POSTIN

/bin/sh

update-alternatives --install /usr/bin/gcc gcc /usr/bin/colorgcc-3.0.4 15
update-alternatives --install /usr/bin/g++ g++ /usr/bin/colorg++-3.0.4 15 \
                      --slave /usr/bin/c++ c++ /usr/bin/colorg++-3.0.4

POSTUN

/bin/sh

[ $1 = 0 ] || exit 0
update-alternatives --remove gcc /usr/bin/colorgcc-3.0.4
update-alternatives --remove g++ /usr/bin/colorg++-3.0.4