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 ,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,,,