https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63731
--- Comment #23 from boger at us dot ibm.com --- If I look at this documentation: http://tip.golang.org/doc/go1.4#gocmd It says this: The behavior of the go build subcommand's -a flag has been changed for non-development installations. For installations running a released distribution, the -a flag will no longer rebuild the standard library and commands, to avoid overwriting the installation's files. When I read this it sounds like the previous behavior with the -a option was to rebuild the packages and put the newly built packages into the installed directories, including the standard library. If everyone who used 'go build' with -a generated their own copy of the built packages and then threw them away, how would the installation's files ever get overwritten?
