after libfmt was updated to v8, I get the following error in the root prompt, but also when trying to use it in root macros:
root  #include<fmt/format.h> root  fmt::print("hi") IncrementalExecutor::executeFunction: symbol '_ZN3fmt2v86vprintENS0_17basic_string_viewIcEENS0_17basic_format_argsINS0_20basic_format_contextINS0_8appenderEcEEEE' unresolved while linking [cling interface function]! You are probably missing the definition of fmt::v8::vprint(fmt::v8::basic_string_view<char>, fmt::v8::basic_format_args<fmt::v8::basic_format_context<fmt::v8::appender, char> >) Maybe you need to load the corresponding shared library?
I guess either in libfmt some implementations were moved from the header to the library, or root before automatically loaded $FMT_ROOT/lib/libfmt.a
For macro compilation I managed to work around this problem by calling
gSystem->AddLinkedLibs("-Wl,-Bdynamic -L$FMT_ROOT/lib -lfmt -Wl,-Bstatic");
before the macro compilation. However, this is not an option for batch processing.
Does anyone have the same problem and perhaps a more solid solution?