[DRE-maint] Bug#900156: puma: FTBFS against openssl 1.1.1

[Sebastian Andrzej Siewior]

Source: puma
Version: 3.11.3-1
Severity: important
User: pkg-openssl-devel at lists.alioth.debian.org
Usertags: openssl-1.1.1

The new openssl 1.1.1 is currently in experimental [0]. This package
failed to build against this new package [1] while it built fine against
the openssl version currently in unstable [2].
Could you please have a look?

The Error
|TestPumaServerSSLClient#test_verify_client_cert = 
|E: Build killed with signal TERM after 150 minutes of inactivity

might be due to the fact that once TLS1.3 is enabled, the SSL_read()
function might return error SSL_ERROR_WANT_READ asking it for a retry.
An "automatic" fix to this behaviour is currently discussed upstream [3]
but it has been always part of the doccumentation - it just hardly
occured before.

[0] https://lists.debian.org/msgid-search/20180501211400.GA21460@roeckx.be
[1] https://breakpoint.cc/openssl-rebuild/2018-05-03-rebuild-openssl1.1.1-pre6/attempted/puma_3.11.3-1_amd64-2018-05-01T23%3A16%3A10Z
[2] https://breakpoint.cc/openssl-rebuild/2018-05-03-rebuild-openssl1.1.1-pre6/successful/puma_3.11.3-1_amd64-2018-05-02T18%3A47%3A34Z
[3] https://github.com/openssl/openssl/issues/6234

Sebastian