tce-load -i compiletc cmake

wget https://s3.amazonaws.com/json-c_releases/releases/json-c-0.15.tar.gz

cd json-c-0.15

mkdir build
cd build

cmake -LAH -DCMAKE_C_FLAGS_RELEASE="-march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" -DCMAKE_CXX_FLAGS_RELEASE="-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_STATIC_LIBS=OFF -DCMAKE_INSTALL_LIBDIR=lib ../

make [0m 18.38s]
sudo make install