added limboverflow.patch, rhbz#1171701, rhbz#1171710, there was one less limb allocated in strtofr

mpfr.spec

@@ -1,7 +1,7 @@
 Summary: A C library for multiple-precision floating-point computations
 Name: mpfr
 Version: 3.1.2
-Release: 6%{?dist}
+Release: 7%{?dist}
 URL: http://www.mpfr.org/
 Source0: http://www.mpfr.org/mpfr-current/%{name}-%{version}.tar.xz
 # GFDL  (mpfr.texi, mpfr.info and fdl.texi)
@@ -12,6 +12,8 @@ Requires(post): /sbin/ldconfig
 Requires(postun): /sbin/ldconfig
 Requires: gmp >= 4.2.1
 
+Patch0: limboverflow.patch
+
 %description
 The MPFR library is a C library for multiple-precision floating-point
 computations with "correct rounding". The MPFR is efficient and 
@@ -37,6 +39,7 @@ install the mpfr package.
 
 %prep
 %setup -q
+%patch0 -p1 -b .limboverflow
 
 %build
 %configure --disable-assert --disable-static
@@ -84,6 +87,9 @@ fi
 %{_infodir}/mpfr.info*
 
 %changelog
+* Fri Dec 12 2014 Frantisek Kluknavsky <fkluknav@redhat.com> - 3.1.2-7
+- added limboverflow.patch, rhbz#1171701, rhbz#1171710, there was one less limb allocated in strtofr
+
 * Sun Aug 17 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 3.1.2-6
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild