diff --git a/pkgs/build-support/alternatives/blas/default.nix b/pkgs/build-support/alternatives/blas/default.nix
new file mode 100644
index 000000000000..1b8783438662
--- /dev/null
+++ b/pkgs/build-support/alternatives/blas/default.nix
@@ -0,0 +1,137 @@
+{ lib, stdenv
+, lapack-reference, openblasCompat, openblas
+, is64bit ? false
+, blasProvider ? if is64bit 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;
+
+
+  is64bit = blasProvider.blas64 or false;
+  blasImplementation = lib.getName blasProvider;
+
+in
+
+assert is64bit -> (blasImplementation == "openblas" && blasProvider.blas64) || blasImplementation == "mkl";
+
+stdenv.mkDerivation {
+  pname = "blas";
+  inherit version;
+
+  outputs = [ "out" "dev" ];
+
+  meta = (blasProvider.meta or {}) // {
+    description = "${lib.getName blasProvider} with just the BLAS C and FORTRAN ABI";
+  };
+
+  passthru = {
+    inherit is64bit;
+    provider = blasProvider;
+    implementation = blasImplementation;
+  };
+
+  dontBuild = true;
+  dontConfigure = true;
+  unpackPhase = "src=$PWD";
+
+  installPhase = (''
+  mkdir -p $out/lib $dev/include $dev/include/pkgconfig
+
+  libblas="${lib.getLib blasProvider}/lib/libblas${stdenv.hostPlatform.extensions.sharedLibrary}"
+
+  if ! [ -e "$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${stdenv.hostPlatform.extensions.sharedLibrary}"
+
+  if ! [ -e "$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 is64bit "I"}LP64,GNU' > $out/nix-support/setup-hook
+'');
+}
diff --git a/pkgs/build-support/alternatives/lapack/default.nix b/pkgs/build-support/alternatives/lapack/default.nix
new file mode 100644
index 000000000000..24c339042a2f
--- /dev/null
+++ b/pkgs/build-support/alternatives/lapack/default.nix
@@ -0,0 +1,111 @@
+{ lib, stdenv
+, lapack-reference, openblasCompat, openblas
+, is64bit ? false
+, lapackProvider ? if is64bit then openblas else openblasCompat }:
+
+let
+
+  version = "3";
+  canonicalExtension = if stdenv.hostPlatform.isLinux
+                       then "${stdenv.hostPlatform.extensions.sharedLibrary}.${version}"
+                       else stdenv.hostPlatform.extensions.sharedLibrary;
+
+  lapackImplementation = lib.getName lapackProvider;
+
+in
+
+assert is64bit -> (lapackImplementation == "openblas" && lapackProvider.blas64) || lapackImplementation == "mkl";
+
+stdenv.mkDerivation {
+  pname = "lapack";
+  inherit version;
+
+  outputs = [ "out" "dev" ];
+
+  meta = (lapackProvider.meta or {}) // {
+    description = "${lib.getName lapackProvider} with just the LAPACK C and FORTRAN ABI";
+  };
+
+  passthru = {
+    inherit is64bit;
+    provider = lapackProvider;
+    implementation = lapackImplementation;
+  };
+
+  dontBuild = true;
+  dontConfigure = true;
+  unpackPhase = "src=$PWD";
+
+  installPhase = (''
+  mkdir -p $out/lib $dev/include $dev/lib/pkgconfig
+
+  liblapack="${lib.getLib lapackProvider}/lib/liblapack${stdenv.hostPlatform.extensions.sharedLibrary}"
+
+  if ! [ -e "$liblapack" ]; then
+    echo "$liblapack does not exist, ${lapackProvider.name} does not provide liblapack."
+    exit 1
+  fi
+
+  cp -L "$liblapack" $out/lib/liblapack${canonicalExtension}
+  chmod +w $out/lib/liblapack${canonicalExtension}
+
+'' + (if stdenv.hostPlatform.parsed.kernel.execFormat.name == "elf" then ''
+  patchelf --set-soname liblapack${canonicalExtension} $out/lib/liblapack${canonicalExtension}
+  patchelf --set-rpath "$(patchelf --print-rpath $out/lib/liblapack${canonicalExtension}):${lapackProvider}/lib" $out/lib/liblapack${canonicalExtension}
+'' else if stdenv.hostPlatform.isDarwin then ''
+  install_name_tool -id liblapack${canonicalExtension} \
+                    -add_rpath ${lib.getLib lapackProvider}/lib \
+                    $out/lib/liblapack${canonicalExtension}
+'' else "") + ''
+
+  if [ "$out/lib/liblapack${canonicalExtension}" != "$out/lib/liblapack${stdenv.hostPlatform.extensions.sharedLibrary}" ]; then
+    ln -s $out/lib/liblapack${canonicalExtension} "$out/lib/liblapack${stdenv.hostPlatform.extensions.sharedLibrary}"
+  fi
+
+  install -D ${lib.getDev lapack-reference}/include/lapack.h $dev/include/lapack.h
+
+  cat <<EOF > $dev/lib/pkgconfig/lapack.pc
+Name: lapack
+Version: ${version}
+Description: LAPACK FORTRAN implementation
+Cflags: -I$dev/include
+Libs: -L$out/lib -llapack
+EOF
+
+  liblapacke="${lib.getLib lapackProvider}/lib/liblapacke${stdenv.hostPlatform.extensions.sharedLibrary}"
+
+  if ! [ -e "$liblapacke" ]; then
+    echo "$liblapacke does not exist, ${lapackProvider.name} does not provide liblapacke."
+    exit 1
+  fi
+
+  cp -L "$liblapacke" $out/lib/liblapacke${canonicalExtension}
+  chmod +w $out/lib/liblapacke${canonicalExtension}
+
+'' + (if stdenv.hostPlatform.parsed.kernel.execFormat.name == "elf" then ''
+  patchelf --set-soname liblapacke${canonicalExtension} $out/lib/liblapacke${canonicalExtension}
+  patchelf --set-rpath "$(patchelf --print-rpath $out/lib/liblapacke${canonicalExtension}):${lib.getLib lapackProvider}/lib" $out/lib/liblapacke${canonicalExtension}
+'' else if stdenv.hostPlatform.isDarwin then ''
+  install_name_tool -id liblapacke${canonicalExtension} \
+                    -add_rpath ${lib.getLib lapackProvider}/lib \
+                    $out/lib/liblapacke${canonicalExtension}
+'' else "") + ''
+
+  if [ -f "$out/lib/liblapacke.so.3" ]; then
+    ln -s $out/lib/liblapacke.so.3 $out/lib/liblapacke.so
+  fi
+
+  cp ${lib.getDev lapack-reference}/include/lapacke{,_mangling,_config}.h $dev/include
+
+  cat <<EOF > $dev/lib/pkgconfig/lapacke.pc
+Name: lapacke
+Version: ${version}
+Description: LAPACK C implementation
+Cflags: -I$dev/include
+Libs: -L$out/lib -llapacke
+EOF
+'' + stdenv.lib.optionalString (lapackImplementation == "mkl") ''
+  mkdir -p $out/nix-support
+  echo 'export MKL_INTERFACE_LAYER=${lib.optionalString is64bit "I"}LP64,GNU' > $out/nix-support/setup-hook
+'');
+}
diff --git a/pkgs/development/libraries/fflas-ffpack/default.nix b/pkgs/development/libraries/fflas-ffpack/default.nix
index 44267dfeceb5..16a9e3e79d45 100644
--- a/pkgs/development/libraries/fflas-ffpack/default.nix
+++ b/pkgs/development/libraries/fflas-ffpack/default.nix
@@ -1,6 +1,9 @@
-{ stdenv, fetchFromGitHub, autoreconfHook, givaro, pkgconfig, blas
+{ stdenv, fetchFromGitHub, autoreconfHook, givaro, pkgconfig, blas, lapack
 , gmpxx
 }:
+
+assert (!blas.is64bit) && (!lapack.is64bit);
+
 stdenv.mkDerivation rec {
   pname = "fflas-ffpack";
   version = "2.4.3";
@@ -23,11 +26,11 @@ stdenv.mkDerivation rec {
     pkgconfig
   ] ++ stdenv.lib.optionals doCheck checkInputs;
 
