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{ lib, stdenv
, lapack-reference, openblasCompat, openblas
, isILP64 ? false
, blasProvider ? if isILP64 then openblas else openblasCompat }:
let
blasFortranSymbols = [
"caxpy" "ccopy" "cdotc" "cdotu" "cgbmv" "cgemm" "cgemv" "cgerc" "cgeru"
"chbmv" "chemm" "chemv" "cher" "cher2" "cher2k" "cherk" "chpmv" "chpr"
"chpr2" "crotg" "cscal" "csrot" "csscal" "cswap" "csymm" "csyr2k" "csyrk"
"ctbmv" "ctbsv" "ctpmv" "ctpsv" "ctrmm" "ctrmv" "ctrsm" "ctrsv" "dasum"
"daxpy" "dcabs1" "dcopy" "ddot" "dgbmv" "dgemm" "dgemv" "dger" "dnrm2"
"drot" "drotg" "drotm" "drotmg" "dsbmv" "dscal" "dsdot" "dspmv" "dspr"
"dspr2" "dswap" "dsymm" "dsymv" "dsyr" "dsyr2" "dsyr2k" "dsyrk" "dtbmv"
"dtbsv" "dtpmv" "dtpsv" "dtrmm" "dtrmv" "dtrsm" "dtrsv" "dzasum" "dznrm2"
"icamax" "idamax" "isamax" "izamax" "lsame" "sasum" "saxpy" "scabs1"
"scasum" "scnrm2" "scopy" "sdot" "sdsdot" "sgbmv" "sgemm" "sgemv"
"sger" "snrm2" "srot" "srotg" "srotm" "srotmg" "ssbmv" "sscal" "sspmv"
"sspr" "sspr2" "sswap" "ssymm" "ssymv" "ssyr" "ssyr2" "ssyr2k" "ssyrk"
"stbmv" "stbsv" "stpmv" "stpsv" "strmm" "strmv" "strsm" "strsv" "xerbla"
"xerbla_array" "zaxpy" "zcopy" "zdotc" "zdotu" "zdrot" "zdscal" "zgbmv"
"zgemm" "zgemv" "zgerc" "zgeru" "zhbmv" "zhemm" "zhemv" "zher" "zher2"
"zher2k" "zherk" "zhpmv" "zhpr" "zhpr2" "zrotg" "zscal" "zswap" "zsymm"
"zsyr2k" "zsyrk" "ztbmv" "ztbsv" "ztpmv" "ztpsv" "ztrmm" "ztrmv" "ztrsm"
"ztrsv"
];
version = "3";
canonicalExtension = if stdenv.hostPlatform.isLinux
then "${stdenv.hostPlatform.extensions.sharedLibrary}.${version}"
else stdenv.hostPlatform.extensions.sharedLibrary;
isILP64 = blasProvider.blas64 or false;
blasImplementation = lib.getName blasProvider;
in
assert isILP64 -> (blasImplementation == "openblas" && blasProvider.blas64) || blasImplementation == "mkl";
stdenv.mkDerivation {
pname = "blas";
inherit version;
outputs = [ "out" "dev" ];
meta = (blasProvider.meta or {}) // {
description = "${lib.getName blasProvider} with just the BLAS C and FORTRAN ABI";
};
passthru = {
inherit isILP64;
provider = blasProvider;
implementation = blasImplementation;
};
dontBuild = true;
dontConfigure = true;
unpackPhase = "src=$PWD";
dontPatchELF = true;
installPhase = (''
mkdir -p $out/lib $dev/include $dev/lib/pkgconfig
libblas="${lib.getLib blasProvider}/lib/libblas${canonicalExtension}"
if ! [ -e "$libblas" ]; then
echo "$libblas does not exist, ${blasProvider.name} does not provide libblas."
exit 1
fi
nm -an "$libblas" | cut -f3 -d' ' > symbols
for symbol in ${toString blasFortranSymbols}; do
grep "^$symbol_$" symbols || { echo "$symbol" was not found in "$libblas"; exit 1; }
done
cp -L "$libblas" $out/lib/libblas${canonicalExtension}
chmod +w $out/lib/libblas${canonicalExtension}
'' + (if stdenv.hostPlatform.parsed.kernel.execFormat.name == "elf" then ''
patchelf --set-soname libblas${canonicalExtension} $out/lib/libblas${canonicalExtension}
patchelf --set-rpath "$(patchelf --print-rpath $out/lib/libblas${canonicalExtension}):${lib.getLib blasProvider}/lib" $out/lib/libblas${canonicalExtension}
'' else if stdenv.hostPlatform.isDarwin then ''
install_name_tool \
-id libblas${canonicalExtension} \
-add_rpath ${lib.getLib blasProvider}/lib \
$out/lib/libblas${canonicalExtension}
'' else "") + ''
if [ "$out/lib/libblas${canonicalExtension}" != "$out/lib/libblas${stdenv.hostPlatform.extensions.sharedLibrary}" ]; then
ln -s $out/lib/libblas${canonicalExtension} "$out/lib/libblas${stdenv.hostPlatform.extensions.sharedLibrary}"
fi
cat <<EOF > $dev/lib/pkgconfig/blas.pc
Name: blas
Version: ${version}
Description: BLAS FORTRAN implementation
Libs: -L$out/lib -lblas
Cflags: -I$dev/include
EOF
libcblas="${lib.getLib blasProvider}/lib/libcblas${canonicalExtension}"
if ! [ -e "$libcblas" ]; then
echo "$libcblas does not exist, ${blasProvider.name} does not provide libcblas."
exit 1
fi
cp -L "$libcblas" $out/lib/libcblas${canonicalExtension}
chmod +w $out/lib/libcblas${canonicalExtension}
'' + (if stdenv.hostPlatform.parsed.kernel.execFormat.name == "elf" then ''
patchelf --set-soname libcblas${canonicalExtension} $out/lib/libcblas${canonicalExtension}
patchelf --set-rpath "$(patchelf --print-rpath $out/lib/libcblas${canonicalExtension}):${lib.getLib blasProvider}/lib" $out/lib/libcblas${canonicalExtension}
'' else if stdenv.hostPlatform.isDarwin then ''
install_name_tool \
-id libcblas${canonicalExtension} \
-add_rpath ${lib.getLib blasProvider}/lib \
$out/lib/libcblas${canonicalExtension}
'' else "") + ''
if [ "$out/lib/libcblas${canonicalExtension}" != "$out/lib/libcblas${stdenv.hostPlatform.extensions.sharedLibrary}" ]; then
ln -s $out/lib/libcblas${canonicalExtension} "$out/lib/libcblas${stdenv.hostPlatform.extensions.sharedLibrary}"
fi
cp ${lib.getDev lapack-reference}/include/cblas{,_mangling}.h $dev/include
cat <<EOF > $dev/lib/pkgconfig/cblas.pc
Name: cblas
Version: ${version}
Description: BLAS C implementation
Cflags: -I$dev/include
Libs: -L$out/lib -lcblas
EOF
'' + stdenv.lib.optionalString (blasImplementation == "mkl") ''
mkdir -p $out/nix-support
echo 'export MKL_INTERFACE_LAYER=${lib.optionalString isILP64 "I"}LP64,GNU' > $out/nix-support/setup-hook
ln -s $out/lib/libblas${canonicalExtension} $out/lib/libmkl_rt${stdenv.hostPlatform.extensions.sharedLibrary}
ln -sf ${blasProvider}/include/* $dev/include
'');
}
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