package/bluez-alsa: add patch for fixing build failure with gcc 10

A fix is available upstream but does not apply on the used version by
buildroot.

Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/bluez-alsa/0001-fix-build-issue-with-gcc-10.patch

@@ -0,0 +1,118 @@
+From 72324e9415d2757a5f0f028865f841de70e1d0c4 Mon Sep 17 00:00:00 2001
+From: Heiko Thiery <heiko.thiery@gmail.com>
+Date: Sun, 12 Jul 2020 14:18:09 +0200
+Subject: [PATCH] fix build issue with gcc 10
+
+This patch is created on top of tagged version v2.1.0.
+An upstream fix commit [1] for this issue is already in upstream master but
+does not apply on current used version in buildroot.
+
+[1] https://github.com/Arkq/bluez-alsa/commit/30a23dd7ce9b00c702fa48545f6b03038f9e17c6
+
+Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
+---
+ src/bluealsa-dbus.c  | 4 ++++
+ src/bluealsa-iface.c | 2 ++
+ src/bluealsa-iface.h | 4 ----
+ src/bluealsa.c       | 3 +++
+ src/bluez-a2dp.h     | 3 ---
+ src/bluez-iface.h    | 3 ---
+ src/bluez.c          | 3 +++
+ 7 files changed, 12 insertions(+), 10 deletions(-)
+
+diff --git a/src/bluealsa-dbus.c b/src/bluealsa-dbus.c
+index 5e748e3..4c9cd3d 100644
+--- a/src/bluealsa-dbus.c
++++ b/src/bluealsa-dbus.c
+@@ -33,6 +33,10 @@
+ #include "shared/defs.h"
+ #include "shared/log.h"
+ 
++extern const GDBusInterfaceInfo bluealsa_iface_manager;
++extern const GDBusInterfaceInfo bluealsa_iface_pcm;
++extern const GDBusInterfaceInfo bluealsa_iface_rfcomm;
++
+ static GVariant *ba_variant_new_device_path(const struct ba_device *d) {
+ 	return g_variant_new_object_path(d->bluez_dbus_path);
+ }
+diff --git a/src/bluealsa-iface.c b/src/bluealsa-iface.c
+index 71810c7..55b79c9 100644
+--- a/src/bluealsa-iface.c
++++ b/src/bluealsa-iface.c
+@@ -10,6 +10,8 @@
+ 
+ #include "bluealsa-iface.h"
+ 
++#define BLUEALAS_IFACE_C
++
+ static const GDBusArgInfo arg_codec = {
+ 	-1, "codec", "q", NULL
+ };
+diff --git a/src/bluealsa-iface.h b/src/bluealsa-iface.h
+index 262fb76..4f3e85b 100644
+--- a/src/bluealsa-iface.h
++++ b/src/bluealsa-iface.h
+@@ -32,8 +32,4 @@
+ #define BLUEALSA_RFCOMM_MODE_HSP_AG "HSP-AG"
+ #define BLUEALSA_RFCOMM_MODE_HSP_HS "HSP-HS"
+ 
+-const GDBusInterfaceInfo bluealsa_iface_manager;
+-const GDBusInterfaceInfo bluealsa_iface_pcm;
+-const GDBusInterfaceInfo bluealsa_iface_rfcomm;
+-
+ #endif
+diff --git a/src/bluealsa.c b/src/bluealsa.c
+index 929f9ed..690c407 100644
+--- a/src/bluealsa.c
++++ b/src/bluealsa.c
+@@ -20,6 +20,9 @@
+ #include "bluez-a2dp.h"
+ #include "hfp.h"
+ 
++/* NULL-terminated list of available A2DP codecs */
++extern const struct bluez_a2dp_codec **bluez_a2dp_codecs;
++
+ /* Initialize global configuration variable. */
+ struct ba_config config = {
+ 
+diff --git a/src/bluez-a2dp.h b/src/bluez-a2dp.h
+index 7c0e33b..127dbd9 100644
+--- a/src/bluez-a2dp.h
++++ b/src/bluez-a2dp.h
+@@ -57,7 +57,4 @@ struct bluez_a2dp_codec {
+ 	size_t samplings_size;
+ };
+ 
+-/* NULL-terminated list of available A2DP codecs */
+-const struct bluez_a2dp_codec **bluez_a2dp_codecs;
+-
+ #endif
+diff --git a/src/bluez-iface.h b/src/bluez-iface.h
+index 34269c5..250267e 100644
+--- a/src/bluez-iface.h
++++ b/src/bluez-iface.h
+@@ -27,7 +27,4 @@
+ #define BLUEZ_TRANSPORT_STATE_PENDING "pending"
+ #define BLUEZ_TRANSPORT_STATE_ACTIVE  "active"
+ 
+-const GDBusInterfaceInfo bluez_iface_endpoint;
+-const GDBusInterfaceInfo bluez_iface_profile;
+-
+ #endif
+diff --git a/src/bluez.c b/src/bluez.c
+index cfdbff8..190101e 100644
+--- a/src/bluez.c
++++ b/src/bluez.c
+@@ -45,6 +45,9 @@
+ # define G_DBUS_ERROR_UNKNOWN_OBJECT G_DBUS_ERROR_FAILED
+ #endif
+ 
++extern const GDBusInterfaceInfo bluez_iface_endpoint;
++extern const GDBusInterfaceInfo bluez_iface_profile;
++
+ /**
+  * Structure describing registered D-Bus object. */
+ struct dbus_object_data {
+-- 
+2.20.1
+