Invalid DLL file names on Windows OpenSSL 1.1.0 / 1.1.1

[quetzalcoatl]

Commit f9b817c handled only non-Windows part.

Currently, on Windows with newest OpenSSL, I get:

c:/rubies/Ruby26-x64/lib/ruby/gems/2.6.0/gems/ffi-1.12.2-x64-mingw32/lib/ffi/library.rb:145:in `block in ffi_lib': Could not open library 'libeay32'

Since 1.1.0 (see i.e. https://mta.openssl.org/pipermail/openssl-dev/2016-August/008351.html or issues in other projects like arvidn/libtorrent#1931) libeay32 and sseay32 doesn't exist - it seems that OpenSSL team apparently decided to rename them to libcrypto and libssl.

I'm not sure if that are the correct names though.
When I tried altering the openssl.rb to:

ffi_lib 'libcrypto', 'libssl'

then I get similar:

c:/rubies/Ruby26-x64/lib/ruby/gems/2.6.0/gems/ffi-1.12.2-x64-mingw32/lib/ffi/library.rb:145:in `block in ffi_lib': Could not open library 'libssl'

I can get it running only after changing that line to:

ffi_lib 'libcrypto-1_1-x64', 'libssl-1_1-x64'

I peeked those filenames in Ruby\bin\ruby_builtin_dlls
Unfortunatelly I can't help any further, I don't know why those suffixes were added and what logic controls them.