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-rw-r--r--termios/termios.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/termios/termios.h b/termios/termios.h
index c42c62cd87..762e7511cd 100644
--- a/termios/termios.h
+++ b/termios/termios.h
@@ -95,7 +95,7 @@ extern int tcflush (int __fd, int __queue_selector) __THROW;
extern int tcflow (int __fd, int __action) __THROW;
-#ifdef __USE_UNIX98
+#if defined __USE_UNIX98 || defined __USE_XOPEN2K8
/* Get process group ID for session leader for controlling terminal FD. */
extern __pid_t tcgetsid (int __fd) __THROW;
#endif