[question] build problem

[Z-star1]

Describe the problem A clear and concise description of what the problem is.

Screenshots If applicable, add screenshots to help explain your problem.

Dataset If applicable, add a link or few images to help better understand where the problem may come from.

Log If applicable, copy paste the relevant log output (please embed the text in a markdown code tag "```" ) fatal error: math_functions.hpp: No such file or directory #include <math_functions.hpp> ^~~~~~~~~~~~~~~~~~~~ compilation terminated.

Desktop (please complete the following and other pertinent information):

• OS: [e.g. win 10, osx, ]
• CCtag version: please specify if you are using a release version or your own build
  • Binary version (if applicable) [e.g. 1.0.0]
  • Commit reference (if applicable) [e.g. 08ddbe2]

Additional context Add any other context about the problem here.