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-rw-r--r--fourier.hpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/fourier.hpp b/fourier.hpp
index 406f2f2..1ebb7bc 100644
--- a/fourier.hpp
+++ b/fourier.hpp
@@ -5,6 +5,10 @@
#include <vector>
#include <tuple>
+#ifndef FFTW_THREADS
+#define FFTW_THREADS 1
+#endif
+
using Real = double;
using Complex = std::complex<Real>;
using namespace std::complex_literals;