diff -r c6eec0bdb630 -r 1ef5e2c41115 hedgewars/SDLh.pas
--- a/hedgewars/SDLh.pas	Mon Jul 31 11:31:31 2006 +0000
+++ b/hedgewars/SDLh.pas	Sat Aug 05 20:57:36 2006 +0000
@@ -197,6 +197,7 @@
      TByteArray = array[0..32767] of Byte;
 
      PSDL_Thread = Pointer;
+     PSDL_mutex = Pointer;
 
 function  SDL_Init(flags: Longword): Integer; cdecl; external SDLLibName;
 procedure SDL_Quit; cdecl; external SDLLibName;
@@ -243,6 +244,10 @@
 
 function  SDL_CreateThread(fn: pointer; data: pointer): PSDL_Thread; cdecl; external SDLLibName;
 procedure SDL_WaitThread(thread: PSDL_Thread; status: PInteger); cdecl; external SDLLibName;
+function  SDL_CreateMutex: PSDL_mutex; cdecl; external SDLLibName;
+procedure SDL_DestroyMutex(mutex: PSDL_mutex); cdecl; external SDLLibName;
+function  SDL_LockMutex(mutex: PSDL_mutex): integer; cdecl; external SDLLibName name 'SDL_mutexP';
+function  SDL_UnlockMutex(mutex: PSDL_mutex): integer; cdecl; external SDLLibName name 'SDL_mutexV';
 
 (*  TTF  *)