diff --git a/src/frameworks/CoreServices/include/CarbonCore/Multiprocessing.h b/src/frameworks/CoreServices/include/CarbonCore/Multiprocessing.h
index 50ef3d82d1..887718b80b 100644
--- a/src/frameworks/CoreServices/include/CarbonCore/Multiprocessing.h
+++ b/src/frameworks/CoreServices/include/CarbonCore/Multiprocessing.h
@@ -14,8 +14,6 @@ enum {
 };
 
 typedef void* MPCriticalRegionID;
-typedef struct OpaqueMPSemaphoreID *MPSemaphoreID;
-typedef ItemCount MPSemaphoreCount;
 
 Boolean _MPIsFullyInitialized();
 OSStatus MPDelayUntil(AbsoluteTime* time);
@@ -25,10 +23,7 @@ OSStatus MPCreateCriticalRegion(MPCriticalRegionID* criticalRegion);
 OSStatus MPDeleteCriticalRegion(MPCriticalRegionID criticalRegion);
 OSStatus MPEnterCriticalRegion(MPCriticalRegionID criticalRegion, Duration timeout);
 OSStatus MPExitCriticalRegion(MPCriticalRegionID criticalRegion);
-OSStatus MPCreateSemaphore(MPSemaphoreCount maximumValue, MPSemaphoreCount initialValue, MPSemaphoreID *semaphore);
-OSStatus MPDeleteSemaphore(MPSemaphoreID semaphore);
-OSStatus MPSignalSemaphore(MPSemaphoreID semaphore);
-OSStatus MPWaitOnSemaphore(MPSemaphoreID semaphore, Duration timeout);
+
 // other functions are missing...
 
 #ifdef __cplusplus
diff --git a/src/frameworks/CoreServices/src/CarbonCore/Multiprocessing.cpp b/src/frameworks/CoreServices/src/CarbonCore/Multiprocessing.cpp
index 0527755093..a161ba3db3 100644
--- a/src/frameworks/CoreServices/src/CarbonCore/Multiprocessing.cpp
+++ b/src/frameworks/CoreServices/src/CarbonCore/Multiprocessing.cpp
@@ -21,15 +21,8 @@ along with Darling.  If not, see <http://www.gnu.org/licenses/>.
 #include <unistd.h>
 #include <ctime>
 #include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
 #include <CarbonCore/MacErrors.h>
 
-static int verbose = 0;
-__attribute__((constructor)) static void initme(void) {
-    verbose = getenv("STUB_VERBOSE") != NULL;
-}
-
 Boolean _MPIsFullyInitialized()
 {
 	return true;
@@ -116,27 +109,3 @@ OSStatus MPExitCriticalRegion(MPCriticalRegionID criticalRegion)
 	else
 		return paramErr;
 }
-
-OSStatus MPCreateSemaphore(MPSemaphoreCount maximumValue, MPSemaphoreCount initialValue, MPSemaphoreID *semaphore)
-{
-    if (verbose) puts("STUB: MPCreateSemaphore called");
-    return noErr;
-}
-
-OSStatus MPDeleteSemaphore(MPSemaphoreID semaphore)
-{
-    if (verbose) puts("STUB: MPDeleteSemaphore called");
-    return noErr;
-}
-
-OSStatus MPSignalSemaphore(MPSemaphoreID semaphore)
-{
-    if (verbose) puts("STUB: MPSignalSemaphore called");
-    return noErr;
-}
-
-OSStatus MPWaitOnSemaphore(MPSemaphoreID semaphore, Duration timeout)
-{
-    if (verbose) puts("STUB: MPWaitOnSemaphore called");
-    return noErr;
-}
\ No newline at end of file