On 02/08/2017 07:35 PM, Kenneth Porter wrote: > --On Wednesday, February 08, 2017 7:25 PM -0800 Alice Wonder > <alice at domblogger.net> wrote: > >> As far as I can tell PHP built against LibreSSL works just fine running >> with the net-snmp bindings built against OpenSSL however there was a >> warning in the system log from ld when I tried it. > > There should only be a problem if Net-SNMP depends on bugs in the > OpenSSL implementation. What I really worry about is bugs in makefiles - if I have openssl-devel installed in /usr to satisfy the net-snmp-devel package, and I have libressl-devel installed on /opt - what happens if a Makefile gets confused when parsing the pkgconfig files or something and uses the wrong header files for the libraries it is linking against. That's why I want to make sure only one devel package for an API is installed at a time, and that's easiest to do by always using /usr as the prefix so that if dependencies are brought in by the mock build system that result in two implementations of the same API, they will conflict with each other and mock will exit. For the runtime I'm not that worried, the shared libraries have different versions. It's building where bugs in Makefile systems could cause the wrong headers being used.