fix build on rhel

0001-Use-gcd-from-boost-math-gcd.patch

@@ -0,0 +1,44 @@
+From 9f68be99919871283238e4a12940d9581d724af2 Mon Sep 17 00:00:00 2001
+From: David Ostrovsky <david@ostrovsky.org>
+Date: Thu, 4 May 2017 19:14:13 +0200
+Subject: [PATCH] Use gcd from boost::math::gcd
+
+According to the documentation "Run-time GCD & LCM Determination": [1],
+gcd should be consumed from boost::math::gcd.
+
+[1] <http://www.boost.org/doc/libs/1_64_0/libs/math/doc/html/math_toolkit/run_time.html>
+
+Change-Id: I026a4e8ead75399765eb73fa5434a57958676383
+Reviewed-on: https://gerrit.libreoffice.org/37260
+Tested-by: Jenkins <ci@libreoffice.org>
+Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
+---
+ tools/source/generic/fract.cxx | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/tools/source/generic/fract.cxx b/tools/source/generic/fract.cxx
+index bc9bef467e86..afcb2e60ba42 100644
+--- a/tools/source/generic/fract.cxx
++++ b/tools/source/generic/fract.cxx
+@@ -30,6 +30,7 @@
+ #include <algorithm>
+ #include <cmath>
+ 
++#include <boost/math/common_factor_rt.hpp>
+ #include <boost/rational.hpp>
+ 
+ template<typename T>
+@@ -180,8 +181,8 @@ namespace
+         T den = r.denominator();
+ 
+         // Avoid overflow and preserve normalization
+-        T gcd1 = boost::integer::gcd(i.numerator(), den);
+-        T gcd2 = boost::integer::gcd(num, i.denominator());
++        T gcd1 = boost::math::gcd(i.numerator(), den);
++        T gcd2 = boost::math::gcd(num, i.denominator());
+ 
+         bool fail = false;
+         fail |= o3tl::checked_multiply(i.numerator() / gcd1, num / gcd2, num);
+-- 
+2.12.2
+

libreoffice.spec

@@ -246,6 +246,7 @@ Patch4: 0001-Related-tdf-106100-recover-mangled-svg-in-presentati.patch
 Patch5: 0001-Resolves-rhbz-1432468-disable-opencl-by-default.patch
 Patch6: 0001-apparently-the-executable-does-not-need-pdfium-direc.patch
 Patch7: 0001-add-missing-dep-on-dir.patch
+Patch8: 0001-Use-gcd-from-boost-math-gcd.patch
 
 %if 0%{?rhel}
 # not upstreamed