diff --git a/libs/main/core/piinit.cpp b/libs/main/core/piinit.cpp
index 86bcdb88..7f162ae3 100644
--- a/libs/main/core/piinit.cpp
+++ b/libs/main/core/piinit.cpp
@@ -397,4 +397,25 @@ __PIInit_Initializer__::~__PIInit_Initializer__() {
 	}
 }
 
-#endif // _PIP_INIT_STUB_
+#else // _PIP_INIT_STUB_
+#  ifdef PIP_HAS_THREADS
+int __PIInit_Initializer__::count_(0);
+PIInit * __PIInit_Initializer__::__instance__(0);
+
+
+__PIInit_Initializer__::__PIInit_Initializer__() {
+	count_++;
+	if (count_ > 1) return;
+	__instance__ = nullptr;
+}
+
+
+__PIInit_Initializer__::~__PIInit_Initializer__() {
+	count_--;
+	if (count_ > 0) return;
+	if (__instance__ != 0) {
+		__instance__ = nullptr;
+	}
+}
+#  endif // PIP_HAS_THREADS
+#endif   // _PIP_INIT_STUB_
diff --git a/libs/main/core/piinit.h b/libs/main/core/piinit.h
index 06fdc0d4..df70c26a 100644
--- a/libs/main/core/piinit.h
+++ b/libs/main/core/piinit.h
@@ -55,30 +55,6 @@ public:
 
 static __PIInit_Initializer__ __piinit_initializer__;
 
-#  ifdef _PIP_INIT_STUB_
-#	ifndef PIINIT_MICRO_STUB_DEFINED
-#	  define PIINIT_MICRO_STUB_DEFINED
-
-int __PIInit_Initializer__::count_            = 0;
-PIInit * __PIInit_Initializer__::__instance__ = nullptr;
-
-__PIInit_Initializer__::__PIInit_Initializer__() {
-	count_++;
-	if (count_ > 1) return;
-	__instance__ = nullptr;
-}
-
-__PIInit_Initializer__::~__PIInit_Initializer__() {
-	count_--;
-	if (count_ > 0) return;
-	if (__instance__ != nullptr) {
-		__instance__ = nullptr;
-	}
-}
-
-#	endif
-#  endif
-
 
 //! \~\ingroup Core
 //! \~\brief