)
 { 	 
 	::g->nodrawers = M_CheckParm ("-nodraw"); 
 	::g->noblit = M_CheckParm ("-noblit"); 
 	::g->timingdemo = true; 
 	::g->singletics = true; 
 
-	::g->defdemoname = name; 
+	::g->defdemoname = (char *)name;
 	::g->gameaction = ga_playdemo; 
 } 
 
diff --git a/doomclassic/doom/g_game.h b/doomclassic/doom/g_game.h
index f7947ad1..38153d7e 100644
--- a/doomclassic/doom/g_game.h
+++ b/doomclassic/doom/g_game.h
@@ -46,7 +46,7 @@ void G_InitNew ( skill_t skill, int episode, int map );
 // but a warp test can start elsewhere
 void G_DeferedInitNew (skill_t skill, int episode, int map);
 
-void G_DeferedPlayDemo (char* demo);
+void G_DeferedPlayDemo (const char* demo);
 
 // Can be called by the startup code or M_Responder,
 // calls P_SetupLevel or W_EnterWorld.
@@ -63,7 +63,7 @@ void G_RecordDemo (char* name);
 void G_BeginRecording (void);
 
 void G_PlayDemo (char* name);
-void G_TimeDemo (char* name);
+void G_TimeDemo (const char* name);
 qboolean G_CheckDemoStatus (void);
 
 void G_ExitLevel (void);
diff --git a/doomclassic/doom/globaldata.cpp b/doomclassic/doom/globaldata.cpp
index 79632061..e8c57274 100644
--- a/doomclassic/doom/globaldata.cpp
+++ b/doomclassic/doom/globaldata.cpp
@@ -84,11 +84,11 @@ void M_SetupNextMenu(menu_t *menudef);
 void M_DrawThermo(int x,int y,int thermWidth,int thermDot);
 void M_DrawEmptyCell(menu_t *menu,int item);
 void M_DrawSelCell(menu_t *menu,int item);
-void M_WriteText(int x, int y, char *string);
-int  M_StringWidth(char *string);
-int  M_StringHeight(char *string);
+void M_WriteText(int x, int y, const char *string);
+int  M_StringWidth(const char *string);
+int  M_StringHeight(const char *string);
 void M_StartControlPanel(void);
-void M_StartMessage(char *string,messageRoutine_t routine,qboolean input);
+void M_StartMessage(const char *string,messageRoutine_t routine,qboolean input);
 void M_StopMessage(void);
 void M_ClearMenus (void);
 
diff --git a/doomclassic/doom/i_net_win32.cpp b/doomclassic/doom/i_net_win32.cpp
index fcea41d6..8ed589c0 100644
--- a/doomclassic/doom/i_net_win32.cpp
+++ b/doomclassic/doom/i_net_win32.cpp
@@ -97,16 +97,17 @@ void	(*netsend) (void);
 //
 int UDPsocket (void)
 {
-	int	s;
+	//int	s;
 
 	// allocate a socket
 	//s = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
-	if ( !IsValidSocket( s ) ) {
-		int err = GetLastSocketError();
-		I_Error( "can't create socket, error %d", err );
-	}
+	//if ( !IsValidSocket( s ) ) {
+	//	int err = GetLastSocketError();
+	//	I_Error( "can't create socket, error %d", err );
+	//}
 
-	return s;
+	//return s;
+	return 0;
 }
 
 //
@@ -265,15 +266,15 @@ void I_ShutdownNetwork( void ) {
 
 void I_NetCmd (void)
 {
-	if (::g->doomcom.command == CMD_SEND)
-	{
-		netsend ();
-	}
-	else if (::g->doomcom.command == CMD_GET)
-	{
-		netget ();
-	}
-	else
-		I_Error ("Bad net cmd: %i\n",::g->doomcom.command); 
+	//if (::g->doomcom.command == CMD_SEND)
+	//{
+	//	netsend ();
+	//}
+	//else if (::g->doomcom.command == CMD_GET)
+	//{
+	//	netget ();
+	//}
+	//else
+	//	I_Error ("Bad net cmd: %i\n",::g->doomcom.command);
 }
 
