gcc (Ubuntu 5.4.0-6ubuntu1~16.04.11) 5.4.0 20160609
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

complains:

> src/debug.c: In function ‘ha_panic’:
> src/debug.c:162:2: warning: ignoring return value of ‘write’, declared with 
> attribute warn_unused_result [-Wunused-result]
>  (void) write(2, trash.area, trash.data);
>    ^
---
 src/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/debug.c b/src/debug.c
index fd760faac..059bc6b97 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -159,7 +159,7 @@ void ha_panic()
        chunk_reset(&trash);
        chunk_appendf(&trash, "Thread %u is about to kill the process.\n", tid 
+ 1);
        ha_thread_dump_all_to_trash();
-       write(2, trash.area, trash.data);
+       shut_your_big_mouth_gcc(write(2, trash.area, trash.data));
        for (;;)
                abort();
 }
-- 
2.21.0


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