Co-authored-by: Viktor Szakats
Closes #16434
curl_add_if("HTTP2" USE_NGHTTP2)
curl_add_if("HTTP3" USE_NGTCP2 OR USE_QUICHE OR USE_MSH3 OR USE_OPENSSL_QUIC)
curl_add_if("MultiSSL" CURL_WITH_MULTI_SSL)
-curl_add_if("HTTPS-proxy" _ssl_enabled AND (USE_OPENSSL OR USE_GNUTLS
+curl_add_if("HTTPS-proxy" NOT CURL_DISABLE_PROXY AND _ssl_enabled AND (USE_OPENSSL OR USE_GNUTLS
OR USE_SCHANNEL OR USE_RUSTLS OR USE_BEARSSL OR
USE_MBEDTLS OR USE_SECTRANSP OR
(USE_WOLFSSL AND HAVE_WOLFSSL_BIO)))