[Bug lto/81686] LTO hardcodes identity host to target charset mapping

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81686

--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
The hook is specified to take an input that's in the basic source 
character set ($ is also used with it).  Maybe LTO should store the 
complete mapping for basic source characters in the object file in the 
case where it's not the identity mapping (and give an error if linking 
objects using different mappings).