You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
25 lines
779 B
25 lines
779 B
dnl @synopsis AC_CXX_HAVE_NAMESPACES
|
|
dnl
|
|
dnl If the compiler can prevent names clashes using namespaces, define
|
|
dnl HAVE_NAMESPACES.
|
|
dnl
|
|
dnl @category Cxx
|
|
dnl @author Todd Veldhuizen
|
|
dnl @author Luc Maisonobe <luc@spaceroots.org>
|
|
dnl @version 2004-02-04
|
|
dnl @license AllPermissive
|
|
|
|
AC_DEFUN([AC_CXX_HAVE_NAMESPACES],
|
|
[AC_CACHE_CHECK(whether the compiler implements namespaces,
|
|
ac_cv_cxx_have_namespaces,
|
|
[AC_LANG_SAVE
|
|
AC_LANG_CPLUSPLUS
|
|
AC_TRY_COMPILE([namespace Outer { namespace Inner { int i = 0; }}],
|
|
[using namespace Outer::Inner; return i;],
|
|
ac_cv_cxx_have_namespaces=yes, ac_cv_cxx_have_namespaces=no)
|
|
AC_LANG_RESTORE
|
|
])
|
|
if test "$ac_cv_cxx_have_namespaces" = yes; then
|
|
AC_DEFINE(HAVE_NAMESPACES,,[define if the compiler implements namespaces])
|
|
fi
|
|
])
|