setCPACKPACKAGEVERSION

setCPACKPACKAGEVERSION is a directive used within the CMake build system, specifically when configuring CPack. CPack is a tool that generates installers for CMake-built projects. The setCPACKPACKAGEVERSION directive is employed to define the version number of the package that CPack will create. This version information is crucial for managing software releases, dependencies, and user understanding of the installed software.

When setCPACKPACKAGEVERSION is used, it assigns a specific string value to the CPack variable CPACK_PACKAGE_VERSION. This variable can then be referenced by other CPack configurations to embed the version into the installer, registry entries, or other package metadata. For example, it might be used to create a filename like "myproject-1.2.3.tar.gz" or to set a registry key indicating the installed version. The version string can follow standard versioning schemes like semantic versioning (e.g., "1.2.3") or custom formats depending on project requirements. Properly setting this variable ensures that the generated installers accurately reflect the version of the software being distributed.