Here we are :
15:49 sphnmce182 [~]$ sudo dtruss root.exe
dtrace: system integrity protection is on, some features will not be available
SYSCALL(args) = return
------------------------------------------------------------
| Welcome to ROOT 6.12/06 http://root.cern.ch |
| (c) 1995-2017, The ROOT Team |
| Built for macosx64 |
| From tag v6-12-06, 9 February 2018 |
| Try '.help', '.demo', '.license', '.credits', '.quit'/'.q' |
------------------------------------------------------------
root [0] dtrace: 13362 dynamic variable drops with non-empty dirty list
madvise(0x104DBE000, 0x3000, 0x5) = 0 0
madvise(0x104B86000, 0x2000, 0x5) = 0 0
open("/dev/dtracehelper\0", 0x2, 0xFFFFFFFFEB098AE0) = 3 0
ioctl(0x3, 0x80086804, 0x7FFEEB098A40) = 0 0
close(0x3) = 0 0
access("/AppleInternal/XBS/.isChrooted\0", 0x0, 0x0) = -1 Err#2
And when I changed the hostname, root does not start neither :
15:53 sphnmce182_test [~]$ hostname
sphnmce182_test
15:53 sphnmce182_test [~]$ root