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{ fetchurl, stdenv, lib, llvmPackages ? null, precision ? "double", perl }:
with lib;
assert stdenv.cc.isClang -> llvmPackages != null;
assert elem precision [ "single" "double" "long-double" "quad-precision" ];
let
version = "3.3.9";
withDoc = stdenv.cc.isGNU;
in
stdenv.mkDerivation {
name = "fftw-${precision}-${version}";
src = fetchurl {
urls = [
"http://fftw.org/fftw-${version}.tar.gz"
"ftp://ftp.fftw.org/pub/fftw/fftw-${version}.tar.gz"
];
sha256 = "sha256-vyx85AsEroEa9xTetRJRDMLBe5q51t3PSf5Eh+6nrz0=";
};
outputs = [ "out" "dev" "man" ]
++ optional withDoc "info"; # it's dev-doc only
outputBin = "dev"; # fftw-wisdom
buildInputs = lib.optionals stdenv.cc.isClang [
# TODO: This may mismatch the LLVM version sin the stdenv, see #79818.
llvmPackages.openmp
];
configureFlags =
[ "--enable-shared"
"--enable-threads"
]
++ 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"
++ [ "--enable-openmp" ]
# doc generation causes Fortran wrapper generation which hard-codes gcc
++ optional (!withDoc) "--disable-doc";
enableParallelBuilding = true;
checkInputs = [ perl ];
meta = with lib; {
description = "Fastest Fourier Transform in the West library";
homepage = "http://www.fftw.org/";
license = licenses.gpl2Plus;
maintainers = [ maintainers.spwhitt ];
platforms = platforms.unix;
};
}
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