From a51df1fd30a1a5bdf313615afdb375e71fbcdb12 Mon Sep 17 00:00:00 2001
From: Alexandre Abadie <alexandre.abadie@inria.fr>
Date: Tue, 9 Feb 2021 17:09:33 +0100
Subject: [PATCH 1/2] pkg/cn-cbor: ignore return local address warning

This warning is triggered with gcc 10 on riscv and make the build to fail
---
 pkg/cn-cbor/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkg/cn-cbor/Makefile b/pkg/cn-cbor/Makefile
index 2d9bac4869..0f82a08045 100644
--- a/pkg/cn-cbor/Makefile
+++ b/pkg/cn-cbor/Makefile
@@ -7,6 +7,7 @@ include $(RIOTBASE)/pkg/pkg.mk
 
 # Enable code forcing aligned reads
 CFLAGS += -DCBOR_ALIGN_READS
+CFLAGS += -Wno-return-local-addr
 
 all:
 	"$(MAKE)" -C $(PKG_SOURCE_DIR)/src -f $(RIOTBASE)/Makefile.base MODULE=$(PKG_NAME)

From f515036c914b563fbe68e11b92459d50b9597643 Mon Sep 17 00:00:00 2001
From: Alexandre Abadie <alexandre.abadie@inria.fr>
Date: Tue, 9 Feb 2021 17:10:21 +0100
Subject: [PATCH 2/2] tests/ssp: silence array-bounds warning if present

This warning is triggered on gcc 10 with riscv and makes the build to fail
---
 tests/ssp/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/ssp/Makefile b/tests/ssp/Makefile
index 8c13adedf6..9e141f5c99 100644
--- a/tests/ssp/Makefile
+++ b/tests/ssp/Makefile
@@ -11,3 +11,7 @@ include $(RIOTBASE)/Makefile.include
 ifneq (,$(shell $(CC) --help=warnings | grep '\-Wstringop-overflow='))
   CFLAGS += -Wstringop-overflow=0
 endif
+
+ifneq (,$(shell $(CC) --help=warnings | grep '\-Warray-bounds='))
+  CFLAGS += -Warray-bounds=0
+endif