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-rw-r--r--newlib/newlib.hin3
1 files changed, 3 insertions, 0 deletions
diff --git a/newlib/newlib.hin b/newlib/newlib.hin
index 030d51419..c6637cbd4 100644
--- a/newlib/newlib.hin
+++ b/newlib/newlib.hin
@@ -67,6 +67,9 @@
/* Define if wide char orientation is supported. */
#undef _WIDE_ORIENT
+/* Define if unbuffered stream file optimization is supported. */
+#undef _UNBUF_STREAM_OPT
+
/*
* Iconv encodings enabled ("to" direction)
*/