On Mon, Mar 4, 2024, at 9:54 AM, Zack Weinberg wrote: > Fixing these things is a high priority for Autoconf 2.73 but nobody > currently has time to work on it. If you have time, we would > appreciate your working on it -- even just a rough draft of revised > test programs would be helpful. Oh, also, as a workaround, try ./configure CXX='g++ -std=c++2a' ac_cv_prog_cxx_cxx11='none needed' This _ought_ to bypass the troublesome test. If it doesn't work, try setting ac_cv_prog_cxx_cxx11='none needed' in a config.site file instead of putting it on the command line. zw
