id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
9322	spinlock_gcc_arm.hpp fails when building iOS arm64	Joe Radjavitch <joerad11@…>	Peter Dimov	I am using boost in my iOS and Android applications and building for arm64 in iOS fails in spinlock_gcc_arm because the the SWP instruction and LDREX are not part of the arm64 instruction set. I do not have enough knowledge about the ARM assembly instructions to implement a proper fix for this myself and was hopeful someone with more expertise could provide a fix for the next release (or a patch for the current, if possible).	Bugs	new	To Be Determined	smart_ptr	Boost 1.54.0	Problem