Clarify comment a bit

1 files changed, 2 insertions, 1 deletions

diff --git a/include/string.h b/include/string.h
index 9d40e77..5623ffe 100644
--- a/include/string.h
+++ b/include/string.h
@@ -13,7 +13,8 @@ __fortify_memcpy(void *dest, const void *src, size_t n)
         char *d = dest;
         const char *s = src;
 
-        /* trap if pointers are overlapping but not if dest == src */
+        /* trap if pointers are overlapping but not if dest == src.
+         * gcc seems to like to generate code that relies on dest == src */
         if ((d < s && d + n > s) ||
             (s < d && s + n > d))
                 __builtin_trap();