POSTIN

/bin/sh

if [ -x /usr/bin/rebuild-gcj-db ]; then /usr/bin/rebuild-gcj-db || true ; fi 

/usr/sbin/update-alternatives --install /usr/bin/antlr \
  antlr /usr/bin/antlr-java 10

POSTUN

/bin/sh

if [ $1 -eq 0 ] ; then
  /usr/sbin/update-alternatives --remove antlr /usr/bin/antlr-java
fi
if [ -x /usr/bin/rebuild-gcj-db ]; then /usr/bin/rebuild-gcj-db || true ; fi