"CCMath.h" is missing after installing CCCoreLib

[BirWarrior]

Describe the bug Hey guys since I am new to CloudCompare I am not sure if its really a bug but "CCMath.h" is missing in the /usr/local/include/CCCorelib path. Without "CCMath.h" i am not able to use because the following Error is appearing:
/usr/local/include/CCCoreLib/Grid3D.h:7:10: fatal error: CCMath.h: No such file or directory 7 | #include "CCMath.h"

compilation terminated. ninja: build stopped: subcommand failed.

How to reproduce

1. First clone & build & install CCCoreLib
2. Create a CMake and inlcude CCCoreLib

• find_package(CCCoreLib REQUIRED)
• include_directories(${CCCORELIB_INCLUDE_DIR})
• target_link_libraries(${TARGET} PRIVATE CCCoreLib::CCCoreLib)

3. go to your main.cpp and #inlcude
4. build the project

Additional context Can I just fix the problem for now by copy&paste the "CCMath.h" file to the /usr/local/include/CCCorelib path?

Your environment

• CCCoreLib Version (or git hash/tag): https://github.com/CloudCompare/CCCoreLib.git (cloned on monday 09.08.2021)
• OS & Version: Ubuntu 21.04
• Qt Version (if compiling w/Qt): 5.15.2