https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100285
--- Comment #18 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>: https://gcc.gnu.org/g:3494bc7b03997f96e84e84f6904917854466d5ea commit r12-10541-g3494bc7b03997f96e84e84f6904917854466d5ea Author: Jonathan Wakely <jwak...@redhat.com> Date: Fri Jun 9 12:15:21 2023 +0100 libstdc++: Add preprocessor checks to <experimental/internet> [PR100285] We can't define endpoints and resolvers without the relevant OS support. If IPPROTO_TCP and IPPROTO_UDP are both undefined then we won't need basic_endpoint and basic_resolver anyway, so make them depend on those macros. libstdc++-v3/ChangeLog: PR libstdc++/100285 * include/experimental/internet [IPPROTO_TCP || IPPROTO_UDP] (basic_endpoint, basic_resolver_entry, resolver_base) (basic_resolver_results, basic_resolver): Only define if the tcp or udp protocols will be defined. (cherry picked from commit 793ed718b522b15e2d758eca953feeec1979fe2c)
