diff --git a/pkgs/development/libraries/qrupdate/default.nix b/pkgs/development/libraries/qrupdate/default.nix
new file mode 100644
index 000000000000..ee3416172308
--- /dev/null
+++ b/pkgs/development/libraries/qrupdate/default.nix
@@ -0,0 +1,19 @@
+{ stdenv
+, fetchurl
+, gfortran
+, blas
+, liblapack
+}:
+stdenv.mkDerivation {
+  name = "qrupdate-1.1.1";
+  src = fetchurl {
+    url = mirror://sourceforge/qrupdate/1.1/qrupdate-1.1.1.tar.gz ;
+    sha256 = "0ak68qd15zccr2d2qahxcxsrcdgxy7drg362jj9swv7rb39h00cz";  			
+  };
+  
+  preConfigure = ''
+    export PREFIX=$out
+  '';
+  
+  buildInputs = [gfortran blas liblapack] ;
+}
diff --git a/pkgs/development/libraries/suitesparse/default.nix b/pkgs/development/libraries/suitesparse/default.nix
new file mode 100644
index 000000000000..202f29ae3e41
--- /dev/null
+++ b/pkgs/development/libraries/suitesparse/default.nix
@@ -0,0 +1,21 @@
+{ stdenv
+, fetchurl
+, blas
+, liblapack
+}:
+stdenv.mkDerivation {
+  name = "suitespare";
+  src = fetchurl {
+    url = http://www.cise.ufl.edu/research/sparse/SuiteSparse/SuiteSparse-3.5.0.tar.gz ;
+    sha256 = "0npn7c1j5qag5m2r0cmh3bwc42c1jk8k2yg2cfyxlcrp0h7wn4rc";  			
+  };
+  buildInputs = [blas liblapack] ;
+  patches = [./disable-metis.patch];
+
+  preConfigure = ''
+    export PREFIX=$out
+    ensureDir $out/lib
+    ensureDir $out/include
+  '';
+
+}
diff --git a/pkgs/development/libraries/suitesparse/disable-metis.patch b/pkgs/development/libraries/suitesparse/disable-metis.patch
new file mode 100644
index 000000000000..32bb1d677fc0
--- /dev/null
+++ b/pkgs/development/libraries/suitesparse/disable-metis.patch
@@ -0,0 +1,123 @@
+diff -Nrc SuiteSparse/UFconfig/Makefile SuiteSparse-new/UFconfig/Makefile
+*** SuiteSparse/UFconfig/Makefile	2009-11-11 20:59:08.000000000 +0100
+--- SuiteSparse-new/UFconfig/Makefile	2010-08-02 13:14:04.000000000 +0200
+***************
+*** 25,31 ****
+  
+  # install UFconfig
+  install:
+! 	$(CP) Lib/libufconfig.a $(INSTALL_LIB)/libufconfig.$(VERSION).a
+  	( cd $(INSTALL_LIB) ; ln -s libufconfig.$(VERSION).a libufconfig.a )
+  	$(CP) UFconfig.h $(INSTALL_INCLUDE)
+  
+--- 25,31 ----
+  
+  # install UFconfig
+  install:
+! 	$(CP) libufconfig.a $(INSTALL_LIB)/libufconfig.$(VERSION).a
+  	( cd $(INSTALL_LIB) ; ln -s libufconfig.$(VERSION).a libufconfig.a )
+  	$(CP) UFconfig.h $(INSTALL_INCLUDE)
+  
+diff -Nrc SuiteSparse/UFconfig/UFconfig.mk SuiteSparse-new/UFconfig/UFconfig.mk
+*** SuiteSparse/UFconfig/UFconfig.mk	2010-06-02 17:40:42.000000000 +0200
+--- SuiteSparse-new/UFconfig/UFconfig.mk	2010-08-02 13:14:30.000000000 +0200
+***************
+*** 71,78 ****
+  # MAKE = gmake
+  
+  # For "make install"
+! INSTALL_LIB = /usr/local/lib
+! INSTALL_INCLUDE = /usr/local/include
+  
+  #------------------------------------------------------------------------------
+  # BLAS and LAPACK configuration:
+--- 71,78 ----
+  # MAKE = gmake
+  
+  # For "make install"
+! INSTALL_LIB = $(out)/lib
+! INSTALL_INCLUDE = $(out)/include
+  
+  #------------------------------------------------------------------------------
+  # BLAS and LAPACK configuration:
+***************
+*** 127,134 ****
+  # The path is relative to where it is used, in CHOLMOD/Lib, CHOLMOD/MATLAB, etc.
+  # You may wish to use an absolute path.  METIS is optional.  Compile
+  # CHOLMOD with -DNPARTITION if you do not wish to use METIS.
