Installing curl.h library [duplicate] John Castro | June 01, 2026 Could you help me install curl.h library? 5 1 Answer apt-get install libcurl4-gnutls-devorapt-get install libcurl4-openssl-devorapt-get install libcurl4-nss-devdepending on whether you want to use gnutls, openssl or nss for SSL. 7