Otherwise we may end up with:
[2/3] Building CXX object 'debuggers/lldb/unittests/debugees/path with space/CMakeFiles/lldb_spacedebugee.dir/spacedebugee.cpp.o' FAILED: debuggers/lldb/unittests/debugees/path with space/CMakeFiles/lldb_spacedebugee.dir/spacedebugee.cpp.o /home/kfunk/devel/install/master/bin/clazy ... -fPIC -MD -MT 'debuggers/lldb/unittests/debugees/path with space/CMakeFiles/lldb_spacedebugee.dir/spacedebugee.cpp.o' -MF debuggers/lldb/unittests/debugees/path\ with\ space/CMakeFiles/lldb_spacedebugee.dir/spacedebugee.cpp.o.d -o 'debuggers/lldb/unittests/debugees/path with space/CMakeFiles/lldb_spacedebugee.dir/spacedebugee.cpp.o' -c "/home/kfunk/devel/src/kf5/kdevelop/debuggers/lldb/unittests/debugees/path with space/spacedebugee.cpp" clang: error: no such file or directory: 'with' clang: error: no such file or directory: 'space' clang: error: no such file or directory: 'with' clang: error: no such file or directory: 'space' clang: error: no such file or directory: 'with' clang: error: no such file or directory: 'space/CMakeFiles/lldb_spacedebugee.dir/spacedebugee.cpp.o' clang: error: no such file or directory: 'with' clang: error: no such file or directory: 'space/CMakeFiles/lldb_spacedebugee.dir/spacedebugee.cpp.o.d' clang: error: no such file or directory: 'with' clang: error: no such file or directory: 'space/CMakeFiles/lldb_spacedebugee.dir/spacedebugee.cpp.o' clang: error: no such file or directory: '/home/kfunk/devel/src/kf5/kdevelop/debuggers/lldb/unittests/debugees/path' clang: error: no such file or directory: 'with' clang: error: no such file or directory: 'space/spacedebugee.cpp' clang: error: no input files ninja: build stopped: subcommand failed.