17 lines
562 B
Plaintext
17 lines
562 B
Plaintext
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dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_const_cast.html
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dnl
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AC_DEFUN([AC_CXX_CONST_CAST],
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[AC_CACHE_CHECK(whether the compiler supports const_cast<>,
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ac_cv_cxx_const_cast,
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[AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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AC_TRY_COMPILE(,[int x = 0;const int& y = x;int& z = const_cast<int&>(y);return z;],
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ac_cv_cxx_const_cast=yes, ac_cv_cxx_const_cast=no)
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AC_LANG_RESTORE
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])
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if test "$ac_cv_cxx_const_cast" = yes; then
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AC_DEFINE(HAVE_CONST_CAST,,[define if the compiler supports const_cast<>])
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fi
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])
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