Macro: ac_cxx_have_std

Back to the Main Page. | Download the M4 Source.

# ac_cxx_have_std

## Synopsis

`AC_CXX_HAVE_STD`

## Version

1.1.1.1 (2001/07/26) C++_Support @ ac-archive-0.5.32

## Author

Luc Maisonobe

## Description

If the compiler supports ISO C++ standard library (i.e., can include the files iostream, map, iomanip and cmath}), define HAVE_STD.

## M4 Source Code

    AC_DEFUN([AC_CXX_HAVE_STD],
    [AC_CACHE_CHECK(whether the compiler supports ISO C++ standard library,
    ac_cv_cxx_have_std,
    [AC_REQUIRE([AC_CXX_NAMESPACES])
     AC_LANG_SAVE
     AC_LANG_CPLUSPLUS
     AC_TRY_COMPILE([#include <iostream>
    #include <map>
    #include <iomanip>
    #include <cmath>
    #ifdef HAVE_NAMESPACES
    using namespace std;
    #endif],[return 0;],
     ac_cv_cxx_have_std=yes, ac_cv_cxx_have_std=no)
     AC_LANG_RESTORE
    ])
    if test "$ac_cv_cxx_have_std" = yes; then
      AC_DEFINE(HAVE_STD,,[define if the compiler supports ISO C++ standard library])
    fi
    ])