问题
I'm working on a cross-platform Qt application and the paths are different on Mac OS X and Windows. Since the project is on an external hard-drive, the drive letter also occasionally changes on Windows.
For that reason, I would like to refer to the project directory using a variable, preferably a built-in one. In particular, is there such a variable usable in:
- The .pro file?
- The build settings (in the Projects tab)?
回答1:
The built-in _PRO_FILE_PWD_ variable contains the path to the directory containing the project file in use. That variable may be useful for you.
回答2:
To complete, @Bill's answer, the way to refer to the source path in the Build Settings is to use %{sourceDir}.
%{buildDir} is also available.
回答3:
Since I struggled a bit to find it, I'm adding it here.
In addition to %{sourceDir} and %{buildDir}, you could use %{CurrentDocument:Path}, %{CurrentDocument:FilePath} and %{CurrentProject:Path} to refer to specific files and folders in the project directory.
回答4:
There are problems with $$_PRO_FILE_PWD_ on windows, because it contains forward slash allways. You need to fix slash using shell_path.
$$shell_path($$_PRO_FILE_PWD_)
来源：https://stackoverflow.com/questions/12106502/variable-that-refers-to-the-project-directory-in-qt-creator