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https://github.com/SebastianWendel/nixpkgs.git
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506a304181
- Unify the "single" and "float" variants, which are the same thing. - Enable threads and openmp wrapper by default (they are very small). - Don't use sse on i686, as I'm quite sure we have no warrant for that. Cf. http://en.wikipedia.org/wiki/Pentium_Pro - Disable static libs (big, no indication we need them). - I tested most builds using fftw (they build OK).
40 lines
1.1 KiB
Nix
40 lines
1.1 KiB
Nix
{ fetchurl, stdenv, builderDefs, precision ? "double" }:
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assert stdenv.lib.elem precision [ "single" "double" "long-double" "quad-precision" ];
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with { inherit (stdenv.lib) optional; };
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let
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version = "3.3.3";
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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-${version}.tar.gz";
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sha256 = "1wwp9b2va7vkq3ay7a9jk22nr4x5q6m37rzqy2j8y3d11c5grkc5";
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};
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buildInputs = [];
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configureFlags = [
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"--enable-shared" "--disable-static"
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"--enable-threads" "--enable-openmp" # very small wrappers
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]
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++ optional (precision != "double") "--enable-${precision}"
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# all x86_64 have sse2
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++ optional stdenv.isx86_64 "--enable-sse2";
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};
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in with localDefs;
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stdenv.mkDerivation rec {
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name = "fftw-${precision}-${version}";
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builder = writeScript "${name}-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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