1 files changed, 4 insertions, 2 deletions
diff --git a/implement.h b/implement.h
index 4172618..ed01bda 100644
--- a/implement.h
+++ b/implement.h
@@ -290,14 +290,16 @@ struct ThreadKeyAssoc {
 #define PTW32_SERVICES_FACILITY		0xBAD
 #define PTW32_SERVICES_ERROR	       	0xDEED
 
+#endif /* _MSC_VER */
+
 /*
  * Services available through EXCEPTION_PTW32_SERVICES
+ * and also used [as parameters to ptw32_throw()] as
+ * generic exception selectors.
  */
 #define PTW32_EPS_CANCEL       0
 #define PTW32_EPS_EXIT         1
 
-#endif /* _MSC_VER */
-
 
 /* Function pointer to TryEnterCriticalSection if it exists; otherwise NULL */
 extern BOOL (WINAPI *ptw32_try_enter_critical_section)(LPCRITICAL_SECTION);