error: inlining failed in call to 'always_inline' 'c4::substr c4::to_substr(std::string&) noexcept': function body not available

[scalpel4k]

When trying to use an installed rapidyaml (rather than it being part of your project), it is practically unusable.

When installing the library, the compiler might not export symbols with the C4_ALWAYS_INLINE attribute. However, these are part of the public API of rapidyaml ....

[rpaasche]

#include <ryml_std.hpp>

Should do it.