#!/bin/sh

# build the dog library
g++ -fpic -c dog.cpp -o Dog.o
g++ -shared -o libDog.so Dog.o

# build the cat library
g++ -fpic -c cat.cpp -o Cat.o
g++ -shared -o libCat.so Cat.o


# build the client the code using the libary
g++ app.cpp -o app -ldl

# create soft link to the Dog library initially
ln -s -f libDog.so libAnimal.so

# Note: open separate terminal shell window, and type:
# ln -s -f libCat.so libAnimal.so       
# ln -s -f libDog.so libAnimal.so   
# type the above commands interchangeably to get the application
# to load the respective library  


# build tell the loader where to find the shared object libraries
export LD_LIBRARY_PATH=.
./app