Fix warning from missing POSIX::setvbuf()

diff --git a/ext/IO/IO.xs b/ext/IO/IO.xs
index 8611b2d..5efbf24 100644 (file)
--- a/ext/IO/IO.xs
+++ b/ext/IO/IO.xs
@@ -268,8 +268,8 @@ setvbuf(handle, buf, type, size)
        int             type
        int             size
     CODE:
-#ifdef PERLIO_IS_STDIO
-#ifdef _IOFBF   /* Should be HAS_SETVBUF once Configure tests for that */
+/* Should check HAS_SETVBUF once Configure tests for that */
+#if defined(PERLIO_IS_STDIO) && defined(_IOFBF)
        if (handle)
            RETVAL = setvbuf(handle, buf, type, size);
        else {
@@ -277,10 +277,7 @@ setvbuf(handle, buf, type, size)
            errno = EINVAL;
        }
 #else
-           RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
-#endif /* _IOFBF */
-#else
-           not_here("IO::Handle::setvbuf");
+       RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
 #endif
     OUTPUT:
        RETVAL