From vcpkg CI, there is this error:

```
123456789101112131415161718192021222324252627C:\PROGRA~1\MICROS~1\2022\ENTERP~1\VC\Tools\MSVC\1441~1.341\bin\Hostx64\x64\cl.exe   /TP -DBOOST_ATOMIC_DYN_LINK -DBOOST_ATOMIC_NO_LIB -DBOOST_CHRONO_DYN_LINK -DBOOST_CHRONO_NO_LIB -DBOOST_CONTAINER_DYN_LINK -DBOOST_CONTAINER_NO_LIB -DBOOST_DATE_TIME_DYN_LINK -DBOOST_DATE_TIME_NO_LIB -DBOOST_IOSTREAMS_DYN_LINK -DBOOST_IOSTREAMS_NO_LIB -DBOOST_PROGRAM_OPTIONS_DYN_LINK -DBOOST_PROGRAM_OPTIONS_NO_LIB -DBOOST_RANDOM_DYN_LINK -DBOOST_RANDOM_NO_LIB -DBOOST_SERIALIZATION_DYN_LINK -DBOOST_SERIALIZATION_NO_LIB -DBOOST_THREAD_DYN_LINK -DBOOST_THREAD_NO_LIB -DBOOST_THREAD_USE_DLL -DCGAL_USE_GMPXX=1 -DGFLAGS_IS_A_DLL=1 -DGLOG_NO_ABBREVIATED_SEVERITIES -DGLOG_USE_GFLAGS -DGLOG_USE_GLOG_EXPORT -DH5_BUILT_AS_DYNAMIC_LIB -D_LIB -D_USE_BOOST -D_USE_EIGEN -D_USE_FAST_CBRT -D_USE_FAST_FLOAT2INT -D_USE_NONFREE -D_USE_OPENGL -D_USE_SSE -ID:\b\openmvs\x64-windows-dbg\libs\MVS\MVS_autogen\include -ID:\b\openmvs\src\v2.1.0-1e694de437.clean -ID:\b\openmvs\x64-windows-dbg -external:ID:\installed\x64-windows\include -external:ID:\installed\x64-windows\include\eigen3 -external:W0 /nologo /DWIN32 /D_WINDOWS /utf-8 /GR /EHsc /MP   /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /Zm170 /Zc:__cplusplus  /wd4231 /wd4251 /wd4308 /wd4396 /wd4503 /wd4661 /wd4996 /D_DEBUG /MDd /Z7 /Ob0 /Od /RTC1   -std:c++17 -D_SCL_SECURE_NO_DEPRECATE -D_SCL_SECURE_NO_WARNINGS /fp:strict /fp:except- /bigobj /Zc:__cplusplus /YuD:/b/openmvs/x64-windows-dbg/libs/MVS/CMakeFiles/MVS.dir/cmake_pch.hxx /FpD:/b/openmvs/x64-windows-dbg/libs/MVS/CMakeFiles/MVS.dir/./cmake_pch.cxx.pch /FID:/b/openmvs/x64-windows-dbg/libs/MVS/CMakeFiles/MVS.dir/cmake_pch.hxx /showIncludes /Folibs\MVS\CMakeFiles\MVS.dir\SceneReconstruct.cpp.obj /Fdlibs\MVS\CMakeFiles\MVS.dir\MVS.pdb /FS -c D:\b\openmvs\src\v2.1.0-1e694de437.clean\libs\MVS\SceneReconstruct.cpp
D:\installed\x64-windows\include\CGAL/CORE/MemoryPool.h(76): error C2059: syntax error: 'constant'
D:\installed\x64-windows\include\CGAL/CORE/MemoryPool.h(76): note: the template instantiation context (the oldest one first) is
D:\installed\x64-windows\include\CGAL/CORE/MemoryPool.h(39): note: while compiling class template 'CORE::MemoryPool'
D:\installed\x64-windows\include\CGAL/CORE/MemoryPool.h(119): error C2988: unrecognizable template declaration/definition
D:\installed\x64-windows\include\CGAL/CORE/MemoryPool.h(119): error C2059: syntax error: 'constant'
D:\installed\x64-windows\include\CGAL/CORE/Expr_impl.h(1217): error C2660: 'CORE::MemoryPool<CORE::ConstDoubleRep,1024>::_free_dbg': function does not take 2 arguments
D:\installed\x64-windows\include\CGAL/CORE/MemoryPool.h(76): note: see declaration of 'CORE::MemoryPool<CORE::ConstDoubleRep,1024>::_free_dbg'
D:\installed\x64-windows\include\CGAL/CORE/Expr_impl.h(1217): note: while trying to match the argument list '(void *, int)'
```

There is probably a macro named `free` somewhere.

… test machines