Symbol versioning can solve this at the linker layer without modifying the source. One possibility is to use --default-symver when compiling OpenSSL and libmd,

Symbol versioning can solve this at the linker layer without modifying the source. One possibility is to use --default-symver when compiling OpenSSL and libmd, then when they are linked the appropriately the soname is used as a version tag for any unversioned symbols. An example: http://www.rkeene.org/viewer/tmp/linking-troubles/log.html.htm http://www.rkeene.org/viewer/tmp/linking-troubles/log.html.h... If you are a library maintainer and export a stable ABI, it might also be good to provide a version or every symbol if for no other reason than to avoid issues with the flat namespace.