Older qt5 versions: preparing for openssl 1.1 migration

[yan12125 (Chih-Hsuan Yen)]

I'm working on migrating the openssl port to the latest 1.1.x version (1). As qt < 5.10 are not compatible with openssl 1.1 (2), please either making older qt5 versions depending on openssl10 or patch these ports to build with openssl 1.1.x.

(1) ​https://github.com/macports/macports-ports/pull/3822

(2) ​https://wiki.qt.io/New_Features_in_Qt_5.10

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

In c0c7732d0a187e539b5c3e3a40a06da5a44dbb0d/macports-ports (master):

qt5*: use compatibility OpenSSL for Qt < 5.10

Fixes #58204

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

Thank you for pointing this out.

[yan12125 (Chih-Hsuan Yen)]

Thank you for the fast fix!

[RJVB (René Bertin)]

I have already looked into and adapted Debian patch adding OSSL 1.1 support to Qt4 (tested only against OSSL 1.0.x for now). I'll try to do the same with Qt 5 (and ask on the Qt ML!); hopefully this code is well preserved enough that the patch is easy to rebase. To my knowledge qt 5.9 is still in LTS so a fix might even be upstreamable.