Using `printf("%s")` with a `std::filesystem::path` on Win32 will
cause a compile warning, because `std::filesystem::path::value_type`
is technically `wchar_t`.
The warning is harmless, but by using iostream to print the value
on `std::cout` instead, the code compiles without warnings.
The /usr/share/pixmaps location is considered a legacy location for
application icons; since the application icons are already installed in
the global XDG hicolor theme, then simply stop installing the 48px one
in the legacy pixmaps location.
The application icon is already provided as PNG in different sizes, and
installed in the global XDG hicolor icon theme. Hence, the XPM version
of it can be dropped, as it is redundant.
FeRD (Frank Dana)