This is an interim solution for maintaining a recent version of OpenSSL for AmigaOS. The real (and not AmigaOS 4.x specific) solution is developed in form of AmiSSL at https://github.com/jens-maus/amissl.
Simply invoke the makefile.
Patches are maintained as in the adtools projects at https://github.com/sba1/adtools. In fact, a checkout of this repository is done as part of the makefile to download the current version of the scripts.