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-rw-r--r--include/termios.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/termios.h b/include/termios.h
index fad51f8385..1a36e226b8 100644
--- a/include/termios.h
+++ b/include/termios.h
@@ -4,6 +4,8 @@
 #ifndef _ISOMAC
 /* Now define the internal interfaces.  */
 extern int __tcgetattr (int __fd, struct termios *__termios_p);
+extern int __tcsetattr (int __fd, int __optional_actions,
+			const struct termios *__termios_p);
 
 extern int __libc_tcdrain (int __fd);