diff --git a/doomclassic/doom/i_sound_openal.cpp b/doomclassic/doom/i_sound_openal.cpp
index dc213e3c..554ae2fc 100644
--- a/doomclassic/doom/i_sound_openal.cpp
+++ b/doomclassic/doom/i_sound_openal.cpp
@@ -149,7 +149,7 @@ getsfx
 // This function loads the sound data from the WAD lump,
 // for single sound.
 //
-void* getsfx ( char* sfxname, int* len )
+void* getsfx ( const char* sfxname, int* len )
 {
 	unsigned char*      sfx;
 	unsigned char*	    sfxmem;
diff --git a/doomclassic/doom/i_sound_win32.cpp b/doomclassic/doom/i_sound_win32.cpp
index bd2d2e53..ec79ec60 100644
--- a/doomclassic/doom/i_sound_win32.cpp
+++ b/doomclassic/doom/i_sound_win32.cpp
@@ -158,7 +158,7 @@ getsfx
 // This function loads the sound data from the WAD lump,
 //  for single sound.
 //
-void* getsfx ( char* sfxname, int* len )
+void* getsfx ( const char* sfxname, int* len )
 {
 	unsigned char*      sfx;
 	unsigned char*	    sfxmem;
diff --git a/doomclassic/doom/i_system.cpp b/doomclassic/doom/i_system.cpp
index 2a3bb735..8a35e6bc 100644
--- a/doomclassic/doom/i_system.cpp
+++ b/doomclassic/doom/i_system.cpp
@@ -126,7 +126,7 @@ void I_EndRead(void)
 // I_Error
 //
 extern bool debugOutput;
-void I_Printf(char* msg, ...)
+void I_Printf(const char* msg, ...)
 {
 	char pmsg[1024];
     va_list	argptr;
@@ -143,7 +143,7 @@ void I_Printf(char* msg, ...)
 }
 
 
-void I_PrintfE(char* msg, ...)
+void I_PrintfE(const char* msg, ...)
 {
 	char pmsg[1024];
     va_list	argptr;
@@ -160,7 +160,7 @@ void I_PrintfE(char* msg, ...)
 	}
 }
 
-void I_Error(char *error, ...)
+void I_Error(const char *error, ...)
 {
 	const int ERROR_MSG_SIZE = 1024;
 	char error_msg[ERROR_MSG_SIZE];
diff --git a/doomclassic/doom/i_system.h b/doomclassic/doom/i_system.h
index 24a437fd..a159c05d 100644
--- a/doomclassic/doom/i_system.h
+++ b/doomclassic/doom/i_system.h
@@ -79,9 +79,9 @@ ticcmd_t* I_BaseTiccmd (void);
 void I_Quit (void);
 
 
-void I_Error (char *error, ...);
-void I_Printf(char *error, ...);
-void I_PrintfE(char *error, ...);
+void I_Error (const char *error, ...);
+void I_Printf(const char *error, ...);
+void I_PrintfE(const char *error, ...);
 
 
 #endif
diff --git a/doomclassic/doom/info.cpp b/doomclassic/doom/info.cpp
index c21552c6..861cbf4d 100644
--- a/doomclassic/doom/info.cpp
+++ b/doomclassic/doom/info.cpp
@@ -27,19 +27,21 @@ If you have questions concerning this license or the applicable additional terms
 */
 
 #include "Precompiled.h"
-#include "globaldata.h"
-
-// Data.
-#include "sounds.h"
-#include "m_fixed.h"
 
 #ifdef __GNUG__
 #pragma implementation "info.h"
 #endif
 #include "info.h"
 
+#include "globaldata.h"
+
+// Data.
+#include "sounds.h"
+#include "m_fixed.h"
+
 #include "p_mobj.h"
 
