tce-load -i glib2-dev gobject-introspection-dev

cd json-glib-0.16.2

CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --disable-static

find . -name Makefile -type f -exec sed -i 's/-O2/ /g' {} \;

make
sudo make install

 Json-GLib - 0.16.2 (release)

 βΆ Prefix: /usr/local

 βΆ Debug level: minimum
 βΆ Compiler flags: -g -O2 

 βΆ API reference: no

 βΆ Enable test suite: yes
 βΆ Build introspection data: auto
 βΆ Enable test coverage: no