From 962a596d21332ec6901ba4a0787b3435264270c2 Mon Sep 17 00:00:00 2001
From: "Maxiwell S. Garcia" <maxiwell@linux.ibm.com>
Date: Fri, 22 Oct 2021 12:17:55 -0500
Subject: [PATCH] test: fix boostmutiprec test to compile with older Boost
 versions

Eigen boostmultiprec test redefines a symbol that is already defined
inside Boot Math [1]. Boost has fixed it recently [2], but this
patch avoids errors if Boost version was less than 1.77.

https://github.com/boostorg/math/blob/boost-1.76.0/include/boost/math/policies/policy.hpp#L18
https://github.com/boostorg/math/commit/68307123029676ba5cb316f8dd1d1c98d1fc7b23#diff-c7a8e5911c2e6be4138e1a966d762200f147792ac16ad96fdcc724313d11f839


(cherry picked from commit 99600bd1a6b133f8684800c855e59d4fd22ac23e)
---
 test/boostmultiprec.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/test/boostmultiprec.cpp b/test/boostmultiprec.cpp
index 7c79ded23..e83e97044 100644
--- a/test/boostmultiprec.cpp
+++ b/test/boostmultiprec.cpp
@@ -74,8 +74,7 @@
 #include <boost/math/special_functions.hpp>
 #include <boost/math/complex.hpp>
 
-namespace mp = boost::multiprecision;
-typedef mp::number<mp::cpp_dec_float<100>, mp::et_on> Real;
+typedef boost::multiprecision::number<boost::multiprecision::cpp_dec_float<100>, boost::multiprecision::et_on> Real;
 
 namespace Eigen {
   template<> struct NumTraits<Real> : GenericNumTraits<Real> {