diff --git a/.cvsignore b/.cvsignore
index 2329825..55228aa 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -1 +1 @@
-ginac-1.4.4.tar.bz2
+ginac-1.5.1.tar.bz2
diff --git a/ginac-1.4.4-ginac_pc_in.patch b/ginac-1.4.4-ginac_pc_in.patch
new file mode 100644
index 0000000..5a6784d
--- /dev/null
+++ b/ginac-1.4.4-ginac_pc_in.patch
@@ -0,0 +1,9 @@
+--- ginac-1.4.4.org/ginac.pc.in	2009-03-16 21:17:22.000000000 +0530
++++ ginac-1.4.4/ginac.pc.in	2009-03-16 21:25:28.000000000 +0530
+@@ -7,5 +7,5 @@
+ Description: C++ library for symbolic calculations
+ Version: @VERSION@
+ Requires: cln >= 1.1.6
+-Libs: -L${libdir} -lginac @GINACLIB_RPATH@
++Libs: -L${libdir} -lginac
+ Cflags: -I${includedir}
diff --git a/ginac-1.5.1-lexer_cpp.patch b/ginac-1.5.1-lexer_cpp.patch
new file mode 100644
index 0000000..1da24a5
--- /dev/null
+++ b/ginac-1.5.1-lexer_cpp.patch
@@ -0,0 +1,10 @@
+--- ginac-1.5.1.org/ginac/parser/lexer.cpp	2009-03-16 22:04:09.000000000 +0530
++++ ginac-1.5.1/ginac/parser/lexer.cpp	2009-03-16 22:04:30.000000000 +0530
+@@ -23,6 +23,7 @@
+ #include "lexer.h"
+ #include "compiler.h"
+ 
++#include <cstdio>
+ #include <iostream>
+ #include <sstream>
+ #include <string>
diff --git a/ginac.spec b/ginac.spec
index 47f1c04..2690f23 100644
--- a/ginac.spec
+++ b/ginac.spec
@@ -1,12 +1,14 @@
 Name:           ginac
-Version:        1.4.4
-Release:        2%{?dist}
+Version:        1.5.1
+Release:        1%{?dist}
 Summary:        C++ library for symbolic calculations
 
 Group:          System Environment/Libraries
 License:        GPLv2+
 URL:            http://www.ginac.de/
 Source0:        http://www.ginac.de/%{name}-%{version}.tar.bz2
+Patch0:         ginac-1.4.4-ginac_pc_in.patch
+Patch1:         ginac-1.5.1-lexer_cpp.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 Requires(post): /sbin/install-info
@@ -55,6 +57,9 @@ the tool "viewgar" which displays the contents of GiNaC archives.
 %prep
 %setup -q
 
+%patch0 -p1 -b .ginac_pc_in
+%patch1 -p1 -b .lexer_cpp
+
 %build
 %configure --disable-dependency-tracking --disable-static
 make %{?_smp_mflags}
@@ -99,6 +104,19 @@ fi
 %{_mandir}/man?/*
 
 %changelog
+* Tue Mar 17 2009 Rakesh Pandit <rakesh@fedoraproject.org> - 1.5.1-1
+- Patched up lexer.cpp for missing header
+- Removed rpaths in pkgconfig file #487612
+- Updated to 1.5.1:
+-   Added polynomial factorization.
+-   New, faster (recursive descent) expression parser.
+-   Faster GCD computation.
+-   Replaced custom RTTI by standard C++ RTTI.
+-   Fixed recursion in polynomial divide that caused a significant slowdown in sqrfree().
+-   Improved lsolve() of systems containing non-numeric coefficients.
+-   Improved configuration and compatibility.
+
+
 * Tue Feb 24 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.4.4-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_11_Mass_Rebuild
 
diff --git a/import.log b/import.log
index 3ad57a5..49ac535 100644
--- a/import.log
+++ b/import.log
@@ -1 +1,2 @@
 ginac-1_4_4-1_fc10:HEAD:ginac-1.4.4-1.fc10.src.rpm:1232014772
+ginac-1_5_1-1_fc10:HEAD:ginac-1.5.1-1.fc10.src.rpm:1237265621
diff --git a/sources b/sources
index 5bd5072..3ef0f14 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-60d38b352258473e3cc4de75c0d6f88e  ginac-1.4.4.tar.bz2
+ef05970ea87d1808ec7e75dad833deca  ginac-1.5.1.tar.bz2