From 801bb2c67845538e1b80669681b1eb1c4a6994a7 Mon Sep 17 00:00:00 2001
From: Murray Cumming <murrayc@murrayc.com>
Date: Thu, 3 Mar 2016 12:44:22 +0100
Subject: Remove now-unnecessary SIGC_CXX_HAS_NAMESPACE_STD() configure check.

Bug #762065 (Kjell Ahlstedt)
---
 build/cxx_std.m4 | 44 --------------------------------------------
 1 file changed, 44 deletions(-)

(limited to 'build')

diff --git a/build/cxx_std.m4 b/build/cxx_std.m4
index 8ef9548..e902c55 100644
--- a/build/cxx_std.m4
+++ b/build/cxx_std.m4
@@ -1,42 +1,3 @@
-cv_cxx_has_namespace_std
-## SIGC_CXX_HAS_NAMESPACE_STD()
-##
-## Test whether libstdc++ declares namespace std.  For safety,
-## also check whether several randomly selected STL symbols
-## are available in namespace std.
-##
-## On success, #define SIGC_HAVE_NAMESPACE_STD to 1.
-##
-AC_DEFUN([SIGC_CXX_HAS_NAMESPACE_STD],
-[
-  AC_CACHE_CHECK(
-    [whether C++ library symbols are declared in namespace std],
-    [sigc_cv_cxx_has_namespace_std],
-  [
-    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
-    [[
-      #include <algorithm>
-      #include <iterator>
-      #include <iostream>
-      #include <string>
-    ]],[[
-      using std::min;
-      using std::find;
-      using std::copy;
-      using std::bidirectional_iterator_tag;
-      using std::string;
-      using std::istream;
-      using std::cout;
-    ]])],
-      [sigc_cv_cxx_has_namespace_std='yes'],
-      [sigc_cv_cxx_has_namespace_std='no']
-    )
-  ])
-
-  AS_IF([test "x${sigc_cv_cxx_has_namespace_std}" = 'xyes'],
-  [AC_DEFINE([SIGC_HAVE_NAMESPACE_STD],[1], [Defined when the libstdc++ declares the std-namespace])])
-])
-
 ## SIGC_CXX_HAS_SUN_REVERSE_ITERATOR()
 ##
 ## Check for Sun libCstd style std::reverse_iterator, which demands more than just one template parameter.
@@ -44,8 +5,6 @@ AC_DEFUN([SIGC_CXX_HAS_NAMESPACE_STD],
 ##
 AC_DEFUN([SIGC_CXX_HAS_SUN_REVERSE_ITERATOR],
 [
-  AC_REQUIRE([SIGC_CXX_HAS_NAMESPACE_STD])
-
   AC_CACHE_CHECK(
     [for non-standard Sun libCstd reverse_iterator],
     [sigc_cv_cxx_has_sun_reverse_iterator],
@@ -53,9 +12,6 @@ AC_DEFUN([SIGC_CXX_HAS_SUN_REVERSE_ITERATOR],
     AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
     [[
       #include <iterator>
-      #ifdef SIGC_HAVE_NAMESPACE_STD
-      using namespace std;
-      #endif
     ]],[[
       typedef reverse_iterator<char*,random_access_iterator_tag,char,char&,char*,int> ReverseIter;
     ]])],
-- 
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