tce-load -i compiletc boost-1.65-dev

https://libopenraw.freedesktop.org/download/exempi-2.5.2.tar.bz2

cd exempi-2.5.2

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

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

make [3m 17.94s]
sudo make install

Defines:

   EXEMPI_PLATFORM_DEF  = UNIX_ENV
   CPPFLAGS             = 
   LDFLAGS              = 
   Thread Local Storage = __thread
   Run unit test        = yes

eog and tracker-miners use exempi