Quick note :

— Can’t find minimal tcmalloc
ERROR: Unable to find Intel TBB install directory.
CMake Error at CMake/HPHPFindLibs.cmake:296 (if):
if given arguments:

“LESS” “5005”

Unknown arguments specified
Call Stack (most recent call first):
CMake/HPHPSetup.cmake:125 (include)
third-party/CMakeLists.txt:18 (include)
— Configuring incomplete, errors occurred!
See also “/root/hhvm/hhvm/CMakeFiles/CMakeOutput.log”.
See also “/root/hhvm/hhvm/CMakeFiles/CMakeError.log”.

To solve that error :

# pkg install google-perftools
Updating Avalon repository catalogue…
Avalon repository is up-to-date.
All repositories are up-to-date.
The following 1 package(s) will be affected (of 0 checked):

New packages to be INSTALLED:
google-perftools: 2.4

The process will require 5 MiB more space.
621 KiB to be downloaded.

Proceed with this action? [y/N]: y
Fetching google-perftools-2.4.txz: 100% 621 KiB 79.5kB/s 00:08
Checking integrity… done (0 conflicting)
[1/1] Installing google-perftools-2.4…
[1/1] Extracting google-perftools-2.4: 100%