Commits
Uwe L. Korn authored and Neal Richardson committed 564366c6fb7
ARROW-9589: [C++/R] Forward declare structs as structs See also https://github.com/conda-forge/r-arrow-feedstock/pull/25 (yes, I'll also add the conda recipe to CI in the next days) Closes #7856 from xhochy/r-conda-fixes Authored-by: Uwe L. Korn <uwe.korn@quantco.com> Signed-off-by: Neal Richardson <neal.p.richardson@gmail.com>