diff --git a/include/RemotePlugin.h b/include/RemotePlugin.h
index d57a5d293..42caa36aa 100644
--- a/include/RemotePlugin.h
+++ b/include/RemotePlugin.h
@@ -36,17 +36,12 @@
 #include <string>
 #include <cassert>
 
-#ifdef LMMS_BUILD_WIN32
+
+#if defined(LMMS_HAVE_SYS_IPC_H) && defined(LMMS_HAVE_SEMAPHORE_H)
+#include <sys/ipc.h>
+#include <semaphore.h>
+#else
 #define USE_QT_SEMAPHORES
-#define USE_QT_SHMEM
-#endif
-
-#ifdef LMMS_BUILD_APPLE
-#define USE_QT_SEMAPHORES
-#endif
-
-
-#ifdef USE_QT_SEMAPHORES
 
 #ifdef LMMS_HAVE_PROCESS_H
 #include <process.h>
@@ -54,39 +49,25 @@
 
 #include <QtCore/QtGlobal>
 #include <QtCore/QSystemSemaphore>
-
-#else /* USE_QT_SEMAPHORES */
-
-#ifdef LMMS_HAVE_SYS_IPC_H
-#include <sys/ipc.h>
 #endif
 
-#ifdef LMMS_HAVE_SEMAPHORE_H
-#include <semaphore.h>
-#endif
-
-#endif
-
-
-#ifdef USE_QT_SHMEM
-
-#include <QtCore/QtGlobal>
-#include <QtCore/QSharedMemory>
-
-typedef int32_t key_t;
-
-#else /* USE_QT_SHMEM */
 
 #ifdef LMMS_HAVE_SYS_SHM_H
 #include <sys/shm.h>
-#endif
 
 #ifdef LMMS_HAVE_UNISTD_H
 #include <unistd.h>
 #endif
+#else
+#define USE_QT_SHMEM
 
+#include <QtCore/QtGlobal>
+#include <QtCore/QSharedMemory>
+
+#if !defined(LMMS_HAVE_SYS_TYPES_H) || defined(LMMS_BUILD_WIN32)
+typedef int32_t key_t;
+#endif
 #endif
-
 
 
 #ifdef LMMS_HAVE_LOCALE_H
diff --git a/src/core/VstSyncController.cpp b/src/core/VstSyncController.cpp
index 1e1294c32..a28b9adb1 100644
--- a/src/core/VstSyncController.cpp
+++ b/src/core/VstSyncController.cpp
@@ -30,12 +30,7 @@
 #include "lmmsconfig.h"
 #include "Mixer.h"
 #include "VstSyncController.h"
-
-#ifdef LMMS_BUILD_WIN32
-#ifndef USE_QT_SHMEM
-#define USE_QT_SHMEM
-#endif
-#endif
+#include "RemotePlugin.h"
 
 #ifndef USE_QT_SHMEM
 #include <stdio.h>