So... not a bug in glslang, powershell just defaults to saving text in UTF-16... which means that if you generate a configuration file for glslangValidator like this:
glslangValidator -c > myconf.conf
in powershell, you end up with a .conf file that glslangValidator can't read, because it wants UTF8
@realkiran yeah, you're right, I mis-typed, powershell was kicking out UCS2-LE BOM according to notepad++
which... is better because at least I got to say "le bom" in my head a few times and imagine my text file was exploding.
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