From: David Wells <wellsd2@rpi.edu>
Date: Sat, 29 Oct 2016 15:52:53 +0000 (-0400)
Subject: Redo boost/system commit 241f69c55e.
X-Git-Tag: v8.5.0-rc1~523^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F3315%2Fhead;p=dealii.git

Redo boost/system commit 241f69c55e.

This commit from November 2015 silences a GCC warning due to unused
variables.
---

diff --git a/bundled/boost-1.62.0/include/boost/system/error_code.hpp b/bundled/boost-1.62.0/include/boost/system/error_code.hpp
index d419f3701b..232464c66e 100644
--- a/bundled/boost-1.62.0/include/boost/system/error_code.hpp
+++ b/bundled/boost-1.62.0/include/boost/system/error_code.hpp
@@ -218,9 +218,9 @@ namespace boost
     inline const error_category &  get_system_category() { return system_category(); }
     inline const error_category &  get_generic_category() { return generic_category(); }
     inline const error_category &  get_posix_category() { return generic_category(); }
-    static const error_category &  posix_category = generic_category();
-    static const error_category &  errno_ecat     = generic_category();
-    static const error_category &  native_ecat    = system_category();
+    static const error_category &  posix_category BOOST_ATTRIBUTE_UNUSED = generic_category();
+    static const error_category &  errno_ecat     BOOST_ATTRIBUTE_UNUSED = generic_category();
+    static const error_category &  native_ecat    BOOST_ATTRIBUTE_UNUSED = system_category();
 # endif
 
     //  class error_condition  -----------------------------------------------//