/atomic_word.h/1.1.1.5/Sat Jan 19 10:14:12 2019//Tnetbsd-9
/cpu_defines.h/1.1.1.5/Sat Jan 19 10:14:12 2019//Tnetbsd-9
/cxxabi_tweaks.h/1.1.1.5/Sat Jan 19 10:14:12 2019//Tnetbsd-9
D/atomicity_builtins////
D/atomicity_mutex////
D/opt////