Removed further outdated Autoconf tests.

See commits 09017a3 and 95c799f for details and the corresponding
CMake changes.

Author: jriesmeier

config/aclocal.m4

@@ -344,30 +344,6 @@ fi
 rm -f conftest*])
 
 
-dnl AC_CHECK_STD_NAMESPACE checks if the C++-Compiler supports the
-dnl   standard name space.
-dnl
-dnl AC_CHECK_STD_NAMESPACE
-AC_DEFUN(AC_CHECK_STD_NAMESPACE,
-[AC_MSG_CHECKING([for C++ standard namespace])
-AH_TEMPLATE(HAVE_STD_NAMESPACE, [Define if ANSI standard C++ includes use std namespace.])
-AC_CACHE_VAL(ac_cv_check_std_namespace,
-[AC_TRY_COMPILE_AND_LINK([
-#include <iostream>
-using namespace std;
-],[
-  cout << "Hello World" << endl;
-], eval "ac_cv_check_std_namespace=yes", eval "ac_cv_check_std_namespace=no")dnl
-])dnl
-if eval "test \"`echo '$ac_cv_check_std_namespace'`\" = yes"; then
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(HAVE_STD_NAMESPACE)
-else
-  AC_MSG_RESULT(no)
-fi
-])
-
-
 dnl AC_CHECK_GNU_LIBTOOL checks whether libtool is GNU libtool.
 dnl   This macro requires that 'libtool' exists in the current path,
 dnl   i.e. AC_CHECK_PROGS(LIBTOOL, libtool, :) should be executed and evaluated
@@ -514,75 +490,6 @@ fi
 ])
 
 
-dnl AC_CHECK_INTP_ACCEPT checks if the prototype for accept()
-dnl   specifies arguments 2-4 to be int* instead of size_t *.
-dnl
-dnl AC_CHECK_INTP_ACCEPT(HEADER-FILE..., ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
-AC_DEFUN(AC_CHECK_INTP_ACCEPT,
-[AC_MSG_CHECKING([ifelse([$1], , [if accept() needs int* parameters],
-[if accept() needs int* parameters (in $1)])])
-AH_TEMPLATE(HAVE_INTP_ACCEPT, [Define if your system declares argument 3 of accept()
-   as int * instead of size_t * or socklen_t *.])
-ifelse([$1], , [ac_includes=""
-],
-[ac_includes=""
-for ac_header in $1
-do
-  ac_includes="$ac_includes
-#include<$ac_header>"
-done])
-AC_CACHE_VAL(ac_cv_prototype_intp_accept,
-[AC_TRY_COMPILE(
-[#ifdef __cplusplus
-extern "C" {
-#endif
-$ac_includes
-#ifdef __cplusplus
-}
-#endif
-]
-,
-[
-  int i;
-  struct sockaddr *addr;
-  size_t addrlen;
-
-  addr = 0;
-  addrlen = 0;
-  i = accept(1, addr, &addrlen);
-],
-eval "ac_cv_prototype_intp_accept=no",
-[AC_TRY_COMPILE(
-[#ifdef __cplusplus
-extern "C" {
-#endif
-$ac_includes
-#ifdef __cplusplus
-}
-#endif
-]
-,
-[
-  int i;
-  struct sockaddr *addr;
-  int addrlen;
-
-  addr = 0;
-  addrlen = 0;
-  i = accept(1, addr, &addrlen);
-],
-eval "ac_cv_prototype_intp_accept=yes", eval "ac_cv_prototype_intp_accept=no")])])
-if eval "test \"`echo $ac_cv_prototype_intp_accept`\" = yes"; then
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(HAVE_INTP_ACCEPT)
-  ifelse([$2], , :, [$2])
-else
-  AC_MSG_RESULT(no)
-  ifelse([$3], , , [$3])
-fi
-])
-
-
 dnl AC_CHECK_PTHREAD_OPTION checks whether the compiler requires the
 dnl -pthread option to correctly link code containing posix thread calls.
 dnl This is true for example on FreeBSD.
@@ -680,105 +587,6 @@ fi
 ])
 
