openwrt/scripts/check-toolchain-clean.sh
Felix Fietkau db34b93331 toolchain: add a version that can be bumped to force toolchain/target rebuild
This can be used to ensure that the compiled code is up to date, when
something important changes in the toolchain.
A recent example of this is the gcc 11 fix for a code miscompilation issue

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-11-16 22:02:45 +01:00

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#!/bin/sh
eval `grep CONFIG_GCC_VERSION .config`
CONFIG_TOOLCHAIN_BUILD_VER="$CONFIG_GCC_VERSION-$(cat toolchain/build_version)"
touch .toolchain_build_ver
[ "$CONFIG_TOOLCHAIN_BUILD_VER" = "$(cat .toolchain_build_ver)" ] && exit 0
echo "Toolchain build version changed, running make targetclean"
make targetclean
echo "$CONFIG_TOOLCHAIN_BUILD_VER" > .toolchain_build_ver
exit 0