Thanks for sharing the error, it was really useful. As you can see below and you previously mentioned, there's a symbol error since the MySQL binary we are shipping is only compatible with 10.12 on (more information at http://donal.ir/h/index.php?q=aHR0cHM6Ly9kZXYubXlzcWwuY29tL2Rvd25sb2Fkcy9teXNxbC8%3D):
Dyld Error Message:
Symbol not found: _clock_gettime
Referenced from: /Applications/tiki-17.1-2/*/mysqld.bin (which was built for Mac OS X 10.12)
Expected in: /usr/lib/libSystem.B.dylib
I just created a task to investigate this issue to find alternative MySQL binaries or modify the docs and the installers so they alert the user when trying to install a stack with MySQL on an old OS X version. Thanks so much for reporting it!