1 files changed, 42 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/qrupdate/default.nix b/nixpkgs/pkgs/development/libraries/qrupdate/default.nix
new file mode 100644
index 000000000000..f6c16583ad75
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qrupdate/default.nix
@@ -0,0 +1,42 @@
+{ stdenv
+, fetchurl
+, gfortran
+, blas
+, lapack
+}:
+stdenv.mkDerivation {
+  name = "qrupdate-1.1.2";
+  src = fetchurl {
+    url = "mirror://sourceforge/qrupdate/qrupdate-1.1.2.tar.gz";
+    sha256 = "024f601685phcm1pg8lhif3lpy5j9j0k6n0r46743g4fvh8wg8g2";
+  };
+
+  configurePhase =
+    ''
+      export PREFIX=$out
+      sed -i -e 's,^BLAS=.*,BLAS=-L${blas}/lib -lblas,' \
+          -e 's,^LAPACK=.*,LAPACK=-L${lapack}/lib -llapack,' \
+          Makeconf
+    ''
+    + stdenv.lib.optionalString blas.is64bit
+    ''
+      sed -i Makeconf -e '/^FFLAGS=.*/ s/$/-fdefault-integer-8/'
+    '';
+
+  doCheck = true;
+
+  checkTarget = "test";
+
+  buildFlags = [ "lib" "solib" ];
+
+  installTargets = stdenv.lib.optionals stdenv.isDarwin [ "install-staticlib" "install-shlib" ];
+
+  buildInputs = [ gfortran blas lapack ];
+
+  meta = with stdenv.lib; {
+    description = "Library for fast updating of qr and cholesky decompositions";
+    homepage = "https://sourceforge.net/projects/qrupdate/";
+    license = licenses.gpl3;
+    platforms = platforms.unix;
+  };
+}