+
 // RB: sprnames must be NULL-terminated
 const char * const sprnames[NUMSPRITES + 1] = {
     "TROO","SHTG","PUNG","PISG","PISF","SHTF","SHT2","CHGG","CHGF","MISG",
diff --git a/doomclassic/doom/m_argv.cpp b/doomclassic/doom/m_argv.cpp
index 582befef..c1d8572d 100644
--- a/doomclassic/doom/m_argv.cpp
+++ b/doomclassic/doom/m_argv.cpp
@@ -42,7 +42,7 @@ If you have questions concerning this license or the applicable additional terms
 // in the program's command line arguments.
 // Returns the argument number (1 to argc-1)
 // or 0 if not present
-int M_CheckParm (char *check)
+int M_CheckParm (const char *check)
 {
     int		i;
 
diff --git a/doomclassic/doom/m_argv.h b/doomclassic/doom/m_argv.h
index b4d7630a..9962cba5 100644
--- a/doomclassic/doom/m_argv.h
+++ b/doomclassic/doom/m_argv.h
@@ -37,7 +37,7 @@ extern  char**	myargv;
 
 // Returns the position of the given parameter
 // in the arg list (0 if not found).
-int M_CheckParm (char* check);
+int M_CheckParm (const char* check);
 
 
 #endif
diff --git a/doomclassic/doom/m_fixed.cpp b/doomclassic/doom/m_fixed.cpp
index 4f72fd35..9b8b50b7 100644
--- a/doomclassic/doom/m_fixed.cpp
+++ b/doomclassic/doom/m_fixed.cpp
@@ -27,19 +27,18 @@ If you have questions concerning this license or the applicable additional terms
 */
 
 #include "Precompiled.h"
-#include "globaldata.h"
-
-#include "stdlib.h"
-
-#include "doomtype.h"
-#include "i_system.h"
 
 #ifdef __GNUG__
 #pragma implementation "m_fixed.h"
 #endif
 #include "m_fixed.h"
 
+#include "globaldata.h"
 
+#include "stdlib.h"
+
+#include "doomtype.h"
+#include "i_system.h"
 
 
 // Fixme. __USE_C_FIXED__ or something.
diff --git a/doomclassic/doom/m_menu.cpp b/doomclassic/doom/m_menu.cpp
index 7719a46c..57b9366c 100644
--- a/doomclassic/doom/m_menu.cpp
+++ b/doomclassic/doom/m_menu.cpp
@@ -183,11 +183,11 @@ void M_SetupNextMenu(menu_t *menudef);
 void M_DrawThermo(int x,int y,int thermWidth,int thermDot);
 void M_DrawEmptyCell(menu_t *menu,int item);
 void M_DrawSelCell(menu_t *menu,int item);
-void M_WriteText(int x, int y, char *string);
-int  M_StringWidth(char *string);
-int  M_StringHeight(char *string);
+void M_WriteText(int x, int y, const char *string);
+int  M_StringWidth(const char *string);
+int  M_StringHeight(const char *string);
 void M_StartControlPanel(void);
-void M_StartMessage(char *string,messageRoutine_t routine,qboolean input);
+void M_StartMessage(const char *string,messageRoutine_t routine,qboolean input);
 void M_StopMessage(void);
 void M_ClearMenus (void);
 
@@ -1051,13 +1051,13 @@ M_DrawSelCell
 
 void
 M_StartMessage
-( char*		string,
+( const char*	string,
  messageRoutine_t routine,
  qboolean	input )
 {
 	::g->messageLastMenuActive = ::g->menuactive;
 	::g->messageToPrint = 1;
-	::g->messageString = string;
+	::g->messageString = (char *)string;
 	::g->messageRoutine = (messageRoutine_t)routine;
 	::g->messageNeedsInput = input;
 	::g->menuactive = true;
@@ -1077,7 +1077,7 @@ void M_StopMessage(void)
 //
 // Find string width from ::g->hu_font chars
 //
-int M_StringWidth(char* string)
+int M_StringWidth(const char* string)
 {
 	unsigned int             i;
 	int             w = 0;
@@ -1100,7 +1100,7 @@ int M_StringWidth(char* string)
 //
 //      Find string height from ::g->hu_font chars
 //
-int M_StringHeight(char* string)
+int M_StringHeight(const char* string)
 {
 	unsigned int             i;
 	int             h;
@@ -1122,10 +1122,10 @@ void
 M_WriteText
 ( int		x,
  int		y,
- char*		string)
+ const char*	string)
 {
 	int		w;
-	char*	ch;
+	const char*	ch;
 	int		c;
 	int		cx;
 	int		cy;
diff --git a/doomclassic/doom/sounds.h b/doomclassic/doom/sounds.h
index 8ff5825a..b06ef809 100644
--- a/doomclassic/doom/sounds.h
+++ b/doomclassic/doom/sounds.h
@@ -38,7 +38,7 @@ typedef struct sfxinfo_struct	sfxinfo_t;
 struct sfxinfo_struct
 {
     // up to 6-character name
-    char*	name;
+    const char*	name;
 
