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nixpkgs/pkgs/development/libraries/science/math/tensorflow/bin.nix
2020-04-10 17:54:53 +01:00

78 lines
2.2 KiB
Nix

{ stdenv
, fetchurl
, addOpenGLRunpath
, cudaSupport ? false, symlinkJoin, cudatoolkit, cudnn, nvidia_x11
}:
with stdenv.lib;
let
unavailable = throw "libtensorflow is not available for this platform!";
tfType = if cudaSupport then "gpu" else "cpu";
system =
if stdenv.isLinux then "linux"
else if stdenv.isDarwin then "darwin"
else unavailable;
platform =
if stdenv.isx86_64 then "x86_64"
else unavailable;
rpath = makeLibraryPath ([stdenv.cc.libc stdenv.cc.cc.lib] ++
optionals cudaSupport [ cudatoolkit.out cudatoolkit.lib cudnn nvidia_x11 ]);
packages = import ./binary-hashes.nix;
packageName = "${tfType}-${system}-${platform}";
url = packages.${packageName} or unavailable;
patchLibs =
if stdenv.isDarwin
then ''
install_name_tool -id $out/lib/libtensorflow.dylib $out/lib/libtensorflow.dylib
install_name_tool -id $out/lib/libtensorflow_framework.dylib $out/lib/libtensorflow_framework.dylib
''
else ''
patchelf --set-rpath "${rpath}:$out/lib" $out/lib/libtensorflow.so
patchelf --set-rpath "${rpath}" $out/lib/libtensorflow_framework.so
${optionalString cudaSupport ''
addOpenGLRunpath $out/lib/libtensorflow.so $out/lib/libtensorflow_framework.so
''}
'';
in stdenv.mkDerivation rec {
pname = "libtensorflow";
inherit (packages) version;
src = fetchurl url;
nativeBuildInputs = optional cudaSupport addOpenGLRunpath;
# Patch library to use our libc, libstdc++ and others
buildCommand = ''
mkdir -pv $out
tar -C $out -xzf $src
chmod -R +w $out
${patchLibs}
# Write pkgconfig file.
mkdir $out/lib/pkgconfig
cat > $out/lib/pkgconfig/tensorflow.pc << EOF
Name: TensorFlow
Version: ${version}
Description: Library for computation using data flow graphs for scalable machine learning
Requires:
Libs: -L$out/lib -ltensorflow
Cflags: -I$out/include/tensorflow
EOF
'';
meta = {
description = "C API for TensorFlow";
homepage = "https://www.tensorflow.org/install/lang_c";
license = licenses.asl20;
platforms = [ "x86_64-linux" "x86_64-darwin" ];
maintainers = with maintainers; [ basvandijk ];
};
}