1 files changed, 41 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..3e0dc99f81fc
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qrupdate/default.nix
@@ -0,0 +1,41 @@
+{ stdenv
+, fetchurl
+, gfortran
+, openblas
+}:
+stdenv.mkDerivation {
+  name = "qrupdate-1.1.2";
+  src = fetchurl {
+    url = mirror://sourceforge/qrupdate/qrupdate-1.1.2.tar.gz ;
+    sha256 = "024f601685phcm1pg8lhif3lpy5j9j0k6n0r46743g4fvh8wg8g2";
+  };
+
+  configurePhase =
+    ''
+      export PREFIX=$out
+      sed -i -e 's,^BLAS=.*,BLAS=-L${openblas}/lib -lopenblas,' \
+          -e 's,^LAPACK=.*,LAPACK=-L${openblas}/lib -lopenblas,' \
+          Makeconf
+    ''
+    + stdenv.lib.optionalString openblas.blas64
+    ''
+      sed -i Makeconf -e '/^FFLAGS=.*/ s/$/-fdefault-integer-8/'
+    '';
+
+  doCheck = true;
+
+  checkTarget = "test";
+
+  buildFlags = [ "lib" "solib" ];
+
+  installTargets = stdenv.lib.optionals stdenv.isDarwin [ "install-staticlib" "install-shlib" ];
+
+  buildInputs = [ gfortran openblas ];
+
+  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;
+  };
+}