*
* DPCPP uses oneMKL, which seems to have troubles with out-of-place
* transforms. */
-static constexpr bool sc_performOutOfPlaceFFT = !(GMX_SYCL_DPCPP && GMX_FFT_MKL);
+constexpr bool sc_performOutOfPlaceFFT = !((GMX_SYCL_DPCPP == 1) && (GMX_FFT_MKL == 1));
/*! \brief Return the output grid depending on whether in- or out-of
* place FFT is used