openssl - could not find the C header files

[Ryan Schmidt]

It's probably not related to your current problem, but I wanted to point out:

On Oct 17, 2015, at 1:24 PM, Frank Röhm wrote:

> openssl is installed:
> 
> MacBook:dports root# port list installed
> ...
> openssl                        @1.0.2d         devel/openssl
> …

The command you want is "port installed".

https://trac.macports.org/wiki/FAQ#portlist

"port list" is different. It tells you what version is available, which is not necessarily the version you have installed.