{Enter,Leave}CriticalSection imports should be outside #ifdef __PIC__

rts/HeapStackCheck.cmm

@@ -13,10 +13,10 @@
 #include "Cmm.h"
 
 #ifdef __PIC__
-import EnterCriticalSection;
-import LeaveCriticalSection;
 import pthread_mutex_unlock;
 #endif
+import EnterCriticalSection;
+import LeaveCriticalSection;
 
 /* Stack/Heap Check Failure
  * ------------------------

rts/PrimOps.cmm

@@ -47,9 +47,9 @@ import __gmpz_com;
 import base_GHCziIOBase_NestedAtomically_closure;
 import pthread_mutex_lock;
 import pthread_mutex_unlock;
+#endif
 import EnterCriticalSection;
 import LeaveCriticalSection;
-#endif
 
 /*-----------------------------------------------------------------------------
   Array Primitives

rts/StgMiscClosures.cmm

@@ -14,11 +14,11 @@
 
 #ifdef __PIC__
 import pthread_mutex_lock;
-import EnterCriticalSection;
-import LeaveCriticalSection;
 import base_GHCziBase_Czh_static_info;
 import base_GHCziBase_Izh_static_info;
 #endif
+import EnterCriticalSection;
+import LeaveCriticalSection;
 
 /* ----------------------------------------------------------------------------
    Support for the bytecode interpreter.