[MacPorts] #53964: py27-cryptography fails to build with libressl 2.5.3_0

[MacPorts]

#53964: py27-cryptography fails to build with libressl 2.5.3_0
----------------------+-------------------------------
 Reporter:  bK4gYuRo  |      Owner:
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:
 Keywords:            |       Port:  py27-cryptography
----------------------+-------------------------------
 Apparently, in libressl 2.5.3 the following macros are defined:


 {{{
 /* Host, email and IP check errors */
 #define         X509_V_ERR_HOSTNAME_MISMATCH                    62
 #define         X509_V_ERR_EMAIL_MISMATCH                       63
 #define         X509_V_ERR_IP_ADDRESS_MISMATCH                  64

 }}}

 This conflicts with last 3 lines in this block in _openssl.c in
 py27-cryptography:


 {{{
 /* OpenSSL 1.0.2beta2+ verification error codes */
 #if CRYPTOGRAPHY_OPENSSL_102BETA2_OR_GREATER &&
 !defined(LIBRESSL_VERSION_NUMBER)
 static const long Cryptography_HAS_102_VERIFICATION_ERROR_CODES = 1;
 #else
 static const long Cryptography_HAS_102_VERIFICATION_ERROR_CODES = 0;
 static const long X509_V_ERR_SUITE_B_INVALID_VERSION = 0;
 static const long X509_V_ERR_SUITE_B_INVALID_ALGORITHM = 0;
 static const long X509_V_ERR_SUITE_B_INVALID_CURVE = 0;
 static const long X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM = 0;
 static const long X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED = 0;
 static const long X509_V_ERR_SUITE_B_CANNOT_SIGN_P_384_WITH_P_256 = 0;
 static const long X509_V_ERR_HOSTNAME_MISMATCH = 0;
 static const long X509_V_ERR_EMAIL_MISMATCH = 0;
 static const long X509_V_ERR_IP_ADDRESS_MISMATCH = 0;
 #endif

 }}}

 If I comment out these 3 lines in _openssl.c, it compiles, but I am not
 sure if it is the right fix.

 Log is attached

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Ticket URL: <https://trac.macports.org/ticket/53964>
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