From d82e425293244b5c8e27f9d88a42ea6d4dc63075 Mon Sep 17 00:00:00 2001
From: jzmaddock <jzmaddock@gmail.com>
Date: Fri, 21 Mar 2014 11:24:15 +0000
Subject: [PATCH] Tentative fix for gcc-4.7 and earlier failures on some
 machines but not others.

---
 include/boost/multiprecision/detail/default_ops.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/multiprecision/detail/default_ops.hpp b/include/boost/multiprecision/detail/default_ops.hpp
index 2e79ad87..8b3b893c 100644
--- a/include/boost/multiprecision/detail/default_ops.hpp
+++ b/include/boost/multiprecision/detail/default_ops.hpp
@@ -962,7 +962,7 @@ inline void eval_trunc(T& result, const T& a)
 {
    BOOST_STATIC_ASSERT_MSG(number_category<T>::value == number_kind_floating_point, "The trunc function is only valid for floating point types.");
    int c = eval_fpclassify(a);
-   if(c == FP_NAN || c == FP_INFINITE)
+   if(c == (int)FP_NAN || c == (int)FP_INFINITE)
    {
       result = boost::math::policies::raise_rounding_error("boost::multiprecision::trunc<%1%>(%1%)", 0, number<T>(a), number<T>(a), boost::math::policies::policy<>()).backend();
       return;