[openssl-project] cppflags, cflags and ldflags

[Andy Polyakov]

>> Note: this mail follows the discussion on github started here:
>> https://github.com/openssl/openssl/pull/5742#discussion_r176919954

In the light of the new evidence presented in
https://github.com/openssl/openssl/pull/5745 one can argue in favour of
splitting -pthread flag to cppflags and ldflags. Yes, but I'd still be
reluctant to formulating it like that. As implied I'm kind of arguing
against too many options/variables/joints and call rather for
simplification than increased complexity. I feel that there are more
efficient ways to cover corner/odd-ball places...