 
-dnl AC_CHECK_INTP_GETSOCKOPT checks if the prototype for getsockopt()
-dnl   specifies arguments 5 to be int* instead of size_t *.
-dnl
-dnl AC_CHECK_INTP_GETSOCKOPT(HEADER-FILE..., ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
-AC_DEFUN(AC_CHECK_INTP_GETSOCKOPT,
-[AC_MSG_CHECKING([ifelse([$1], , [if getsockopt() needs int* parameters],
-[if getsockopt() needs int* parameters (in $1)])])
-AH_TEMPLATE(HAVE_INTP_GETSOCKOPT, [Define if your system declares argument 5 of getsockopt()
-   as int * instead of size_t * or socklen_t.])
-ifelse([$1], , [ac_includes=""
-],
-[ac_includes=""
-for ac_header in $1
-do
-  ac_includes="$ac_includes
-#include<$ac_header>"
-done])
-AC_CACHE_VAL(ac_cv_prototype_intp_getsockopt,
-[AC_TRY_COMPILE(
-[#ifdef __cplusplus
-extern "C" {
-#endif
-$ac_includes
-#ifdef __cplusplus
-}
-#endif
-]
-,
-[
-  int i;
-  size_t optlen;
-  i = getsockopt(0, 0, 0, 0, &optlen);
-],
-eval "ac_cv_prototype_intp_getsockopt=no",
-[AC_TRY_COMPILE(
-[#ifdef __cplusplus
-extern "C" {
-#endif
-$ac_includes
-#ifdef __cplusplus
-}
-#endif
-]
-,
-[
-  int i;
-  int optlen;
-  i = getsockopt(0, 0, 0, 0, &optlen);
-],
-eval "ac_cv_prototype_intp_getsockopt=yes", eval "ac_cv_prototype_intp_getsockopt=no")])])
-if eval "test \"`echo $ac_cv_prototype_intp_getsockopt`\" = yes"; then
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(HAVE_INTP_GETSOCKOPT)
-  ifelse([$2], , :, [$2])
-else
-  AC_MSG_RESULT(no)
-  ifelse([$3], , , [$3])
-fi
-])
-
-
-dnl AC_CXX_STD_NOTHROW checks if the compiler supports non-throwing new using
-dnl std::nothrow.
-dnl
-AC_DEFUN([AC_CXX_STD_NOTHROW],
-[AH_TEMPLATE(HAVE_STD__NOTHROW, [Define if the compiler supports std::nothrow.])
-AC_CACHE_CHECK(whether the compiler supports std::nothrow,
-ac_cv_cxx_std_nothrow,
-[AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([#include <new>],[int *i = new (std::nothrow) int],
- ac_cv_cxx_std_nothrow=yes, ac_cv_cxx_std_nothrow=no)
- AC_LANG_RESTORE
-])
-if test "$ac_cv_cxx_std_nothrow" = yes; then
-  AC_DEFINE(HAVE_STD__NOTHROW)
-fi
-])
-
-
-dnl AC_CXX_NOTHROW_DELETE checks if the compiler supports non-throwing delete using
-dnl std::nothrow.
-dnl
-AC_DEFUN([AC_CXX_NOTHROW_DELETE],
-[AH_TEMPLATE(HAVE_NOTHROW_DELETE, [Define if the compiler supports operator delete (std::nothrow).])
-AC_CACHE_CHECK(whether the compiler supports operator delete (std::nothrow),
-ac_cv_cxx_nothrow_delete,
-[AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([#include <new>],[int *i = new (std::nothrow) int; operator delete (i,std::nothrow)],
- ac_cv_cxx_nothrow_delete=yes, ac_cv_cxx_nothrow_delete=no)
- AC_LANG_RESTORE
-])
-if test "$ac_cv_cxx_nothrow_delete" = yes; then
-  AC_DEFINE(HAVE_NOTHROW_DELETE)
-fi
-])
-
-
 dnl AC_CXX_STATIC_ASSERT checks if the compiler supports static_assert.
 dnl
 AC_DEFUN([AC_CXX_STATIC_ASSERT],