The BOM did not help: CMake preprocesses the .rc with clang before
handing it to llvm-rc, and the marker does not survive that, so llvm-rc
still met a byte it refuses to guess at. Dropped the diacritic from the
file description - it is metadata for the properties dialog.
LPT.cpp and PoKeys55.cpp never imported the modules holding WriteLog,
ToLower and contains. Neither file is compiled on Linux, so nothing had
caught it; Console.cpp, which is built the same way, already had its
imports.
eu07.rc.in was stored in CP1250 - the o-acute in "pojazdow" is a single
0xF3 byte. rc.exe guessed a codepage, llvm-rc refuses to. Re-encoded as
UTF-8 with a BOM, which both recognise.