Technically CMake is still not official way to build Boost libraries. A link to latest docs: https://www.boost.org/doc/libs/1_88_0/more/getting_started/unix-var

Technically CMake is still not official way to build Boost libraries. A link to latest docs: https://www.boost.org/doc/libs/1_88_0/more/getting_started/unix-variants.html#install-boost-build https://www.boost.org/doc/libs/1_88_0/more/getting_started/u... While it might look like technicality the number of projects that kept their own build systems is substantial. I would say there are dozens open and many more not so open build systems out there that support large projects and organizations. I don't see anyone rushing to "rewrite it in CMake" anytime soon. At least in gamedev where I work.