From aeb38bbdce427edacd0fa40069290063cb4dfe19 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Mon, 23 Feb 2015 11:32:04 -0500
Subject: [PATCH] add another unused-var marker in backtrace.c for 14988

---
 changes/bug14988       | 4 ++++
 src/common/backtrace.c | 1 +
 2 files changed, 5 insertions(+)
 create mode 100644 changes/bug14988

diff --git a/changes/bug14988 b/changes/bug14988
new file mode 100644
index 000000000..67dc96e44
--- /dev/null
+++ b/changes/bug14988
@@ -0,0 +1,4 @@
+  o Minor bugfixes (compilation):
+    - Fix a compilation warning on s390. Fixes bug 14988; bugfix on
+      0.2.5.2-alpha.
+
diff --git a/src/common/backtrace.c b/src/common/backtrace.c
index 3a073a8ff..2a918ddd0 100644
--- a/src/common/backtrace.c
+++ b/src/common/backtrace.c
@@ -80,6 +80,7 @@ clean_backtrace(void **stack, int depth, const ucontext_t *ctx)
 #else
   (void) depth;
   (void) ctx;
+  (void) stack;
 #endif
 }