Index: posixmodule.c
===================================================================
--- posixmodule.c	(revision 84114)
+++ posixmodule.c	(working copy)
@@ -1109,7 +1109,7 @@
 }
 
 /* Grab GetFinalPathNameByHandle dynamically from kernel32 */
-static int has_GetFinalPathNameByHandle = 0;
+static int has_GetFinalPathNameByHandle = -1;
 static DWORD (CALLBACK *Py_GetFinalPathNameByHandleA)(HANDLE, LPSTR, DWORD,
                                                       DWORD);
 static DWORD (CALLBACK *Py_GetFinalPathNameByHandleW)(HANDLE, LPWSTR, DWORD,
@@ -1117,11 +1117,10 @@
 static int
 check_GetFinalPathNameByHandle()
 {
-    HINSTANCE hKernel32;
-    /* only recheck */
-    if (!has_GetFinalPathNameByHandle)
+    /* only check once */
+    if (has_GetFinalPathNameByHandle < 0)
     {
-        hKernel32 = GetModuleHandle("KERNEL32");
+        HINSTANCE hKernel32 = GetModuleHandle("KERNEL32");
         *(FARPROC*)&Py_GetFinalPathNameByHandleA = GetProcAddress(hKernel32,
                                                 "GetFinalPathNameByHandleA");
         *(FARPROC*)&Py_GetFinalPathNameByHandleW = GetProcAddress(hKernel32,