BUILD: debug: fix build warning by consuming the write() result
When writing commit a8459b28c ("MINOR: debug: create
ha_backtrace_to_stderr() to dump an instant backtrace") I just forgot
that some distros are a bit extremist about the syscall return values.
src/debug.c: In function `ha_backtrace_to_stderr':
src/debug.c:147:3: error: ignoring return value of `write', declared with attribute warn_unused_result [-Werror=unused-result]
write(2, b.area, b.data);
^~~~~~~~~~~~~~~~~~~~~~~~
CC src/h1_htx.o
Let's apply the usual tricks to shut them up. No backport is needed.
diff --git a/src/debug.c b/src/debug.c
index fc2de92..bf64f19 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -144,7 +144,7 @@
ha_dump_backtrace(&b, " ", 4);
if (b.data)
- write(2, b.area, b.data);
+ DISGUISE(write(2, b.area, b.data));
}
/* Dumps to the buffer some known information for the desired thread, and