E.g.
utils/self-extracting-executable/compressor.cpp:257:31: format specifies type 'ptrdiff_t' (aka 'long') but the argument has type 'off_t' (aka 'long long') [-Werror,-Wformat]
printf("Size: %td\n", info_in.st_size);
~~~ ^~~~~~~~~~~~~~~
%lld
Not sure though if it's a hard requirement to use only C.
Avoided usage of fmt::format() to keep link dependencies to a minimum.
Also not using C++20 std::format() as it's only available in Clang >=14.
