cmake-bootstrap configure fails

[murrayE]

Configure of cmake-bootstrap @3.9.6 failed during sudo port migrate from Sonoma to Sequoia 15.0. From main.log:

:info:configure CMake 3.9.6, Copyright 2000-2017 Kitware, Inc. and Contributors
:info:configure C compiler on this system is: /usr/bin/clang -pipe -Os -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk -arch arm64 -std=gnu11
:info:configure ---------------------------------------------
:info:configure Error when bootstrapping CMake:
:info:configure Cannot find appropriate C++ compiler on this system.
:info:configure Please specify one using environment variable CXX.

As a result, a bunch of ports depending on cmake-bootstrap also failed to be restored: OpenBLAS, R-rsvg, emacs, ffmpeg, freeglut, graphviz, graphviz-gui, gtk3, latex2html, libavif, libheif, `....

[murrayE]

main.log

[ryandesign (Ryan Carsten Schmidt)]

This will also probably be #70750. See ProblemHotlist#clts16 for the solution.

[kencu (Ken)]

Indeed, we have confirmed that cmake-bootstrap builds just fine on Sequoia, once the CLTs are fixed:

 % port -v installed cmake-bootstrap
The following ports are currently installed:
  cmake-bootstrap @3.9.6_0 requested_variants='' platform='darwin 24' archs='arm64' date='2024-09-21T09:50:29-0700'

[murrayE]

Yes, after the old c++ directory is removed from CLT, cmake-bootstrap built just fine for me under Sequoia.