Import https://raw.githubusercontent.com/joyent/illumos-joyent/master/usr/src/lib/libc/port/fp/__flt_rounds.c
Hack to try building flt_rounds stuff
Add http://ftp.stu.edu.tw/BSD/OpenBSD/src/lib/libc/softfloat/fpgetround.c
Import https://raw.githubusercontent.com/joyent/illumos-joyent/master/usr/src/lib/libc/i386/fp/__xgetRD.s
State of play
Readd