1# C++ checks to determine what style of headers to use and
2# whether to use "using" clauses.
3
4AC_DEFUN(AC_CXX_HAVE_STDHEADERS, [
5AC_SUBST(cxx_have_stdheaders)
6AC_CACHE_CHECK([whether C++ supports the ISO C++ standard includes],
7db_cv_cxx_have_stdheaders,
8[AC_LANG_SAVE
9 AC_LANG_CPLUSPLUS
10 AC_TRY_COMPILE([#include <iostream>
11],[std::ostream *o; return 0;],
12 db_cv_cxx_have_stdheaders=yes, db_cv_cxx_have_stdheaders=no)
13 AC_LANG_RESTORE
14])
15if test "$db_cv_cxx_have_stdheaders" = yes; then
16	cxx_have_stdheaders="#define	HAVE_CXX_STDHEADERS 1"
17fi])
18