freebsd-ports/databases/postgis/pkg-install

#!/bin/sh

msg(){
 echo "
  ======================= GEOS Support Notice ========================
  In order to use the GEOS support, you may need to specially compile
  your version of PostgreSQL to link the C++ runtime library.
  To do this, invoke the PostgreSQL Makefile script this way:

  on csh shell:

  setenv LDFLAGS -lstdc++
  make

  on sh or bash shell:

  export LDFLAGS=-lstdc++
  make

  The initial LDFLAGS variable is passed through to the Makefile and
  adds the C++ library to the linking stage.

  ====================================================================
"
sleep 10

}

case "$2" in
  "PRE-INSTALL")
	msg
  ;;
  "MESSAGE")
	msg
  ;;
esac