     // Sfx singularity (only one at a time)
     int		singularity;
diff --git a/doomclassic/doom/structs.h b/doomclassic/doom/structs.h
index 8b776441..04e40b82 100644
--- a/doomclassic/doom/structs.h
+++ b/doomclassic/doom/structs.h
@@ -53,7 +53,7 @@ typedef struct
 //  f_finale.structs begin // 
 typedef struct
 {
-    char		*name;
+    const char		*name;
     mobjtype_t	type;
 } castinfo_t;
 // f_finale.structs end // 
@@ -212,7 +212,7 @@ typedef enum
 //  m_misc.structs begin // 
 struct default_t
 {
-    char*	name;
+    const char*	name;
 	union {
 		int *			location;
 		const char * *	charLocation;
@@ -232,13 +232,13 @@ struct default_t
 		untranslated( 0 ) {
 	}
 
-	default_t( char * name_, int * location_, int defaultvalue_ ) :
+	default_t( const char * name_, int * location_, int defaultvalue_ ) :
 		name( name_ ),
 		location( location_ ),
 		defaultvalue( defaultvalue_ ) {
 	}
 
-	default_t( char * name_, const char * * charLocation_, const char * charDefault_ ) :
+	default_t( const char * name_, const char * * charLocation_, const char * charDefault_ ) :
 		name( name_ ),
 		charLocation( charLocation_ ),
 		charDefault( charDefault_ ) {
diff --git a/doomclassic/doom/w_wad.cpp b/doomclassic/doom/w_wad.cpp
index 4e827a92..9f609f1a 100644
--- a/doomclassic/doom/w_wad.cpp
+++ b/doomclassic/doom/w_wad.cpp
@@ -27,6 +27,12 @@ If you have questions concerning this license or the applicable additional terms
 */
 
 #include "Precompiled.h"
+
+#ifdef __GNUG__
+#pragma implementation "w_wad.h"
+#endif
+#include "w_wad.h"
+
 #include "globaldata.h"
 
 
@@ -44,12 +50,6 @@ If you have questions concerning this license or the applicable additional terms
 
 #include "idlib/precompiled.h"
 
-#ifdef __GNUG__
-#pragma implementation "w_wad.h"
-#endif
-#include "w_wad.h"
-
-
 
 //
 // GLOBALS
diff --git a/neo/libs/timidity/config.h b/neo/libs/timidity/config.h
index e1b365c7..a252c793 100644
--- a/neo/libs/timidity/config.h
+++ b/neo/libs/timidity/config.h
@@ -23,7 +23,9 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 #define __WIN32__
 #endif
 
+#ifndef LITTLE_ENDIAN
 #define LITTLE_ENDIAN
+#endif
 
 #include <stdint.h>
 
diff --git a/neo/libs/timidity/controls.h b/neo/libs/timidity/controls.h
index 95a911fd..fedbd04d 100644
--- a/neo/libs/timidity/controls.h
+++ b/neo/libs/timidity/controls.h
@@ -58,14 +58,14 @@ song if we're less than a second into this one. */
 #define VERB_DEBUG_SILLY	4
 
 typedef struct {
-	char *id_name, id_character;
+	const char *id_name, id_character;
 	int verbosity, trace_playing, opened;
 
