OS X has its System Integrity Protection (SIP) which prevents using DTrace, and FreeBSD doesn't ship headers for DTrace by default, so they need to be installed before libusdt can be compiled. These issues (and their fixes) should be documented in the README.
OS X has its System Integrity Protection (SIP) which prevents using DTrace, and FreeBSD doesn't ship headers for DTrace by default, so they need to be installed before
libusdtcan be compiled. These issues (and their fixes) should be documented in the README.