Don't fallback fmt to tp2
Summary:
Make `fbsource/third-party/fmt:fmt` not fallback on tp2. Also replace `umbrella` directory with a full list of headers to workaround the "Untracked headers detected" error in Eigen:
#forceTDHashing
@@ -1792,7 +1792,7 @@ OutputIt write(OutputIt out, const Char* value) {
const Char null[] = {
Char('('), Char('n'), Char('u'), Char('l'), Char('l'), Char(')')
};
- out = write(out, null);
+ out = write(out, basic_string_view<Char>(null, sizeof(null) / sizeof(Char)));
} else {
auto length = std::char_traits<Char>::length(value);
out = write(out, basic_string_view<Char>(value, length));
