Dear boxbackup maintainers, I have created a single-line patch which allows boxbackup to build with both OpenSSL 3.x[1] and OpenSSL 4.0[2].
OpenSSL 4.0 changes X509_get_subject_name() to return a `const X509_NAME *`. This patch ensures that value gets stored in a const pointer to allow this package to build with OpenSSL 4.0. Since the only consumer of this value, X509_NAME_get_text_by_NID(), accepts a const pointer in both OpenSSL 3.x and 4.0, this allows boxbackup to be built against both OpenSSL versions. Best wishes, Max Gilmour [1]: https://launchpad.net/~maxgmr/+archive/ubuntu/plusone/+sourcepub/18494082/+listing-archive-extra [2]: https://launchpad.net/~maxgmr/+archive/ubuntu/openssl4-transition/+sourcepub/18494084/+listing-archive-extra
Description: Store X509_get_subject_name() in const for OpenSSL 4.0 compat OpenSSL 4.0 changes X509_get_subject_name() to return a `const X509_NAME *`. This patch ensures that value gets stored in a const pointer to allow this package to build with OpenSSL 4.0. . Since the only consumer of this value, X509_NAME_get_text_by_NID(), accepts a const pointer in both OpenSSL 3.x and 4.0, this allows boxbackup to be built against both OpenSSL versions. Author: Max Gilmour <[email protected]> Bug: https://github.com/boxbackup/boxbackup/issues/129 Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1137563 Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/boxbackup/+bug/2154833 Last-Update: 2026-06-25 --- --- a/lib/server/SocketStreamTLS.cpp +++ b/lib/server/SocketStreamTLS.cpp @@ -469,7 +469,7 @@ } // Subject details - X509_NAME *subject = ::X509_get_subject_name(cert); + const X509_NAME *subject = ::X509_get_subject_name(cert); if(subject == 0) { ::X509_free(cert);
