realname "POSIX Timer"

define TIMER_POSIX

<add>
tm_posix.cpp
tm_posix.h
</add>

<libs>
linux -> rt
</libs>

# The *BSDs put clock_gettime in sys/time.h, not time.h like POSIX says
<os>
cygwin
linux
#freebsd
#netbsd
#openbsd
</os>