56 lines
1.6 KiB
Plaintext
56 lines
1.6 KiB
Plaintext
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dnl
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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_have_ext_hash_set.html
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dnl
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dnl Modified by Christian Gagne, August 01, 2007
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dnl Now check for availability in namespaces stdext (MSVC++) and __gnu_cxx (GCC 3.1-4)
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dnl
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AC_DEFUN([AC_CXX_STD_HASHSET],[
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AC_CACHE_CHECK(whether the compiler supports std::hash_set,
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ac_cv_cxx_std_hashset,
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[AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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AC_TRY_COMPILE([#include <hash_set>
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using std::hash_set;],
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[],
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ac_cv_cxx_std_hashset=yes, ac_cv_cxx_std_hashset=no)
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AC_LANG_RESTORE
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])
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if test "ac_cv_cxx_std_hashset" = yes; then
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AC_DEFINE(HAVE_STD_HASHSET,,[define if the compiler supports std::hash_set])
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fi
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])
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AC_DEFUN([AC_CXX_GNUCXX_HASHSET],[
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AC_CACHE_CHECK(whether the compiler supports __gnu_cxx::hash_set,
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ac_cv_cxx_gnucxx_hashset,
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[AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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AC_TRY_COMPILE([#include <ext/hash_set>
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using __gnu_cxx::hash_set;],
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[],
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ac_cv_cxx_gnucxx_hashset=yes, ac_cv_cxx_gnucxx_hashset=no)
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AC_LANG_RESTORE
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])
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if test "$ac_cv_cxx_gnucxx_hashset" = yes; then
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AC_DEFINE(HAVE_GNUCXX_HASHSET,,[define if the compiler supports __gnu_cxx::hash_set])
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fi
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])
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AC_DEFUN([AC_CXX_STDEXT_HASHSET],[
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AC_CACHE_CHECK(whether the compiler supports stdext::hash_set,
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ac_cv_cxx_stdext_hashset,
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[AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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AC_TRY_COMPILE([#include <stdext/hash_set>
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using stdext::hash_set;],
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[],
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ac_cv_cxx_stdext_hashset=yes, ac_cv_cxx_stdext_hashset=no)
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AC_LANG_RESTORE
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])
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if test "ac_cv_cxx_stdext_hashset" = yes; then
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AC_DEFINE(HAVE_STDEXT_HASHSET,,[define if the compiler supports stdext::hash_set])
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fi
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])
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