On Mar 26, 2025, at 11:29, joerg van den hoff wrote: > I did a major OSX update (from 12.x to 15.3 ...) and have run into this > problem after having update the Xcode command line tools and issuing port > migrate. > > the graphiz package (which is a dependency of the `feh' image viewer which is > the actual package I do need) refuses to install: > > :info:configure checking whether /usr/bin/clang++ supports C++17 features > with -std=c++17... no > :info:configure checking whether /usr/bin/clang++ supports C++17 features > with +std=c++17... no > :info:configure checking whether /usr/bin/clang++ supports C++17 features > with -h std=c++17... no > :info:configure checking whether /usr/bin/clang++ supports C++17 features > with -std=c++1z... no > :info:configure checking whether /usr/bin/clang++ supports C++17 features > with +std=c++1z... no > :info:configure checking whether /usr/bin/clang++ supports C++17 features > with -h std=c++1z... no > :info:configure configure: error: *** A compiler with support for C++17 > language features is required. > > I do see this with > > clang --version > Apple clang version 16.0.0 (clang-1600.0.26.6) > > and I believe this is as it should be with OSX 15.3? > > my question: can this be fixed on my side or is this a principal issue > currently?
Please try https://trac.macports.org/wiki/ProblemHotlist#clts16
