curlpp doesn't work with libcurl NSS

[creekorful]

Hello there, hope you are doing fine!

As you may already know,
curlpp doesn't work when libcurl4-nss-dev is installed (see #91 for more details).
This bug has been reported on Debian here.

The following command reproduce it:

$ apt install -y libcurl4-nss-dev libcurlpp-dev build-essential

$ wget https://raw.githubusercontent.com/jpbarrette/curlpp/master/examples/example00.cpp

$ g++ example00.cpp -lcurl -lcurlpp

$ ./a.out
No URL set!

While a patch could be written to make sure curlpp doesn't use nss flavour (it works),
it could be better to identify the root of the problem and try to fix it if possible.

What do you think?

Cheers,