blob: 47e4d3cbaa314993a0db80bdadc51e051f8e6ec7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_cxx_have_valarray.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CXX_HAVE_VALARRAY
#
# DESCRIPTION
#
# If the compiler has valarray<T>, define HAVE_VALARRAY.
#
# 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_HAVE_VALARRAY], [AX_CXX_HAVE_VALARRAY])
AC_DEFUN([AX_CXX_HAVE_VALARRAY],
[AC_CACHE_CHECK(whether the compiler has valarray<T>,
ax_cv_cxx_have_valarray,
[AC_REQUIRE([AX_CXX_NAMESPACES])
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <valarray>
#ifdef HAVE_NAMESPACES
using namespace std;
#endif]], [[valarray<float> x(100); return 0;]])],
[ax_cv_cxx_have_valarray=yes], [ax_cv_cxx_have_valarray=no])
AC_LANG_POP([C++])
])
if test "$ax_cv_cxx_have_valarray" = yes; then
AC_DEFINE(HAVE_VALARRAY,,[define if the compiler has valarray<T>])
fi
])
|
