This came up before - e.g. https://www.virtualbox.org/pipermail/vbox-dev/2023-April/010192.html
In my svn checkout of rev104157 yesterday I found the following missing and fixed by linking to a download of curl-8.7.1 (my link commands shown). Note - I do not know whether *all* of these are actually needed - the only two which caused failures were request.h and curl_osslq.h, but it was easier for me to link all that were present in the curl tree and not in the VBox tree. ln /usr/local/sysbuild/curl-8.7.1/lib/curl_sha512_256.c /opt/VirtualBox-rev104157/src/libs/curl-8.7.1/lib/curl_sha512_256.c ln /usr/local/sysbuild/curl-8.7.1/lib/curl_sha512_256.h /opt/VirtualBox-rev104157/src/libs/curl-8.7.1/lib/curl_sha512_256.h ln /usr/local/sysbuild/curl-8.7.1/lib/cw-out.c /opt/VirtualBox-rev104157/src/libs/curl-8.7.1/lib/cw-out.c ln /usr/local/sysbuild/curl-8.7.1/lib/cw-out.h /opt/VirtualBox-rev104157/src/libs/curl-8.7.1/lib/cw-out.h ln /usr/local/sysbuild/curl-8.7.1/lib/request.c /opt/VirtualBox-rev104157/src/libs/curl-8.7.1/lib/request.c ln /usr/local/sysbuild/curl-8.7.1/lib/request.h /opt/VirtualBox-rev104157/src/libs/curl-8.7.1/lib/request.h ln /usr/local/sysbuild/curl-8.7.1/lib/vquic/curl_osslq.c /opt/VirtualBox-rev104157/src/libs/curl-8.7.1/lib/vquic/curl_osslq.c ln /usr/local/sysbuild/curl-8.7.1/lib/vquic/curl_osslq.h /opt/VirtualBox-rev104157/src/libs/curl-8.7.1/lib/vquic/curl_osslq.h ln /usr/local/sysbuild/curl-8.7.1/lib/vquic/vquic-tls.c /opt/VirtualBox-rev104157/src/libs/curl-8.7.1/lib/vquic/vquic-tls.c ln /usr/local/sysbuild/curl-8.7.1/lib/vquic/vquic-tls.h /opt/VirtualBox-rev104157/src/libs/curl-8.7.1/lib/vquic/vquic-tls.h After which, build completed successfully and VBox working nicely. Cheers, John _______________________________________________ vbox-dev mailing list vbox-dev@virtualbox.org https://www.virtualbox.org/mailman/listinfo/vbox-dev