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-rw-r--r--bits/termios.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/bits/termios.h b/bits/termios.h
index 4dc0fab..293d0a6 100644
--- a/bits/termios.h
+++ b/bits/termios.h
@@ -135,8 +135,10 @@ struct termios
/* Output modes. */
tcflag_t c_oflag;
#define OPOST (1 << 0) /* Perform output processing. */
-#ifdef __USE_BSD
+#if defined __USE_BSD || defined __USE_XOPEN
# define ONLCR (1 << 1) /* Map NL to CR-NL on output. */
+#endif
+#ifdef __USE_BSD
# define OXTABS TAB3 /* Expand tabs to spaces. */
# define ONOEOT (1 << 3) /* Discard EOT (^D) on output. */
#endif