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AC_CXX_HEADER_TR1_UNORDERED_MAP
Check whether the TR1 include <unordered_map> exists and define HAVE_TR1_UNORDERED_MAP if it does.
Benjamin Kosnik <bkoz@redhat.com>
2008-04-17
AC_DEFUN([AC_CXX_HEADER_TR1_UNORDERED_MAP], [ AC_CACHE_CHECK(for tr1/unordered_map, ac_cv_cxx_tr1_unordered_map, [AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE([#include <tr1/unordered_map>], [using std::tr1::unordered_map;], ac_cv_cxx_tr1_unordered_map=yes, ac_cv_cxx_tr1_unordered_map=no) AC_LANG_RESTORE ]) if test "$ac_cv_cxx_tr1_unordered_map" = yes; then AC_DEFINE(HAVE_TR1_UNORDERED_MAP,,[Define if tr1/unordered_map is present. ]) fi ])
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