Curl error in Raspberry Pi

Folks,
Trying to install Gpredict on to my Raspberry Pi 3 but get an error after ./configure
configure: error: Gpredict requires libcurl-dev 7.19 or later
I thought it was installed. Any ideas on how to install to match this error?
Thanks in advance.
Ed

When you compile from source you also need the “xyz-dev” packages as well, i.e.

sudo apt install libcurl4-openssl-dev