diff -r 1baaab44a0b2 -r b5fd52ac760f hedgewars/SDLh.pas
--- a/hedgewars/SDLh.pas	Sat Sep 13 00:27:10 2014 +0400
+++ b/hedgewars/SDLh.pas	Tue Sep 16 12:47:39 2014 +0400
@@ -842,6 +842,7 @@
 
     PSDL_Thread = Pointer;
     PSDL_mutex = Pointer;
+    PSDL_sem = Pointer;
 
     TSDL_GLattr = (
         SDL_GL_RED_SIZE,
@@ -1064,6 +1065,16 @@
 function  SDL_LockMutex(mutex: PSDL_mutex): LongInt; cdecl; external SDLLibName {$IFNDEF SDL2}name 'SDL_mutexP'{$ENDIF};
 function  SDL_UnlockMutex(mutex: PSDL_mutex): LongInt; cdecl; external SDLLibName {$IFNDEF SDL2}name 'SDL_mutexV'{$ENDIF};
 
+
+function SDL_CreateSemaphore(initial_value: Longword): PSDL_sem; cdecl; external SDLLibName;
+procedure SDL_DestroySemaphore(sem: PSDL_sem); cdecl; external SDLLibName;
+function SDL_SemWait(sem: PSDL_sem): LongInt; cdecl; external SDLLibName;
+function SDL_SemTryWait(sem: PSDL_sem): LongInt; cdecl; external SDLLibName;
+function SDL_SemWaitTimeout(sem: PSDL_sem; ms: Longword): LongInt; cdecl; external SDLLibName;
+function SDL_SemPost(sem: PSDL_sem): LongInt; cdecl; external SDLLibName;
+function SDL_SemValue(sem: PSDL_sem): Longword; cdecl; external SDLLibName;
+
+
 function  SDL_GL_SetAttribute(attr: TSDL_GLattr; value: LongInt): LongInt; cdecl; external SDLLibName;
 procedure SDL_GL_SwapBuffers; cdecl; external SDLLibName;