nixpkgs/pkgs/development/libraries/fftw/default.nix

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{ fetchurl, stdenv, lib, precision ? "double", perl }:
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with lib;
assert elem precision [ "single" "double" "long-double" "quad-precision" ];
let
version = "3.3.8";
withDoc = stdenv.cc.isGNU;
in
stdenv.mkDerivation rec {
name = "fftw-${precision}-${version}";
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src = fetchurl {
urls = [
"http://fftw.org/fftw-${version}.tar.gz"
"ftp://ftp.fftw.org/pub/fftw/fftw-${version}.tar.gz"
];
sha256 = "00z3k8fq561wq2khssqg0kallk0504dzlx989x3vvicjdqpjc4v1";
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};
outputs = [ "out" "dev" "man" ]
++ optional withDoc "info"; # it's dev-doc only
outputBin = "dev"; # fftw-wisdom
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configureFlags =
[ "--enable-shared" "--disable-static"
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"--enable-threads"
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]
++ optional (precision != "double") "--enable-${precision}"
# all x86_64 have sse2
# however, not all float sizes fit
++ optional (stdenv.isx86_64 && (precision == "single" || precision == "double") ) "--enable-sse2"
++ optional (stdenv.cc.isGNU && !stdenv.hostPlatform.isMusl) "--enable-openmp"
# doc generation causes Fortran wrapper generation which hard-codes gcc
++ optional (!withDoc) "--disable-doc";
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enableParallelBuilding = true;
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checkInputs = [ perl ];
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meta = with stdenv.lib; {
description = "Fastest Fourier Transform in the West library";
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homepage = http://www.fftw.org/;
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license = licenses.gpl2Plus;
maintainers = [ maintainers.spwhitt ];
platforms = platforms.unix;
};
}