1 files changed, 5 insertions, 5 deletions
diff --git a/ptr_chck.c b/ptr_chck.c
index 6195ac86..9b0da0c1 100644
--- a/ptr_chck.c
+++ b/ptr_chck.c
@@ -205,11 +205,11 @@ GC_API void * GC_CALL GC_is_visible(void *p)
         if (hhdr == 0) {
             if (GC_is_static_root(p)) return(p);
             /* Else do it again correctly:      */
-#           if (defined(DYNAMIC_LOADING) || defined(MSWIN32) || \
-                defined(MSWINCE) || defined(PCR))
-                GC_register_dynamic_libraries();
-                if (GC_is_static_root(p))
-                    return(p);
+#           if defined(DYNAMIC_LOADING) || defined(MSWIN32) \
+                || defined(MSWINCE) || defined(CYGWIN32) || defined(PCR)
+              GC_register_dynamic_libraries();
+              if (GC_is_static_root(p))
+                return(p);
 #           endif
             goto fail;
         } else {