On Mar 15, 2017, at 12:29 PM, Nick Coghlan wrote:
From a mainstream Linux point of view, it's not common - on systemd-managed systems, for example, the only way to get the C locale these days is to either specify it in /etc/locale.conf, or to set it specifically in the environment.
I think it's still the case that some isolation environments (e.g. Debian chroots) default to bare C locales. Often it doesn't matter, but sometimes tests or other applications run inside those environments will fail in ways they don't in a normal execution environment. The answer is almost always to explicitly coerce those environments to C.UTF-8 for Linuxes that support that.