-  buildInputs = [ givaro blas ];
+  buildInputs = [ givaro blas lapack ];
 
   configureFlags = [
-    "--with-blas-libs=-l${blas.linkName}"
-    "--with-lapack-libs=-l${blas.linkName}"
+    "--with-blas-libs=-lcblas"
+    "--with-lapack-libs=-llapacke"
   ] ++ stdenv.lib.optionals stdenv.isx86_64 {
     # disable SIMD instructions (which are enabled *when available* by default)
     # for now we need to be careful to disable *all* relevant versions of an instruction set explicitly (https://github.com/linbox-team/fflas-ffpack/issues/284)
diff --git a/pkgs/development/libraries/linbox/default.nix b/pkgs/development/libraries/linbox/default.nix
index 006c774e9a1d..6d25cb459870 100644
--- a/pkgs/development/libraries/linbox/default.nix
+++ b/pkgs/development/libraries/linbox/default.nix
@@ -4,10 +4,14 @@
 , givaro
 , pkgconfig
 , blas
+, lapack
 , fflas-ffpack
 , gmpxx
 , withSage ? false # sage support
 }:
+
+assert (!blas.is64bit) && (!lapack.is64bit);
+
 stdenv.mkDerivation rec {
   pname = "linbox";
   version = "1.6.3";
@@ -33,7 +37,7 @@ stdenv.mkDerivation rec {
   ];
 
