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Especially older hardware doesn't support AVX instructions. DLib is still functional there, but significantly slower[1]. By setting `avxInstructions` to false, DLib will be compiled without this feature. [1] http://dlib.net/compile.html
37 lines
962 B
Nix
37 lines
962 B
Nix
{ stdenv, lib, fetchFromGitHub, cmake, pkgconfig, libpng, libjpeg
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, guiSupport ? false, libX11
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# see http://dlib.net/compile.html
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, avxSupport ? true
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}:
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stdenv.mkDerivation rec {
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version = "19.16";
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name = "dlib-${version}";
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src = fetchFromGitHub {
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owner = "davisking";
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repo = "dlib";
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rev ="v${version}";
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sha256 = "0ix52npsxfm6324jli7y0zkyijl5yirv2yzfncyd4sq0r9fcwb4p";
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};
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postPatch = ''
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rm -rf dlib/external
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'';
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cmakeFlags = [ "-DUSE_AVX_INSTRUCTIONS=${if avxSupport then "yes" else "no"}" ];
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enableParallelBuilding = true;
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nativeBuildInputs = [ cmake pkgconfig ];
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buildInputs = [ libpng libjpeg ] ++ lib.optional guiSupport libX11;
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meta = with stdenv.lib; {
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description = "A general purpose cross-platform C++ machine learning library";
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homepage = http://www.dlib.net;
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license = licenses.boost;
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maintainers = with maintainers; [ christopherpoole ma27 ];
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platforms = platforms.linux;
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};
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}
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