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{ stdenv, fetchurl, gfortran, perl, which, config, coreutils
# Most packages depending on openblas expect integer width to match
# pointer width, but some expect to use 32-bit integers always
# (for compatibility with reference BLAS).
, blas64 ? null
}:
with stdenv.lib;
let blas64_ = blas64; in
let
# To add support for a new platform, add an element to this set.
configs = {
armv7l-linux = {
BINARY = "32";
TARGET = "ARMV7";
DYNAMIC_ARCH = "0";
CC = "gcc";
USE_OPENMP = "1";
};
i686-linux = {
BINARY = "32";
TARGET = "P2";
DYNAMIC_ARCH = "1";
CC = "gcc";
USE_OPENMP = "1";
};
x86_64-darwin = {
BINARY = "64";
TARGET = "ATHLON";
DYNAMIC_ARCH = "1";
# Note that clang is available through the stdenv on OSX and
# thus is not an explicit dependency.
CC = "clang";
USE_OPENMP = "0";
MACOSX_DEPLOYMENT_TARGET = "10.7";
};
x86_64-linux = {
BINARY = "64";
TARGET = "ATHLON";
DYNAMIC_ARCH = "1";
CC = "gcc";
USE_OPENMP = "1";
};
};
in
let
config =
configs.${stdenv.system}
or (throw "unsupported system: ${stdenv.system}");
in
let
blas64 =
if blas64_ != null
then blas64_
else hasPrefix "x86_64" stdenv.system;
version = "0.2.19";
in
stdenv.mkDerivation {
name = "openblas-${version}";
src = fetchurl {
url = "https://github.com/xianyi/OpenBLAS/archive/v${version}.tar.gz";
sha256 = "0mw5ra1vjsqiba79zdhqfkqq6v3bla5a5c0wj7vca9qgjzjbah4w";
name = "openblas-${version}.tar.gz";
};
inherit blas64;
# Some hardening features are disabled due to sporadic failures in
# OpenBLAS-based programs. The problem may not be with OpenBLAS itself, but
# with how these flags interact with hardening measures used downstream.
# In either case, OpenBLAS must only be used by trusted code--it is
# inherently unsuitable for security-conscious applications--so there should
# be no objection to disabling these hardening measures.
hardeningDisable = [
# don't modify or move the stack
"stackprotector" "pic"
# don't alter index arithmetic
"strictoverflow"
# don't interfere with dynamic target detection
"relro" "bindnow"
];
nativeBuildInputs =
[gfortran perl which]
++ optionals stdenv.isDarwin [coreutils];
makeFlags =
[
"FC=gfortran"
''PREFIX="''$(out)"''
"NUM_THREADS=64"
"INTERFACE64=${if blas64 then "1" else "0"}"
"NO_STATIC=1"
]
++ mapAttrsToList (var: val: var + "=" + val) config;
doCheck = true;
checkTarget = "tests";
meta = with stdenv.lib; {
description = "Basic Linear Algebra Subprograms";
license = licenses.bsd3;
homepage = "https://github.com/xianyi/OpenBLAS";
platforms = platforms.unix;
maintainers = with maintainers; [ ttuegel ];
};
}
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