POSTIN

/bin/sh

update-alternatives --install /usr/bin/gcj gcj /usr/bin/gcj-3.2.2 10
[ -e /usr/bin/gcj ] || update-alternatives --auto gcj
# Remove binaries if not alternativeszificated yet
[ ! -L /usr/bin/javac ] && /bin/rm -f /usr/bin/javac
update-alternatives --install /usr/bin/javac javac /usr/bin/gcj-javac-3.2.2 20
update-alternatives --install /usr/bin/jdk-config jdk-config /usr/bin/gcj-jdk-config-3.2.2 20

POSTUN

/bin/sh

if [ ! -f /usr/bin/gcj-3.2.2 ]; then
  update-alternatives --remove gcj /usr/bin/gcj-3.2.2
fi
if [ ! -f /usr/bin/gcj-javac-3.2.2 ]; then
  update-alternatives --remove javac /usr/bin/gcj-javac-3.2.2
fi
if [ ! -f /usr/bin/gcj-jdk-config-3.2.2 ]; then
  update-alternatives --remove jdk-config /usr/bin/gcj-jdk-config-3.2.2
fi