From 5efb91c2bff4714c1c6a0b8afca977bee07ded56 Mon Sep 17 00:00:00 2001 From: Petr Vorel Date: Wed, 3 Apr 2024 19:03:51 +0200 Subject: [PATCH] toolchain/helpers.mk: use int as main() return type in checks Although -Wmain-return-type is not considered as error (unlike -Wimplicit-int), but just a warning, let's fix it for the future. :1:1: warning: return type of 'main' is not 'int' [-Wmain-return-type] Signed-off-by: Petr Vorel Signed-off-by: Thomas Petazzoni (cherry picked from commit 3c9d06759051b3c23e3794f443af96d824aae239) Signed-off-by: Peter Korsgaard --- toolchain/helpers.mk | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/toolchain/helpers.mk b/toolchain/helpers.mk index e5c838c0af..839ee278d0 100644 --- a/toolchain/helpers.mk +++ b/toolchain/helpers.mk @@ -483,7 +483,7 @@ check_unusable_toolchain = \ # check_toolchain_ssp = \ __CROSS_CC=$(strip $1) ; \ - __HAS_SSP=`echo 'void main(){}' | $${__CROSS_CC} -Werror -fstack-protector -x c - -o $(BUILD_DIR)/.br-toolchain-test.tmp >/dev/null 2>&1 && echo y` ; \ + __HAS_SSP=`echo 'int main(){}' | $${__CROSS_CC} -Werror -fstack-protector -x c - -o $(BUILD_DIR)/.br-toolchain-test.tmp >/dev/null 2>&1 && echo y` ; \ if [ "$(BR2_TOOLCHAIN_HAS_SSP)" != "y" -a "$${__HAS_SSP}" = "y" ] ; then \ echo "SSP support available in this toolchain, please enable BR2_TOOLCHAIN_EXTERNAL_HAS_SSP" ; \ exit 1 ; \ @@ -494,7 +494,7 @@ check_toolchain_ssp = \ fi ; \ __SSP_OPTION=$(2); \ if [ -n "$${__SSP_OPTION}" ] ; then \ - if ! echo 'void main(){}' | $${__CROSS_CC} -Werror $${__SSP_OPTION} -x c - -o $(BUILD_DIR)/.br-toolchain-test.tmp >/dev/null 2>&1 ; then \ + if ! echo 'int main(){}' | $${__CROSS_CC} -Werror $${__SSP_OPTION} -x c - -o $(BUILD_DIR)/.br-toolchain-test.tmp >/dev/null 2>&1 ; then \ echo "SSP option $${__SSP_OPTION} not available in this toolchain, please select another SSP level" ; \ exit 1 ; \ fi; \