| [Macro Index Page] | [Download M4 Source] |
AC_CXX_EXPLICIT_INSTANTIATIONS
If the C++ compiler supports explicit instanciations syntax, define HAVE_INSTANTIATIONS.
1.3 (last modified: 2004-02-04)
Todd Veldhuizen and Luc Maisonobe <luc@spaceroots.org>
AC_DEFUN([AC_CXX_EXPLICIT_INSTANTIATIONS],
[AC_CACHE_CHECK(whether the compiler supports explicit instantiations,
ac_cv_cxx_explinst,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([template <class T> class A { T t; }; template class A<int>;],
[], ac_cv_cxx_explinst=yes, ac_cv_cxx_explinst=no)
AC_LANG_RESTORE
])
if test "$ac_cv_cxx_explinst" = yes; then
AC_DEFINE(HAVE_INSTANTIATIONS,,
[define if the compiler supports explicit instantiations])
fi
])