diff --git a/0001-Fix-compiler-warnings-in-matrix.cpp.patch b/0001-Fix-compiler-warnings-in-matrix.cpp.patch
new file mode 100644
index 0000000..13fca96
--- /dev/null
+++ b/0001-Fix-compiler-warnings-in-matrix.cpp.patch
@@ -0,0 +1,48 @@
+From c67e8c9246ba6e51fb9f35da4bec8e23a744f4f7 Mon Sep 17 00:00:00 2001
+From: Jan Engelhardt <jengelh@inai.de>
+Date: Mon, 25 Dec 2017 14:21:54 +0100
+Subject: [PATCH] Fix compiler warnings in matrix.cpp
+
+Add a return clause, because assert() may be replaced with nothing by
+the preprocessor under -DNDEBUG.
+
+matrix.cpp: In member function 'std::vector<Integer> libnormaliz::Matrix<Integer>::VxM_div(const
+std::vector<Integer>&, const Integer&, bool&) const [with Integer = double]':
+matrix.cpp:942:1: warning: no return statement in function returning non-void [-Wreturn-type]
+matrix.cpp:2262:1: warning: no return statement in function returning non-void [-Wreturn-type]
+matrix.cpp:2696:1: warning: no return statement in function returning non-void [-Wreturn-type]
+---
+ source/libnormaliz/matrix.cpp | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/source/libnormaliz/matrix.cpp b/source/libnormaliz/matrix.cpp
+index ebec2958..c551c4d2 100644
+--- a/source/libnormaliz/matrix.cpp
++++ b/source/libnormaliz/matrix.cpp
+@@ -939,6 +939,7 @@ vector<Integer> Matrix<Integer>::VxM_div(const vector<Integer>& v, const Integer
+ template<>
+ vector<nmz_float> Matrix<nmz_float>::VxM_div(const vector<nmz_float>& v, const nmz_float& divisor, bool& success) const{
+     assert(false);
++    return {};
+ }
+ 
+ //---------------------------------------------------------------------------
+@@ -2259,6 +2260,7 @@ template<>
+ bool Matrix<nmz_float>::SmithNormalForm_inner(size_t& rk, Matrix<nmz_float>& Right){
+     
+     assert(false);    
++    return {};
+ }
+ 
+ // Converts "this" into Smith normal form, returns column transformation matrix
+@@ -2693,6 +2695,7 @@ vector<mpz_class> Matrix<mpz_class>::optimal_subdivision_point() const{
+ template<>
+ vector<nmz_float> Matrix<nmz_float>::optimal_subdivision_point_inner() const{
+     assert(false);
++    return {};
+ }
+ 
+ /*
+-- 
+2.15.1
+
diff --git a/normaliz-3.4.1.tar.gz b/normaliz-3.4.1.tar.gz
deleted file mode 100644
index 8d2ec8b..0000000
--- a/normaliz-3.4.1.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:20d1c0061ed589eb61591e04ef3449f5a54c4f4c9c191e7c53ce05468c96e415
-size 3468964
diff --git a/normaliz-3.5.0.tar.gz b/normaliz-3.5.0.tar.gz
new file mode 100644
index 0000000..b87f0f3
--- /dev/null
+++ b/normaliz-3.5.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:731c0ed673a0124149e1950be389694d5ed3d0e9810515380ba537aec03e4aca
+size 3912117
diff --git a/normaliz.changes b/normaliz.changes
index d9430c9..8e1db62 100644
--- a/normaliz.changes
+++ b/normaliz.changes
@@ -1,3 +1,13 @@
+-------------------------------------------------------------------
+Mon Dec 25 13:13:38 UTC 2017 - jengelh@inai.de
+
+- Update to new upstream release 3.5.0
+  * Euclidean volume of polytopes
+  * Expansion of series
+  * Projection of cones and polyhedra
+  * LLL reduced coordinates for project-and-lift
+- Add 0001-Fix-compiler-warnings-in-matrix.cpp.patch
+
 -------------------------------------------------------------------
 Wed Nov 22 09:25:13 UTC 2017 - badshah400@gmail.com
 
diff --git a/normaliz.spec b/normaliz.spec
index 90278a1..cb978ba 100644
--- a/normaliz.spec
+++ b/normaliz.spec
@@ -17,7 +17,7 @@
 
 
 Name:           normaliz
-Version:        3.4.1
+Version:        3.5.0
 Release:        0
 Summary:        Tools for computations in affine monoids and rational cones
 License:        GPL-3.0+
@@ -25,10 +25,13 @@ Group:          Productivity/Scientific/Math
 Url:            https://www.normaliz.uni-osnabrueck.de/
 
 Source:         https://github.com/Normaliz/Normaliz/releases/download/v%version/%name-%version.tar.gz
+Patch1:         0001-Fix-compiler-warnings-in-matrix.cpp.patch
 BuildRequires:  boost-devel
 BuildRequires:  cmake >= 2.6
+#maybe with flint-devel later on
 BuildRequires:  gcc-c++
 BuildRequires:  gmp-devel
+BuildRequires:  mpfr-devel
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description
@@ -75,6 +78,7 @@ the Normaliz computations from any C++ program.
 
 %prep
 %setup -q
+%patch -P 1 -p1
 
 %build
 pushd source/