17 lines
562 B
Plaintext
17 lines
562 B
Plaintext
dnl Available from the GNU Autoconf Macro Archive at:
|
|
dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_const_cast.html
|
|
dnl
|
|
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
|
|
])
|