tce-load -i compiletc cmake ninja brotli-dev highway-dev lcms2-dev libjpeg-turbo-dev gliflib-dev libpng-dev

wget https://github.com/libjxl/libjxl/archive/v0.11.1/libjxl-0.11.1.tar.gz

cd libjxl-0.11.1

mkdir build
cd build

cmake -LAH -DCMAKE_C_FLAGS_RELEASE="-flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" -DCMAKE_CXX_FLAGS_RELEASE="-flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe -fno-exceptions -fno-rtti" -DCMAKE_INSTALL_PREFIX=/usr/local -DCMAKE_BUILD_TYPE=Release -DCMAKE_VERBOSE_MAKEFILE=TRUE -DBUILD_TESTING=OFF -DBUILD_SHARED_LIBS=ON -DJPEGXL_ENABLE_SKCMS=OFF -DJPEGXL_ENABLE_SJPEG=OFF -G Ninja ../

[-fno-rtti fails]

ninja [5m 28.12s]
sudo ninja install