diff '--color=auto' -urN cpp-httplib-0.16.1.orig/httplib.h cpp-httplib-0.16.1/httplib.h
--- cpp-httplib-0.16.1.orig/httplib.h	2024-08-07 18:39:18.623564657 +0200
+++ cpp-httplib-0.16.1/httplib.h	2024-08-07 18:43:50.987584273 +0200
@@ -269,7 +269,7 @@
 #include <iostream>
 #include <sstream>
 
-#if OPENSSL_VERSION_NUMBER < 0x30000000L
+#if OPENSSL_VERSION_NUMBER < 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
 #error Sorry, OpenSSL versions prior to 3.0.0 are not supported
 #endif
 
@@ -727,8 +727,10 @@
         fn();
       }
 
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
+#if defined(CPPHTTPLIB_OPENSSL_SUPPORT) && !defined(LIBRESSL_VERSION_NUMBER)
       OPENSSL_thread_stop();
+#else
+      ERR_remove_state(0);
 #endif
     }
 
@@ -9078,7 +9080,7 @@
             return false;
           }
 
-          auto server_cert = SSL_get1_peer_certificate(ssl2);
+          auto server_cert = SSL_get_peer_certificate(ssl2);
 
           if (server_cert == nullptr) {
             error = Error::SSLServerVerification;