I am developing an application in 64bit using rpclib.
I am trying to compile rpclib in 64 biit using below steps, but I believe the library with below steps is compiled for 32 bit architecture.

git clone git@github.com:rpclib/rpclib.git
cd rpclib
mkdir build
cd build
cmake ..
cmake --build .

I am sorry I don't have much experience in using cmake utility.

Is there a way to compile rpclib in 64bit?