24 lines
667 B
Plaintext
24 lines
667 B
Plaintext
dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_std.html
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dnl
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AC_DEFUN([AC_CXX_HAVE_STD],
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[AC_CACHE_CHECK(whether the compiler supports ISO C++ standard library,
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ac_cv_cxx_have_std,
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[AC_REQUIRE([AC_CXX_NAMESPACES])
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AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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AC_TRY_COMPILE([#include <iostream>
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#include <map>
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#include <iomanip>
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#include <cmath>
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#ifdef HAVE_NAMESPACES
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using namespace std;
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#endif],[return 0;],
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ac_cv_cxx_have_std=yes, ac_cv_cxx_have_std=no)
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AC_LANG_RESTORE
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])
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if test "$ac_cv_cxx_have_std" = yes; then
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AC_DEFINE(HAVE_STD,,[define if the compiler supports ISO C++ standard library])
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fi
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])
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