   configureFlags = [
-    "--with-blas-libs=-l${blas.linkName}"
+    "--with-blas-libs=-lblas"
     "--disable-optimization"
   ] ++ stdenv.lib.optionals stdenv.isx86_64 {
     # disable SIMD instructions (which are enabled *when available* by default)
diff --git a/pkgs/development/libraries/science/math/blas/default.nix b/pkgs/development/libraries/science/math/blas/default.nix
index c58ac6be23d9..c240a19cca67 100644
--- a/pkgs/development/libraries/science/math/blas/default.nix
+++ b/pkgs/development/libraries/science/math/blas/default.nix
@@ -68,10 +68,4 @@ EOF
     homepage = "http://www.netlib.org/blas/";
     platforms = stdenv.lib.platforms.unix;
   };
-
-  # We use linkName to pass a different name to --with-blas-libs for
-  # fflas-ffpack and linbox, because we use blas on darwin but openblas
-  # elsewhere.
-  # See see https://github.com/NixOS/nixpkgs/pull/45013.
-  passthru.linkName = "blas";
 }
diff --git a/pkgs/development/libraries/science/math/liblapack/default.nix b/pkgs/development/libraries/science/math/liblapack/default.nix
index d26bfbb3e6ea..045cccbd2ebf 100644
--- a/pkgs/development/libraries/science/math/liblapack/default.nix
+++ b/pkgs/development/libraries/science/math/liblapack/default.nix
@@ -42,7 +42,4 @@ stdenv.mkDerivation {
     license = licenses.bsd3;
     platforms = platforms.all;
   };
-
-  passthru.libblasName = "libblas";
-  passthru.libcblasName = "libcblas";
 }
diff --git a/pkgs/development/libraries/science/math/mkl/default.nix b/pkgs/development/libraries/science/math/mkl/default.nix
index 3def5e5b403c..f9026ec7b997 100644
--- a/pkgs/development/libraries/science/math/mkl/default.nix
+++ b/pkgs/development/libraries/science/math/mkl/default.nix
@@ -111,7 +111,14 @@ in stdenvNoCC.mkDerivation {
       cp -r opt/intel/compilers_and_libraries_${version}/linux/compiler/lib/intel64_lin/*.so* $out/lib/
       cp -r opt/intel/compilers_and_libraries_${version}/linux/mkl/lib/intel64_lin/*.so* $out/lib/
       cp -r opt/intel/compilers_and_libraries_${version}/linux/mkl/bin/pkgconfig/*dynamic*.pc $out/lib/pkgconfig
-    '');
+    '') + ''
+
+    # Setup symlinks for blas / lapack
+    ln -s $out/lib/libmkl_rt${stdenvNoCC.hostPlatform.extensions.sharedLibrary} $out/lib/libblas${stdenvNoCC.hostPlatform.extensions.sharedLibrary}
+    ln -s $out/lib/libmkl_rt${stdenvNoCC.hostPlatform.extensions.sharedLibrary} $out/lib/libcblas${stdenvNoCC.hostPlatform.extensions.sharedLibrary}
+    ln -s $out/lib/libmkl_rt${stdenvNoCC.hostPlatform.extensions.sharedLibrary} $out/lib/liblapack${stdenvNoCC.hostPlatform.extensions.sharedLibrary}
+    ln -s $out/lib/libmkl_rt${stdenvNoCC.hostPlatform.extensions.sharedLibrary} $out/lib/liblapacke${stdenvNoCC.hostPlatform.extensions.sharedLibrary}
+  '';
 
   # fixDarwinDylibName fails for libmkl_cdft_core.dylib because the
   # larger updated load commands do not fit. Use install_name_tool
diff --git a/pkgs/development/libraries/science/math/openblas/default.nix b/pkgs/development/libraries/science/math/openblas/default.nix
index 23168d741ba9..c55a5cb7878f 100644
--- a/pkgs/development/libraries/science/math/openblas/default.nix
+++ b/pkgs/development/libraries/science/math/openblas/default.nix
@@ -176,6 +176,12 @@ Cflags: -I$out/include
 Libs: -L$out/lib -lopenblas
 EOF
     done
+
+    # Setup symlinks for blas / lapack
+    ln -s $out/lib/libopenblas${stdenv.hostPlatform.extensions.sharedLibrary} $out/lib/libblas${stdenv.hostPlatform.extensions.sharedLibrary}
+    ln -s $out/lib/libopenblas${stdenv.hostPlatform.extensions.sharedLibrary} $out/lib/libcblas${stdenv.hostPlatform.extensions.sharedLibrary}
+    ln -s $out/lib/libopenblas${stdenv.hostPlatform.extensions.sharedLibrary} $out/lib/liblapack${stdenv.hostPlatform.extensions.sharedLibrary}
+    ln -s $out/lib/libopenblas${stdenv.hostPlatform.extensions.sharedLibrary} $out/lib/liblapacke${stdenv.hostPlatform.extensions.sharedLibrary}
   '';
 