+! METIS_PATH = ../../metis-4.0
+! METIS = ../../metis-4.0/libmetis.a
+  
+  # If you use CHOLMOD_CONFIG = -DNPARTITION then you must use the following
+  # options:
+--- 127,134 ----
+  # The path is relative to where it is used, in CHOLMOD/Lib, CHOLMOD/MATLAB, etc.
+  # You may wish to use an absolute path.  METIS is optional.  Compile
+  # CHOLMOD with -DNPARTITION if you do not wish to use METIS.
+! #METIS_PATH = ../../metis-4.0
+! #METIS = 
+  
+  # If you use CHOLMOD_CONFIG = -DNPARTITION then you must use the following
+  # options:
+***************
+*** 189,195 ****
+  # -DNSUNPERF	    for Solaris only.  If defined, do not use the Sun
+  #			Performance Library
+  
+! CHOLMOD_CONFIG =
+  
+  #------------------------------------------------------------------------------
+  # SuiteSparseQR configuration:
+--- 189,195 ----
+  # -DNSUNPERF	    for Solaris only.  If defined, do not use the Sun
+  #			Performance Library
+  
+! CHOLMOD_CONFIG = -DNPARTITION
+  
+  #------------------------------------------------------------------------------
+  # SuiteSparseQR configuration:
+***************
+*** 203,209 ****
+  # -DHAVE_TBB        enable the use of Intel's Threading Building Blocks (TBB)
+  
+  # default, without timing, without TBB:
+! SPQR_CONFIG =
+  # with timing and TBB:
+  # SPQR_CONFIG = -DTIMING -DHAVE_TBB
+  # with timing
+--- 203,209 ----
+  # -DHAVE_TBB        enable the use of Intel's Threading Building Blocks (TBB)
+  
+  # default, without timing, without TBB:
+! SPQR_CONFIG = -DNPARTITION
+  # with timing and TBB:
+  # SPQR_CONFIG = -DTIMING -DHAVE_TBB
+  # with timing
+diff -Nrc SuiteSparse/UMFPACK/Demo/Makefile SuiteSparse-new/UMFPACK/Demo/Makefile
+*** SuiteSparse/UMFPACK/Demo/Makefile	2009-11-11 21:09:45.000000000 +0100
+--- SuiteSparse-new/UMFPACK/Demo/Makefile	2010-08-02 12:53:16.000000000 +0200
+***************
+*** 40,51 ****
+  ../../CAMD/Lib/libcamd.a:
+  	( cd ../../CAMD ; $(MAKE) library )
+  
+- ../../metis-4.0/libmetis.a:
+- 	( cd ../../metis-4.0/Lib ; $(MAKE) )
+  
+  UMFPACK = ../Lib/libumfpack.a ../../AMD/Lib/libamd.a \
+      ../../CHOLMOD/Lib/libcholmod.a ../../COLAMD/Lib/libcolamd.a \
+!     ../../CAMD/Lib/libcamd.a ../../metis-4.0/libmetis.a \
+      ../../CCOLAMD/Lib/libccolamd.a
+  
+  libs: $(UMFPACK)
+--- 40,49 ----
+  ../../CAMD/Lib/libcamd.a:
+  	( cd ../../CAMD ; $(MAKE) library )
+  
+  
+  UMFPACK = ../Lib/libumfpack.a ../../AMD/Lib/libamd.a \
+      ../../CHOLMOD/Lib/libcholmod.a ../../COLAMD/Lib/libcolamd.a \
+!     ../../CAMD/Lib/libcamd.a \
+      ../../CCOLAMD/Lib/libccolamd.a
+  
+  libs: $(UMFPACK)
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index bffa8f5d8d85..2786d7a65f2c 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5353,6 +5353,10 @@ let
     inherit fetchurl stdenv pkgconfig librdf_raptor ladspaH openssl zlib;
   };
 
+  qrupdate = import ../development/libraries/qrupdate { 
+      inherit stdenv fetchurl gfortran blas liblapack;
+  };
+
   redland = makeOverridable (import ../development/libraries/redland/1.0.10.nix) {
     inherit fetchurl stdenv openssl libxml2 pkgconfig perl sqlite
       mysql libxslt curl pcre librdf_rasqal librdf_raptor;
@@ -5447,6 +5451,10 @@ let
     inherit fetchurl stdenv;
   };
 
+  suitesparse = import ../development/libraries/suitesparse {
+    inherit fetchurl stdenv blas liblapack;  	
+  };
+
   t1lib = import ../development/libraries/t1lib {
     inherit fetchurl stdenv x11;
     inherit (xlibs) libXaw libXpm;