Musl has __lctrans (and the LCTRANS macro form) which it uses to perform translation of messages (such as in strerror and strsignal). These are implemented by looking the message in the current locale data.
However, since emscripten doesn't actually support the loading of locale data from files we never end up translating these messages. This means we can save a little on code size and the transitive dependencies graph of certain functions by simple disabling this translation completely.
Musl has
__lctrans(and theLCTRANSmacro form) which it uses to perform translation of messages (such as in strerror and strsignal). These are implemented by looking the message in the current locale data.However, since emscripten doesn't actually support the loading of locale data from files we never end up translating these messages. This means we can save a little on code size and the transitive dependencies graph of certain functions by simple disabling this translation completely.