--- /dev/null
+--- a/modules/md/md_crypt.c
++++ b/modules/md/md_crypt.c
+@@ -708,23 +708,23 @@ const char *md_cert_get_serial_number(const md_cert_t *cert, apr_pool_t *p)
+
+ int md_cert_is_valid_now(const md_cert_t *cert)
+ {
+- return ((X509_cmp_current_time(X509_get_notBefore(cert->x509)) < 0)
+- && (X509_cmp_current_time(X509_get_notAfter(cert->x509)) > 0));
++ return ((X509_cmp_current_time(X509_get0_notBefore(cert->x509)) < 0)
++ && (X509_cmp_current_time(X509_get0_notAfter(cert->x509)) > 0));
+ }
+
+ int md_cert_has_expired(const md_cert_t *cert)
+ {
+- return (X509_cmp_current_time(X509_get_notAfter(cert->x509)) <= 0);
++ return (X509_cmp_current_time(X509_get0_notAfter(cert->x509)) <= 0);
+ }
+
+ apr_time_t md_cert_get_not_after(const md_cert_t *cert)
+ {
+- return md_asn1_time_get(X509_get_notAfter(cert->x509));
++ return md_asn1_time_get(X509_get0_notAfter(cert->x509));
+ }
+
+ apr_time_t md_cert_get_not_before(const md_cert_t *cert)
+ {
+- return md_asn1_time_get(X509_get_notBefore(cert->x509));
++ return md_asn1_time_get(X509_get0_notBefore(cert->x509));
+ }
+
+ int md_cert_covers_domain(md_cert_t *cert, const char *domain_name)
+--- a/modules/ssl/ssl_engine_init.c
++++ b/modules/ssl/ssl_engine_init.c
+@@ -226,7 +226,7 @@ apr_status_t ssl_init_Module(apr_pool_t *p, apr_pool_t *plog,
+ apr_status_t rv;
+ apr_array_header_t *pphrases;
+
+- if (SSLeay() < MODSSL_LIBRARY_VERSION) {
++ if (OpenSSL_version_num() < MODSSL_LIBRARY_VERSION) {
+ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, base_server, APLOGNO(01882)
+ "Init: this version of mod_ssl was compiled against "
+ "a newer library (%s, version currently loaded is %s)"
+--- a/modules/ssl/ssl_engine_io.c
++++ b/modules/ssl/ssl_engine_io.c
+@@ -1255,9 +1255,9 @@ static apr_status_t ssl_io_filter_handshake(ssl_filter_ctx_t *filter_ctx)
+ if (dc->proxy->ssl_check_peer_expire != FALSE) {
+ if (!cert
+ || (X509_cmp_current_time(
+- X509_get_notBefore(cert)) >= 0)
++ X509_get0_notBefore(cert)) >= 0)
+ || (X509_cmp_current_time(
+- X509_get_notAfter(cert)) <= 0)) {
++ X509_get0_notAfter(cert)) <= 0)) {
+ proxy_ssl_check_peer_ok = FALSE;
+ ap_log_cerror(APLOG_MARK, APLOG_INFO, 0, c, APLOGNO(02004)
+ "SSL Proxy: Peer certificate is expired");
+--- a/modules/ssl/ssl_engine_log.c
++++ b/modules/ssl/ssl_engine_log.c
+@@ -161,10 +161,10 @@ static void ssl_log_cert_error(const char *file, int line, int level,
+ BIO_puts(bio, "(ERROR)");
+
+ BIO_puts(bio, " / notbefore: ");
+- ASN1_TIME_print(bio, X509_get_notBefore(cert));
++ ASN1_TIME_print(bio, X509_get0_notBefore(cert));
+
+ BIO_puts(bio, " / notafter: ");
+- ASN1_TIME_print(bio, X509_get_notAfter(cert));
++ ASN1_TIME_print(bio, X509_get0_notAfter(cert));
+
+ BIO_puts(bio, "]");
+
+--- a/modules/ssl/ssl_engine_vars.c
++++ b/modules/ssl/ssl_engine_vars.c
+@@ -490,13 +490,13 @@ static char *ssl_var_lookup_ssl_cert(apr_pool_t *p, request_rec *r, X509 *xs,
+ result = ssl_var_lookup_ssl_cert_serial(p, xs);
+ }
+ else if (strcEQ(var, "V_START")) {
+- result = ssl_var_lookup_ssl_cert_valid(p, X509_get_notBefore(xs));
++ result = ssl_var_lookup_ssl_cert_valid(p, X509_get0_notBefore(xs));
+ }
+ else if (strcEQ(var, "V_END")) {
+- result = ssl_var_lookup_ssl_cert_valid(p, X509_get_notAfter(xs));
++ result = ssl_var_lookup_ssl_cert_valid(p, X509_get0_notAfter(xs));
+ }
+ else if (strcEQ(var, "V_REMAIN")) {
+- result = ssl_var_lookup_ssl_cert_remain(p, X509_get_notAfter(xs));
++ result = ssl_var_lookup_ssl_cert_remain(p, X509_get0_notAfter(xs));
+ resdup = FALSE;
+ }
+ else if (*var && strcEQ(var+1, "_DN")) {
+--- a/modules/ssl/ssl_private.h
++++ b/modules/ssl/ssl_private.h
+@@ -98,6 +98,9 @@
+ #include <openssl/x509v3.h>
+ #include <openssl/x509_vfy.h>
+ #include <openssl/ocsp.h>
++#include <openssl/dh.h>
++#include <openssl/bn.h>
++#include <openssl/ui.h>
+
+ /* Avoid tripping over an engine build installed globally and detected
+ * when the user points at an explicit non-engine flavor of OpenSSL
+--- a/support/ab.c
++++ b/support/ab.c
+@@ -652,11 +652,11 @@ static void ssl_print_cert_info(BIO *bio, X509 *cert)
+
+ BIO_printf(bio, "Certificate version: %ld\n", X509_get_version(cert)+1);
+ BIO_printf(bio,"Valid from: ");
+- ASN1_UTCTIME_print(bio, X509_get_notBefore(cert));
++ ASN1_UTCTIME_print(bio, X509_get0_notBefore(cert));
+ BIO_printf(bio,"\n");
+
+ BIO_printf(bio,"Valid to : ");
+- ASN1_UTCTIME_print(bio, X509_get_notAfter(cert));
++ ASN1_UTCTIME_print(bio, X509_get0_notAfter(cert));
+ BIO_printf(bio,"\n");
+
+ pk = X509_get_pubkey(cert);
+@@ -2634,8 +2634,10 @@ int main(int argc, const char * const argv[])
+ CRYPTO_malloc_init();
+ #endif
+ #endif
++#if OPENSSL_VERSION_NUMBER < 0x10100000L
+ SSL_load_error_strings();
+ SSL_library_init();
++#endif
+ bio_out=BIO_new_fp(stdout,BIO_NOCLOSE);
+ bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
+