when compiling Python 3.7.0 setup.py is reporting that the ssl module failed to compile due to missing support for X509_VERIFY_PARAM_set1_host()  despite it existing in rsa.h for all versions of OpenSSL 1.1.0.

Could not build the ssl module!
Python requires an OpenSSL 1.0.2 or 1.1 compatible libssl with X509_VERIFY_PARAM_set1_host().
LibreSSL 2.6.4 and earlier do not provide the necessary APIs, https://github.com/libressl-portable/portable/issues/381

In addition _ssl.o does actually compile.

The issue appears that _ssl is appearing in "missing", "self.failed", "self.failed_on_import"



setup.py

    366         if any('_ssl' in l
    367                for l in (missing, self.failed, self.failed_on_import)):
    368             print()
    369             print("Could not build the ssl module!")
    370             print("Python requires an OpenSSL 1.0.2 or 1.1 compatible "
    371                   "libssl with X509_VERIFY_PARAM_set1_host().")
    372             print("LibreSSL 2.6.4 and earlier do not provide the necessary "
    373                   "APIs, https://github.com/libressl-portable/portable/issues/381")
    374             print()

I havent had time to go through the code yet to find out where the error is gettng flagged and if its a associated with how I have compiled openssl i.e. I need a compilation flag to enabled  X509_VERIFY_PARAM_set1_host() support.