1 files changed, 0 insertions, 60 deletions
diff --git a/release_23/autoconf/m4/cxx_hash_set.m4 b/release_23/autoconf/m4/cxx_hash_set.m4
deleted file mode 100644
index e9d28bfe35b9..000000000000
--- a/release_23/autoconf/m4/cxx_hash_set.m4
+++ /dev/null
@@ -1,60 +0,0 @@
-# Check for hash_set extension.  This is modified from
-# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_hash_set.html
-AC_DEFUN([AC_CXX_HAVE_STD_EXT_HASH_SET],
-[AC_CACHE_CHECK([whether the compiler has <ext/hash_set> defining template class std::hash_set],
- ac_cv_cxx_have_std_ext_hash_set,
- [AC_REQUIRE([AC_CXX_NAMESPACES])
-  AC_LANG_PUSH([C++])
-  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <ext/hash_set>
-#ifdef HAVE_NAMESPACES
-using namespace std;
-#endif]], [[hash_set<int> t; ]])],[ac_cv_cxx_have_std_ext_hash_set=yes],[ac_cv_cxx_have_std_ext_hash_set=no])
-  AC_LANG_POP([C++])])
- if test "$ac_cv_cxx_have_std_ext_hash_set" = yes
- then
-   AC_DEFINE(HAVE_STD_EXT_HASH_SET,1,[Have hash_set in std namespace])
- else
-   AC_DEFINE(HAVE_STD_EXT_HASH_SET,0,[Does not have hash_set in std namespace])
- fi
- ])
-
-AC_DEFUN([AC_CXX_HAVE_GNU_EXT_HASH_SET],
-[AC_CACHE_CHECK(
- [whether the compiler has <ext/hash_set> defining template class __gnu_cxx::hash_set],
- ac_cv_cxx_have_gnu_ext_hash_set,
- [AC_REQUIRE([AC_CXX_NAMESPACES])
-  AC_LANG_PUSH([C++])
-  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <ext/hash_set>
-#ifdef HAVE_NAMESPACES
-using namespace __gnu_cxx;
-#endif]], [[hash_set<int> t; ]])],[ac_cv_cxx_have_gnu_ext_hash_set=yes],[ac_cv_cxx_have_gnu_ext_hash_set=no])
-  AC_LANG_POP([C++])])
- if test "$ac_cv_cxx_have_gnu_ext_hash_set" = yes
- then
-   AC_DEFINE(HAVE_GNU_EXT_HASH_SET,1,[Have hash_set in gnu namespace])
- else
-   AC_DEFINE(HAVE_GNU_EXT_HASH_SET,0,[Does not have hash_set in gnu namespace])
- fi
- ])
-
-AC_DEFUN([AC_CXX_HAVE_GLOBAL_HASH_SET],
-[AC_CACHE_CHECK([whether the compiler has <hash_set> defining template class ::hash_set],
- ac_cv_cxx_have_global_hash_set,
- [AC_REQUIRE([AC_CXX_NAMESPACES])
-  AC_LANG_PUSH([C++])
-  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <hash_set>]], [[hash_set<int> t; return 0;]])],[ac_cv_cxx_have_global_hash_set=yes],[ac_cv_cxx_have_global_hash_set=no])
-  AC_LANG_POP([C++])])
- if test "$ac_cv_cxx_have_global_hash_set" = yes
- then
-   AC_DEFINE(HAVE_GLOBAL_HASH_SET,1,[Have hash_set in global namespace])
- else
-   AC_DEFINE(HAVE_GLOBAL_HASH_SET,0,[Does not have hash_set in global namespace])
- fi
- ])
-
-AC_DEFUN([AC_CXX_HAVE_HASH_SET],
-[AC_CXX_HAVE_STD_EXT_HASH_SET
- AC_CXX_HAVE_GNU_EXT_HASH_SET
- AC_CXX_HAVE_GLOBAL_HASH_SET])
-
-