b9e7a56c77
(higher speed, multithread). I also fixed the namings about single/double floats. svn path=/nixpkgs/trunk/; revision=22402
31 lines
1.3 KiB
Nix
31 lines
1.3 KiB
Nix
{fetchurl, stdenv, builderDefs, stringsWithDeps, singlePrecision ? false}:
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let localDefs = builderDefs.passthru.function {
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src =
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fetchurl {
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url = ftp://ftp.fftw.org/pub/fftw/fftw-3.2.2.tar.gz;
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sha256 = "13vnglardq413q2518zi4a8pam3znydrz28m9w09kss9xrjsx9va";
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};
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buildInputs = [];
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configureFlags = ["--enable-shared" "--enable-openmp"]
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# some distros seem to be shipping both versions within the same package?
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# why does --enable-float still result in ..3f.so instead of ..3.so?
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++ (if singlePrecision then [ "--enable-single" ] else [ ])
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# I think all i686 has sse
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++ (if (stdenv.isi686 || stdenv.isx86_64) && singlePrecision then [ "--enable-sse" ] else [ ])
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# I think all x86_64 has sse2
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++ (if stdenv.isx86_64 && ! singlePrecision then [ "--enable-sse2" ] else [ ]);
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};
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in with localDefs;
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stdenv.mkDerivation {
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name = "fftw-3.2.2" + ( if singlePrecision then "-single" else "-double" );
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builder = writeScript "fftw-3.2.1-builder"
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(textClosure localDefs [doConfigure doMakeInstall doForceShare]);
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meta = {
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description = "Fastest Fourier Transform in the West library";
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};
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passthru = {
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# Allow instantiating "-A fftw.src"
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inherit src;
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};
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}
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