gentoo-overlay/dev-util/lttng-ust/files/lttng-ust-2.11.0-fno-common.patch

From 21a934df4c683e73e0a66a9afca33573fcf9d789 Mon Sep 17 00:00:00 2001
From: Michael Jeanson <mjeanson@efficios.com>
Date: Thu, 16 Jan 2020 10:59:14 -0500
Subject: [PATCH] Fix: build with -fno-common

GCC 10 will default to building with -fno-common, this inhibits the
linker from merging multiple tentative definitions of a symbol in an
archive. Keep only the declaration in the libustsnprintf.la convenience
library.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I8fb7c72811ce7e62f10342f55fcabeeabfdd4c67
---
 liblttng-ust-ctl/ustctl.c      | 2 --
 liblttng-ust-fd/lttng-ust-fd.c | 2 --
 2 files changed, 4 deletions(-)

diff --git a/liblttng-ust-ctl/ustctl.c b/liblttng-ust-ctl/ustctl.c
index 949ece17..c2b761a1 100644
--- a/liblttng-ust-ctl/ustctl.c
+++ b/liblttng-ust-ctl/ustctl.c
@@ -77,8 +77,6 @@ extern void lttng_ring_buffer_client_discard_exit(void);
 extern void lttng_ring_buffer_client_discard_rt_exit(void);
 extern void lttng_ring_buffer_metadata_client_exit(void);
 
-volatile enum ust_loglevel ust_loglevel;
-
 int ustctl_release_handle(int sock, int handle)
 {
 	struct ustcomm_ust_msg lum;
diff --git a/liblttng-ust-fd/lttng-ust-fd.c b/liblttng-ust-fd/lttng-ust-fd.c
index 863f0618..4818e02e 100644
--- a/liblttng-ust-fd/lttng-ust-fd.c
+++ b/liblttng-ust-fd/lttng-ust-fd.c
@@ -28,8 +28,6 @@
 #include <helper.h>
 #include "usterr-signal-safe.h"
 
-volatile enum ust_loglevel ust_loglevel;
-
 static int (*__lttng_ust_fd_plibc_close)(int fd);
 static int (*__lttng_ust_fd_plibc_fclose)(FILE *stream);
 
-- 
2.25.0