@@ -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; \
Although -Wmain-return-type is not considered as error (unlike -Wimplicit-int), but just a warning, let's fix it for the future. <stdin>:1:1: warning: return type of 'main' is not 'int' [-Wmain-return-type] Signed-off-by: Petr Vorel <petr.vorel@gmail.com> --- Based on the fix from Robert https://lore.kernel.org/buildroot/20240403121807.2087547-1-robimarko@gmail.com/ NOTE: I also updated config project ML to get support/gnuconfig/config.guess fixed. Kind regards, Petr toolchain/helpers.mk | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)