id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
10910	arm64 value for <instruction-set> feature support	dmigous@…	Vladimir Prus	"I want to build boost for arm64 instruction set. But getting error:

    error: ""arm64"" is not a known value of feature <instruction-set>

This error occurs because builtin.jam file contains just following **valid** values for instruction-set feature:

    armv2 armv2a armv3 armv3m armv4 armv4t armv5 armv5t armv5te armv6 armv6j armv6j iwmmxt ep9312 armv7 armv7s

I also checked several versions of boost - all of them don't contain arm64 value at builtin.jam file. Meanwhile arm64 is a valid argument to **-arch** option for compiler (e.g. clang)

So my question is: why don't add there ""arm64"" value to the list of valid values for instruction-set feature? "	Patches	new	To Be Determined	build	Boost 1.57.0	Problem		arm, arm64, build