ust-fd: Add close_range declaration

Old libc headers do not contain a declaration of close_range(). Emit our
own declaration to prevent compiler warnings.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: If6ca8193895efbb6ce1ba46e092939b8099bcff6

diff --git a/liblttng-ust-fd/lttng-ust-fd.c b/liblttng-ust-fd/lttng-ust-fd.c
index ffa72903900ef7b7f675bd983016b395e0b9c0dc..5a422103511d60c1221adae2aa8d519a30783153 100644 (file)
--- a/liblttng-ust-fd/lttng-ust-fd.c
+++ b/liblttng-ust-fd/lttng-ust-fd.c
@@ -158,6 +158,9 @@ int fclose(FILE *stream)
                        __lttng_ust_fd_plibc_fclose);
 }
 
+/* Old libc headers don't contain a close_range() declaration. */
+int close_range(unsigned int first, unsigned int last, int flags);
+
 /*
  * Override the libc close_range() symbol with our own, allowing
  * applications to close arbitrary file descriptors. If the fd is owned