1 files changed, 7 insertions, 0 deletions
diff --git a/Modules/_ssl.c b/Modules/_ssl.c
index 380dd1b72d..c5eec7eded 100644
--- a/Modules/_ssl.c
+++ b/Modules/_ssl.c
@@ -64,6 +64,13 @@ static PySocketModule_APIObject PySocketModule;
 #include "openssl/rand.h"
 #include "openssl/bio.h"
 
+/* Set HAVE_X509_VERIFY_PARAM_SET1_HOST for non-autoconf builds */
+#ifndef HAVE_X509_VERIFY_PARAM_SET1_HOST
+#  if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER > 0x1000200fL
+#    define HAVE_X509_VERIFY_PARAM_SET1_HOST
+#  endif
+#endif
+
 /* SSL error object */
 static PyObject *PySSLErrorObject;
 static PyObject *PySSLCertVerificationErrorObject;