59 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			59 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
{ fetchurl, stdenv, lib, llvmPackages ? null, precision ? "double", perl, mpi }:
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with lib;
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assert stdenv.cc.isClang -> llvmPackages != null;
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assert elem precision [ "single" "double" "long-double" "quad-precision" ];
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let
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  version = "3.3.8";
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  withDoc = stdenv.cc.isGNU;
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in
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stdenv.mkDerivation {
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  name = "fftw-${precision}-${version}";
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  src = fetchurl {
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    urls = [
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      "http://fftw.org/fftw-${version}.tar.gz"
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      "ftp://ftp.fftw.org/pub/fftw/fftw-${version}.tar.gz"
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    ];
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    sha256 = "00z3k8fq561wq2khssqg0kallk0504dzlx989x3vvicjdqpjc4v1";
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  };
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  outputs = [ "out" "dev" "man" ]
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    ++ optional withDoc "info"; # it's dev-doc only
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  outputBin = "dev"; # fftw-wisdom
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  buildInputs = [ mpi ]
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  ++ lib.optionals stdenv.cc.isClang [
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    # TODO: This may mismatch the LLVM version sin the stdenv, see #79818.
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    llvmPackages.openmp
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  ];
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  configureFlags =
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    [ "--enable-shared"
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      "--enable-threads"
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      "--enable-mpi"
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      "--disable-openmp"
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    ]
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    ++ optional (precision != "double") "--enable-${precision}"
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    # all x86_64 have sse2
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    # however, not all float sizes fit
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    ++ optional (stdenv.isx86_64 && (precision == "single" || precision == "double") )  "--enable-sse2"
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    # doc generation causes Fortran wrapper generation which hard-codes gcc
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    ++ optional (!withDoc) "--disable-doc";
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  enableParallelBuilding = true;
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  checkInputs = [ perl ];
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  meta = with lib; {
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    description = "Fastest Fourier Transform in the West library";
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    homepage = "http://www.fftw.org/";
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    license = licenses.gpl2Plus;
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    maintainers = [ maintainers.spwhitt ];
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    platforms = platforms.unix;
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  };
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}
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