py27-cryptography fails to build with libressl-devel 2.7.2

[bK4gYuRo]

Errors start with this

:info:build /opt/local/include/openssl/x509.h:919:6: note: previous declaration is here
:info:build void X509_get0_signature(const ASN1_BIT_STRING **psig,
:info:build      ^
:info:build build/temp.macosx-10.13-x86_64-2.7/_openssl.c:2472:7: error: redefinition of 'X509_VERIFY_PARAM_set1_host' as different kind of symbol
:info:build int (*X509_VERIFY_PARAM_set1_host)(X509_VERIFY_PARAM *, const char *,
:info:build       ^
:info:build /opt/local/include/openssl/x509_vfy.h:564:5: note: previous definition is here
:info:build int X509_VERIFY_PARAM_set1_host(X509_VERIFY_PARAM *param, const char *name,
:info:build     ^
:info:build build/temp.macosx-10.13-x86_64-2.7/_openssl.c:2474:7: error: redefinition of 'X509_VERIFY_PARAM_set1_email' as different kind of symbol

and many more follow

[pmetzger (Perry E. Metzger)]

Do py27-cryptography's upstream maintainers claim to support libressl? If not, why should this be a supported configuration for MacPorts?

[bK4gYuRo]

What makes you think it is not supported? libevent is a dependency of tmux, and tmux (and libevent) builds and works fine on OpenBSD which has libressl only. If, following your logic, it's not supported, then it would not work on OpenBSD

[bK4gYuRo]

Sorry, the comment above was meant for ticket 56400

[bK4gYuRo]

Regarding upstream support for libressl in py-cryptography, please see this pull request: ​https://github.com/pyca/cryptography/pull/4169

[bK4gYuRo]

And this patch is specifically for libressl 2.7.2: ​https://github.com/pyca/cryptography/pull/4210

I wonder how we can get it into macports