   meta = with stdenv.lib; {
@@ -185,10 +191,4 @@ EOF
     platforms = platforms.unix;
     maintainers = with maintainers; [ ttuegel ];
   };
-
-  # We use linkName to pass a different name to --with-blas-libs for
-  # fflas-ffpack and linbox, because we use blas on darwin but openblas
-  # elsewhere.
-  # See see https://github.com/NixOS/nixpkgs/pull/45013.
-  passthru.linkName = "openblas";
 }
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 5ba9b723edd6..6ebf2bcf8df7 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -237,7 +237,7 @@ mapAliases ({
   libGL_driver = mesa.drivers;
   libintlOrEmpty = stdenv.lib.optional (!stdenv.isLinux || stdenv.hostPlatform.libc != "glibc") gettext; # added 2018-03-14
   libjson_rpc_cpp = libjson-rpc-cpp; # added 2017-02-28
-  liblapackWithoutAtlas = liblapack; # added 2018-11-05
+  liblapackWithoutAtlas = lapack-reference; # added 2018-11-05
   liblrdf = lrdf; # added 2018-04-25
   libqrencode = qrencode;  # added 2019-01-01
   librdf = lrdf; # added 2020-03-22
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a7b711d5277c..1f11beb8ee3d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -11479,20 +11479,11 @@ in
 
   ffcast = callPackage ../tools/X11/ffcast { };
 
-  fflas-ffpack = callPackage ../development/libraries/fflas-ffpack {
-    # We need to use blas instead of openblas on darwin,
-    # see https://github.com/NixOS/nixpkgs/pull/45013.
-    blas = if stdenv.isDarwin then blas else openblas;
-  };
+  fflas-ffpack = callPackage ../development/libraries/fflas-ffpack { };
 
   forge = callPackage ../development/libraries/forge { };
 
-  linbox = callPackage ../development/libraries/linbox {
-    # We need to use blas instead of openblas on darwin, see
-    # https://github.com/NixOS/nixpkgs/pull/45013 and
-    # https://github.com/NixOS/nixpkgs/pull/45015.
-    blas = if stdenv.isDarwin then blas else openblas;
-  };
+  linbox = callPackage ../development/libraries/linbox { };
 
   ffmpeg_2_8 = callPackage ../development/libraries/ffmpeg/2.8.nix {
     inherit (darwin.apple_sdk.frameworks) Cocoa;
@@ -24428,7 +24419,9 @@ in
 
   arpack = callPackage ../development/libraries/science/math/arpack { };
 
-  blas = callPackage ../development/libraries/science/math/blas { };
+  blas = callPackage ../build-support/alternatives/blas { };
+
+  blas-reference = callPackage ../development/libraries/science/math/blas { };
 
   brial = callPackage ../development/libraries/science/math/brial { };
 
@@ -24448,12 +24441,15 @@ in
 
   jags = callPackage ../applications/science/math/jags { };
 
+  lapack = callPackage ../build-support/alternatives/lapack { };
+
+  lapack-reference = callPackage ../development/libraries/science/math/liblapack { };
+  liblapack = lapack-reference;
+
   libbraiding = callPackage ../development/libraries/science/math/libbraiding { };
 
   libhomfly = callPackage ../development/libraries/science/math/libhomfly { };
 
-  liblapack = callPackage ../development/libraries/science/math/liblapack {};
-
   liblbfgs = callPackage ../development/libraries/science/math/liblbfgs { };
 
   lrs = callPackage ../development/libraries/science/math/lrs { };
diff --git a/pkgs/top-level/release-small.nix b/pkgs/top-level/release-small.nix
index ab7e4ce00d7d..1c7f758ccff3 100644
--- a/pkgs/top-level/release-small.nix
+++ b/pkgs/top-level/release-small.nix
@@ -78,9 +78,9 @@ with import ./release-lib.nix { inherit supportedSystems; };
   kvm = linux;
   qemu = linux;
   qemu_kvm = linux;
+  lapack-reference = linux;
   less = all;
   lftp = all;
-  liblapack = linux;
   libtool = all;
   libtool_2 = all;
   libxml2 = all;