framework-symlink-move-test.sh

PREFIX=/tmp/myframework
mkdir -p $PREFIX/{old,new}
rm -f $PREFIX/{old,new}/*

cat > myframework.c <<EOF
int foo() {
	return 123;
}
EOF

cc -shared -install_name $PREFIX/old/libmyframework.dylib -o $PREFIX/old/libmyframework.dylib myframework.c

cat > myframework-client.c <<EOF
int main() {
	return foo();
}
EOF

# link at the old location
cc -o myframework-client -lmyframework -L$PREFIX/old myframework-client.c
otool -L myframework-client
# run
./myframework-client
echo $?

# move library and replace with a symlink
mv $PREFIX/{old,new}/libmyframework.dylib
ln -s $PREFIX/{new,old}/libmyframework.dylib

# run again
./myframework-client
echo $?

# link again at old location
cc -o myframework-client -lmyframework -L$PREFIX/old myframework-client.c
otool -L myframework-client

# run
./myframework-client
echo $?

# link again at new location
cc -o myframework-client -lmyframework -L$PREFIX/new myframework-client.c
otool -L myframework-client

# run again
./myframework-client
echo $?