Unable to build curl with wolfSSL using PetaLinux 2018.3

[psnguyen]

I am in the process of evaluating the performance of an application that acts both as an TLS server and TLS client. I was able to successfully build and install wolfSSL into my target system and my application is able to use wolfSSL to provide secure server functionality, however the provided "curl_%.bbappend" file is not sufficient to build curl with wolfSSL support.

I know that that "curl_%.bbappend" file is being picked up by the PetaLinux build because by default, curl is built with gnuTLS support, but with the "curl_%.bbappend" file in the project, curl is built without gnuTLS support. The issue is that it doesn't link to wolfSSL and ends up being built without HTTPs support at all.

Is there a way I can amend "curl_%.bbappend" so that curl is properly built and linked with wolfSSL support using PetaLinux 2018.3?