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- # ===========================================================================
- # https://www.gnu.org/software/autoconf-archive/ax_cxx_templates.html
- # ===========================================================================
- #
- # SYNOPSIS
- #
- # AX_CXX_TEMPLATES
- #
- # DESCRIPTION
- #
- # If the compiler supports basic templates, define HAVE_TEMPLATES.
- #
- # LICENSE
- #
- # Copyright (c) 2008 Todd Veldhuizen
- # Copyright (c) 2008 Luc Maisonobe <luc@spaceroots.org>
- #
- # Copying and distribution of this file, with or without modification, are
- # permitted in any medium without royalty provided the copyright notice
- # and this notice are preserved. This file is offered as-is, without any
- # warranty.
-
- #serial 8
-
- AU_ALIAS([AC_CXX_TEMPLATES], [AX_CXX_TEMPLATES])
- AC_DEFUN([AX_CXX_TEMPLATES],
- [dnl
- AC_CACHE_CHECK([whether the compiler supports basic templates],
- [ax_cv_cxx_templates],
- [AC_LANG_PUSH([C++])
- AC_COMPILE_IFELSE([dnl
- AC_LANG_PROGRAM([
- template<class T> class A {public:A(){};};
- template<class T> void f(const A<T>& ){};
- ],
- [A<double> d; A<int> i; f(d); f(i); return 0;])],
- [ax_cv_cxx_templates=yes],
- [ax_cv_cxx_templates=no])
- AC_LANG_POP([C++])
- ])
- AS_IF([test "X$ax_cv_cxx_templates" = "Xyes"],
- [AC_DEFINE(HAVE_TEMPLATES,,[define if the compiler supports basic templates])])
- ])
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