diff --git a/libs/wine/port.c b/libs/wine/port.c
index 32b819bc138..c9d38dcb8d4 100644
--- a/libs/wine/port.c
+++ b/libs/wine/port.c
@@ -54,36 +54,11 @@ void wine_pthread_set_functions( const struct wine_pthread_functions *functions,
  *
  * Switch to the specified stack and call the function.
  */
-#if defined(__sparc__) && defined(__GNUC__)
-__ASM_GLOBAL_FUNC( wine_switch_to_stack,
-                   "mov %o0, %l0\n\t" /* store first argument */
-                   "mov %o1, %l1\n\t" /* store second argument */
-                   "sub %o2, 96, %sp\n\t" /* store stack */
-                   "call %l0, 0\n\t" /* call func */
-                   "mov %l1, %o0\n\t" /* delay slot:  arg for func */
-                   "ta 0x01") /* breakpoint - we never get here */
-#elif defined(__powerpc__) && defined(__APPLE__)
-__ASM_GLOBAL_FUNC( wine_switch_to_stack,
-                   "mtctr r3\n\t" /* func -> ctr */
-                   "mr r3,r4\n\t" /* args -> function param 1 (r3) */
-                   "mr r1,r5\n\t" /* stack */
-                   "subi r1,r1,0x100\n\t" /* adjust stack pointer */
-                   "bctrl\n" /* call ctr */
-                   "1:\tb 1b") /* loop */
-#elif defined(__ALPHA__) && defined(__GNUC__)
-__ASM_GLOBAL_FUNC( wine_switch_to_stack,
-                   "mov $16,$0\n\t" /* func */
-                   "mov $17,$16\n\t" /* arg */
-                   "mov $18,$30\n\t" /* stack */
-                   "jsr $31,($0),0\n\t" /* call func */
-                   "L1:\tbr $31,L1") /* loop */
-#else
 void DECLSPEC_NORETURN wine_switch_to_stack( void (*func)(void *), void *arg, void *stack )
 {
     wine_call_on_stack( (int (*)(void *))func, arg, stack );
     abort();
 }
-#endif
 
 
 /***********************************************************************
@@ -196,5 +171,5 @@ __ASM_GLOBAL_FUNC( wine_call_on_stack,
                    "ret\n\t"                /* return */
                    "restore\n\t")           /* delay slot: pop */
 #else
-#error You must implement wine_switch_to_stack for your platform
+#error You must implement wine_call_on_stack for your platform
 #endif