Use junction points on Windows
Long project paths on Windows might lead to builds failing.
To overcome these issues:
- Use source directory names with short absolute paths. For example, use
C:\devinstead ofC:\Users\My Name\Projects. - Use short build directory paths.
- Use the Ninja generator for CMake.
- Use junction points on Windows for the source and build directories.
Junction points
At a junction point, a directory serves as an alias to another directory on the computer.
To use the junction points for CMake configure, build, and install operations, go to Preferences > CMake > General and select Use junctions for CMake configuration and build operations.
Set environment variables
Qt Creator stores junction points in C:\ProgramData\QtCreator\Links. To use another path, set it as the value of the QTC_CMAKE_JUNCTIONS_DIR environment variable.
Set the QTC_CMAKE_JUNCTIONS_HASH_LENGTH environment variable to shorten the MD5 hash key length from its default length value of 32.
See also How to: Build with CMake.
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