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AC_CXX_CONST_CAST
If the compiler supports const_cast<>, define HAVE_CONST_CAST.
1.2 (last modified: 2000-07-19)
Luc Maisonobe
AC_DEFUN([AC_CXX_CONST_CAST], [AC_CACHE_CHECK(whether the compiler supports const_cast<>, ac_cv_cxx_const_cast, [AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE(,[int x = 0;const int& y = x;int& z = const_cast<int&>(y);return z;], ac_cv_cxx_const_cast=yes, ac_cv_cxx_const_cast=no) AC_LANG_RESTORE ]) if test "$ac_cv_cxx_const_cast" = yes; then AC_DEFINE(HAVE_CONST_CAST,,[define if the compiler supports const_cast<>]) fi ])