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-rw-r--r--unsupported/Eigen/FFT6
1 files changed, 3 insertions, 3 deletions
diff --git a/unsupported/Eigen/FFT b/unsupported/Eigen/FFT
index 3d852f5a2..31d8c74c5 100644
--- a/unsupported/Eigen/FFT
+++ b/unsupported/Eigen/FFT
@@ -1,5 +1,5 @@
// This file is part of Eigen, a lightweight C++ template library
-// for linear algebra. Eigen itself is part of the KDE project.
+// for linear algebra.
//
// Copyright (C) 2009 Mark Borgerding mark a borgerding net
//
@@ -29,14 +29,14 @@
#include "src/FFT/ei_kissfft_impl.h"
#define DEFAULT_FFT_IMPL ei_kissfft_impl
-// FFTW: faster, GPL-not LGPL, bigger code size
+// FFTW: faster, GPL -- incompatible with Eigen in LGPL form, bigger code size
#ifdef FFTW_PATIENT // definition of FFTW_PATIENT indicates the caller has included fftw3.h, we can use FFTW routines
// TODO
// #include "src/FFT/ei_fftw_impl.h"
// #define DEFAULT_FFT_IMPL ei_fftw_impl
#endif
-// intel Math Kernel Library: fastest, commerical
+// intel Math Kernel Library: fastest, commerical -- incompatible with Eigen in GPL form
#ifdef _MKL_DFTI_H_ // mkl_dfti.h has been included, we can use MKL FFT routines
// TODO
// #include "src/FFT/ei_imkl_impl.h"