diff -r 114b036522a6 -r fcdb6e3a9d36 hedgewars/SDLh.pas
--- a/hedgewars/SDLh.pas	Tue Aug 27 06:05:03 2019 +0200
+++ b/hedgewars/SDLh.pas	Tue Aug 27 08:41:48 2019 +0200
@@ -478,7 +478,6 @@
     SDL_SCANCODE_KP_E = 192;
     SDL_SCANCODE_KP_F = 193;
     SDL_SCANCODE_KP_XOR = 194;
-    SDL_SCANCODE_KP_POWER = 195;
     SDL_SCANCODE_KP_PERCENT = 196;
     SDL_SCANCODE_KP_LESS = 197;
     SDL_SCANCODE_KP_GREATER = 198;
@@ -934,6 +933,7 @@
 
     PSDL_Thread = Pointer;
     PSDL_mutex = Pointer;
+    PSDL_sem = Pointer;
 
     TSDL_GLattr = (
         SDL_GL_RED_SIZE,
@@ -1161,6 +1161,7 @@
 function  SDL_CreateThread(fn: Pointer; name: PChar; data: Pointer): PSDL_Thread; cdecl; external SDLLibName;
 {$ENDIF}
 procedure SDL_WaitThread(thread: PSDL_Thread; status: PLongInt); cdecl; external SDLLibName;
+procedure SDL_DetachThread(thread: PSDL_Thread); cdecl; external SDLLibName;
 procedure SDL_KillThread(thread: PSDL_Thread); cdecl; external SDLLibName;
 
 function  SDL_CreateMutex: PSDL_mutex; cdecl; external SDLLibName;
@@ -1168,6 +1169,11 @@
 function  SDL_LockMutex(mutex: PSDL_mutex): LongInt; cdecl; external SDLLibName;
 function  SDL_UnlockMutex(mutex: PSDL_mutex): LongInt; cdecl; external SDLLibName;
 
+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_SemPost(sem: PSDL_sem): LongInt; cdecl; external SDLLibName;
+
 function  SDL_GL_SetAttribute(attr: TSDL_GLattr; value: LongInt): LongInt; cdecl; external SDLLibName;
 procedure SDL_GL_SwapBuffers; cdecl; external SDLLibName;