diff --git a/givaro-3.7.2.tar.gz b/givaro-3.7.2.tar.gz
new file mode 100644
index 0000000..0ad55db
--- /dev/null
+++ b/givaro-3.7.2.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:63a54eceb3827f39d4355fe62a8fb12d9d14d65cea0f46e7e1ee88ec9765c551
+size 794968
diff --git a/givaro-3.7.2.tar.xz b/givaro-3.7.2.tar.xz
deleted file mode 100644
index 36a39f7..0000000
--- a/givaro-3.7.2.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:93e4a9456a0677347b15df9eaf772668ad6f8e581df061d4a05a3cfd622f50f8
-size 460140
diff --git a/givaro-doc-no-build-time.patch b/givaro-doc-no-build-time.patch
new file mode 100644
index 0000000..639908a
--- /dev/null
+++ b/givaro-doc-no-build-time.patch
@@ -0,0 +1,13 @@
+Index: givaro-3.7.2/docs/Doxyfile.mod
+===================================================================
+--- givaro-3.7.2.orig/docs/Doxyfile.mod
++++ givaro-3.7.2/docs/Doxyfile.mod
+@@ -974,7 +974,7 @@ HTML_COLORSTYLE_GAMMA  = 80
+ # page will contain the date and time when the page was generated. Setting
+ # this to NO can help when comparing the output of multiple runs.
+ 
+-HTML_TIMESTAMP         = YES
++HTML_TIMESTAMP         = NO
+ 
+ # If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes,
+ # files or namespaces will be aligned in HTML using tables. If set to
diff --git a/givaro.changes b/givaro.changes
index 1f66d14..d8ab74e 100644
--- a/givaro.changes
+++ b/givaro.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Thu May 23 16:16:10 UTC 2013 - dmitry_r@opensuse.org
+
+- Replace tarball by the original variant
+- Replace duplicate files by links
+- Delete timestamp from documentation
+  * givaro-doc-no-build-time.patch
+
 -------------------------------------------------------------------
 Sun May 19 20:30:35 UTC 2013 - jengelh@inai.de
 
diff --git a/givaro.spec b/givaro.spec
index 86d7641..8ca4cc6 100644
--- a/givaro.spec
+++ b/givaro.spec
@@ -25,10 +25,11 @@ Summary:        C++ library for arithmetic and algebraic computations
 License:        CECILL-B
 Group:          Productivity/Scientific/Math
 Url:            http://givaro.forge.imag.fr/
-
-#DL-URL:	http://forge.imag.fr/frs/download.php/370/givaro-3.7.2.tar.gz
-Source:         %name-%version.tar.xz
+Source:         http://forge.imag.fr/frs/download.php/370/%{name}-%{version}.tar.gz
+# PATCH-FIX-OPENSUSE givaro-doc-no-build-time.patch -- Delete timestamp from documentation
+Patch1:         givaro-doc-no-build-time.patch
 BuildRequires:  doxygen
+BuildRequires:  fdupes
 BuildRequires:  gcc-c++
 BuildRequires:  gmp-devel >= 3.1.1
 BuildRequires:  graphviz
@@ -100,6 +101,7 @@ the Givaro API.
 
 %prep
 %setup -q
+%patch1 -p1
 
 %build
 %configure --disable-static --enable-doc --with-docdir="%_docdir/%name"
@@ -110,6 +112,8 @@ b="%buildroot";
 make install DESTDIR="$b";
 rm -f "$b/%_libdir"/*.la;
 
+%fdupes -s %{buildroot}/%{_docdir}/%{name}/givaro-html/
+
 %post   -n %lname -p /sbin/ldconfig
 %postun -n %lname -p /sbin/ldconfig
 
@@ -130,6 +134,7 @@ rm -f "$b/%_libdir"/*.la;
 %files doc
 %defattr(-,root,root)
 %dir %_docdir/%name/
+%exclude %{_docdir}/%{name}/givaro-html/INSTALL
 %_docdir/%name/givaro.html
 %_docdir/%name/givaro-html/