Qt VS Tools support cross-compilation of Qt projects by integrating Qt/MSBuild and the Linux development VS workload. This enables you to develop widget-based and Qt Quick applications that target both Windows and Linux, including embedded devices.
To develop Qt applications for Linux using Visual Studio:
- Install the Desktop development with C++ and Linux development with C++ workloads.
- Enable the Windows Subsystem for Linux (WSL) and install a Linux distribution.
- Or, create a connection to a remote Linux build server.
- Add the cross-compiled Qt build that resides in a WSL instance or the remote build server.
To add a Qt version for cross-compilation:
- Select Extensions > Qt VS Tools > Qt Versions > to add a new Qt version.
- In the Version field, enter a name for the Qt version. If you add the path to Qt first, this field is filled automatically.
- In Host, select Linux WSL or Linux SSH.
- In the Path field, enter the path to the Qt installation.
- In the Compiler field, enter the cross-compiler to use. The default value is g++.
Using a WSL instance to run the cross-compiler is faster than using an SSH connection to a build host. When using SSH, MSBuild must first upload the source files to the remote host, whereas WSL mounts local drives in
/mnt, making file access instantaneous.
MSBuild assumes that paths specified in options are local paths and maps them to corresponding Linux paths rooted on
/mnt. For example:
C:\include\foolib maps to /mnt/c/include/foolib
Using absolute Linux paths as value of Extensions > Qt VS Tools > Options > Qt/MSBuild can lead to wrong mappings. For example,
/home/user/raspi maps to
To avoid this issue, create symbolic links in
/mnt to other top-level directories in the WSL instance file system.
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