tce-load -i 

cd icu (icu4c-52_1)

cd source

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

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

make
make install