We want to be able to use unpacked MPQs on low-end platforms
(PS2/rg99/etc).
This is tricky on case-sensitive filesystems. Avoids case issues by
lowercasing all paths in the code (then we'll just need lowercased
listfiles).
instead of trying to navigate back to the source directory. That's fragile and breaks if the build ends up one level deeper (e.g. MSVC with the default build/<config>/ structure)
Gleb Mazovetskiy
obligaron
Anders Jenbo
ephphatha