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toolchain/helpers.mk: use int as main() return type in checks

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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>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 3c9d067590)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Petr Vorel 2024-04-03 19:03:51 +02:00 committed by Peter Korsgaard
parent 2ebf2a85c0
commit 5efb91c2bf
1 changed files with 2 additions and 2 deletions
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4
toolchain/helpers.mk
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@ -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; \