[PATCH v2 3/3] selftests/nolibc: test against -Wwrite-strings

[Thomas Weißschuh]

Users may use this warning when building their own applications.
Make sure that nolibc does not trigger any such warnings.

Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
Acked-by: Willy Tarreau <w@xxxxxx>
---
 tools/testing/selftests/nolibc/Makefile.include | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/nolibc/Makefile.include b/tools/testing/selftests/nolibc/Makefile.include
index 96fe2bc2191e..c30ca3a9ef14 100644
--- a/tools/testing/selftests/nolibc/Makefile.include
+++ b/tools/testing/selftests/nolibc/Makefile.include
@@ -6,7 +6,7 @@ _CFLAGS_STACKPROTECTOR ?= $(call try-run, \
 	$(__CFLAGS_STACKPROTECTOR))
 _CFLAGS_SANITIZER ?= $(call cc-option,-fsanitize=undefined -fsanitize-trap=all)
 CFLAGS_NOLIBC_TEST  ?= -Os -fno-ident -fno-asynchronous-unwind-tables -std=c89 \
-		-W -Wall -Wextra -Wundef \
+		-W -Wall -Wextra -Wundef -Wwrite-strings \
 		$(call cc-option,-fno-stack-protector) $(call cc-option,-Wmissing-prototypes) \
 		$(_CFLAGS_STACKPROTECTOR) $(_CFLAGS_SANITIZER)
 

-- 
2.54.0