 	int (*open)(int using_stdin, int using_stdout);
 	void (*pass_playing_list)(int number_of_files, char *list_of_files[]);
 	void (*close)(void);
 	int (*read)(int *valp);
-	int (*cmsg)(int type, int verbosity_level, char *fmt, ...);
+	int (*cmsg)(int type, int verbosity_level, const char *fmt, ...);
 
 	void (*refresh)(void);
 	void (*reset)(void);
diff --git a/neo/libs/timidity/instrum.cpp b/neo/libs/timidity/instrum.cpp
index 25eb5b7f..16ddae09 100644
--- a/neo/libs/timidity/instrum.cpp
+++ b/neo/libs/timidity/instrum.cpp
@@ -194,10 +194,10 @@ static Instrument *load_instrument(char *name, int percussion,
 	idFile * fp;
 	uint8_t tmp[1024];
 	int i,j,noluck=0;
-	char *path;
+	const char *path;
 	char filename[1024];
 #ifdef PATCH_EXT_LIST
-	static char *patch_ext[] = PATCH_EXT_LIST;
+	static const char *patch_ext[] = PATCH_EXT_LIST;
 #endif
 
 	if (!name) return 0;
diff --git a/neo/libs/timidity/readmidi.cpp b/neo/libs/timidity/readmidi.cpp
index 37b244b6..0ba46c22 100644
--- a/neo/libs/timidity/readmidi.cpp
+++ b/neo/libs/timidity/readmidi.cpp
@@ -113,7 +113,7 @@ static  int32_t getvl(void)
 
 /* Print a string from the file, followed by a newline. Any non-ASCII
 or unprintable characters will be converted to periods. */
-static int dumpstring( int32_t len, char *label)
+static int dumpstring( int32_t len, const char *label)
 {
 	signed char *s=(signed char *)safe_malloc(len+1);
 	if (len != (int32_t)read_local(s, 1, len))
@@ -171,7 +171,7 @@ static MidiEventList *read_midi_event(void)
 			len=getvl();
 			if (type>0 && type<16)
 			{
-				static char *label[]={
+				static const char *label[]={
 					"Text event: ", "Text: ", "Copyright: ", "Track name: ",
 						"Instrument: ", "Lyric: ", "Marker: ", "Cue point: "};
 					dumpstring(len, label[(type>7) ? 0 : type]);
diff --git a/neo/libs/timidity/sdl_c.cpp b/neo/libs/timidity/sdl_c.cpp
index 39741368..06ffe1b5 100644
--- a/neo/libs/timidity/sdl_c.cpp
+++ b/neo/libs/timidity/sdl_c.cpp
@@ -51,7 +51,7 @@ static void ctl_reset(void);
 static int ctl_open(int using_stdin, int using_stdout);
 static void ctl_close(void);
 static int ctl_read(int *valp);
-static int cmsg(int type, int verbosity_level, char *fmt, ...);
+static int cmsg(int type, int verbosity_level, const char *fmt, ...);
 
 #ifdef _DEBUG
 #define safeOutputDebug(x) printf( "%s", x )
@@ -92,7 +92,7 @@ static int ctl_read(int *valp)
 }
 extern void SendDebugMsg(const char*);
 extern bool debugOutput;
-static int cmsg(int type, int verbosity_level, char *fmt, ...)
+static int cmsg(int type, int verbosity_level, const char *fmt, ...)
 {
 #ifdef _DEBUG
 	va_list ap;
diff --git a/neo/libs/timidity/timidity.h b/neo/libs/timidity/timidity.h
index 06a8a17c..619c43ed 100644
--- a/neo/libs/timidity/timidity.h
+++ b/neo/libs/timidity/timidity.h
@@ -54,9 +54,9 @@ extern void Real_Tim_Free( void *pt );
 
 typedef struct {
 	int rate, encoding;
-	char *id_name;
+	const char *id_name;
 	FILE* fp;
-	char *file_name;
+	const char *file_name;
 
 	int (*open_output)(void); /* 0=success, 1=warning, -1=fatal error */
 	void (*close_output)(void);