+export DEBOOTSTRAP=debootstrap
+
+handle_crosscompile()
+{
+ if [ "`uname -m`" != 'aarch64' ]; then
+ export ARCH=arm64
+ export CROSS_COMPILE=aarch64-linux-gnu-
+ export DEBOOTSTRAP=qemu-debootstrap
+ sudo apt install -y libc6-dev-arm64-cross
+ fi
+}
+
+build_linux()
+{
+(
+ handle_crosscompile
+ test -d linux || git clone https://github.com/AsahiLinux/linux
+ cd linux
+ git fetch
+ git reset --hard asahi-5.19-3; git clean -f -x -d &> /dev/null
+ curl -s https://tg.st/u/40c9642c7569c52189f84621316fc9149979ee65.patch | git am -
+ curl -s https://tg.st/u/0001-4k-iommu-patch-2022-07-20.patch | git am -
+ curl -s https://tg.st/u/0001-jeys-patch.patch | git am -
+ curl -s https://tg.st/u/0001-jeys-2nd-patch.patch | git am -
+ cat ../../config-4k.txt > .config
+ make olddefconfig
+ make -j `nproc` V=0 bindeb-pkg > /dev/null
+)
+}
+