export CFLAGS="-g -march=i486 -mtune=i686 -Os -pipe"
export CXXFLAGS="-g -march=i486 -mtune=i686 -Os -pipe"

load gmp, mpfr, ppl extensions

cloog-ppl-0.15.3
----------------
./configure --prefix=/usr/local --with-bits=gmp --with-ppl=/usr/local --with-gmp=/usr/local

make
sudo make install-strip