1 files changed, 4 insertions, 1 deletions
diff --git a/io.c b/io.c
index 9900118818..81067126d0 100644
--- a/io.c
+++ b/io.c
@@ -8591,7 +8591,10 @@ rb_io_advise(int argc, VALUE *argv, VALUE io)
     off = NIL_P(offset) ? 0 : NUM2OFFT(offset);
     l   = NIL_P(len)    ? 0 : NUM2OFFT(len);
 
-#ifdef HAVE_POSIX_FADVISE
+    /* AIX currently does not support a 32-bit call to posix_fadvise()
+     * if _LARGE_FILES is defined.
+     */
+#if defined(HAVE_POSIX_FADVISE) && !(defined(_AIX) && defined(_LARGE_FILES) && !defined(_ARCH_PPC64))
     return do_io_advise(fptr, advice, off, l);
 #else
     ((void)off, (void)l);	/* Ignore all hint */