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|
#
# check if CXX provides C++11 support with CXXFLAGS, possibly by appending -std=c++11 to CXXFLAGS
#
AC_DEFUN([ACX_CHECK_CPP11_GENERAL], [
AC_LANG_SAVE
AC_LANG([C++])
acx_have_cxx11=no
AC_MSG_CHECKING([CXX for general C++11 support])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <vector>
#include <iostream>
#include "$srcdir/include/libint2/util/cxxstd.h"
#if LIBINT2_CPLUSPLUS_STD < 2011
# error "no C++11 support"
#endif
auto f(int x, double y) -> decltype(x*y) {
return x*y;
}
]],
[[
std::vector<double> reals(10, 0.0);
for (const auto &i: reals) {
std::cout << i << "\n";
}
]]
)
],
[acx_have_cxx11=yes
AC_DEFINE(LIBINT_HAS_CXX11)
AC_MSG_RESULT([yes])
]
)
# if not found, try adding -std flag
if test "X$acx_have_cxx11" = "Xno"; then
old_CXXFLAGS=$CXXFLAGS
CXXFLAGS="$CXXFLAGS -std=c++11"
CXXFLAGS_ADDED_DASHSTD=1
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <vector>
#include <iostream>
#include "$srcdir/include/libint2/util/cxxstd.h"
#if LIBINT2_CPLUSPLUS_STD < 2011
# error "no C++11 support"
#endif
auto f(int x, double y) -> decltype(x*y) {
return x*y;
}
]],
[[
std::vector<double> reals(10, 0.0);
for (const auto &i: reals) {
std::cout << i << "\n";
}
]]
)
],
[acx_have_cxx11=yes
AC_MSG_RESULT([yes (with -std=c++11)])
AC_DEFINE(LIBINT_HAS_CXX11)
],
[
AC_MSG_RESULT([no])
CXXFLAGS=$old_CXXFLAGS
]
)
fi
AC_LANG_RESTORE
])
#
# check if CXXGEN provides C++11 support with CXXGENFLAGS, without any additional flags
#
AC_DEFUN([ACX_CHECK_CPP11_CXXGEN], [
AC_LANG_SAVE
AC_LANG([C++])
AC_MSG_CHECKING([CXXGEN for general C++11 support])
ref_CXX=$CXX
CXX=$CXXGEN
ref_CXXFLAGS=$CXXFLAGS
CXXFLAGS=$CXXGENFLAGS
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <vector>
#include <iostream>
#include "$srcdir/include/libint2/util/cxxstd.h"
#if LIBINT2_CPLUSPLUS_STD < 2011
# error "no C++11 support"
#endif
auto f(int x, double y) -> decltype(x*y) {
return x*y;
}
]],
[[
std::vector<double> reals(10, 0.0);
for (const auto& i: reals) {
std::cout << i << "\n";
}
]]
)
],
[
CXXGEN_SUPPORTS_CPP11=yes
AC_DEFINE(LIBINT_HAS_CXX11_CXXGEN)
AC_MSG_RESULT([yes])
],
[
CXXGEN_SUPPORTS_CPP11=no
AC_MSG_RESULT([no])
]
)
AC_SUBST(CXXGEN_SUPPORTS_CPP11)
# revert CXX and CXXFLAGS
CXX=$ref_CXX
CXXFLAGS=$ref_CXXFLAGS
AC_LANG_RESTORE
])
# borrowed shamelessly from MADNESS (GPLv3)
# written by Justus Calvin (justus.c79@gmail.com)
AC_DEFUN([ACX_CHECK_SHARED_PTR], [
AC_LANG_SAVE
AC_LANG([C++])
# Check for shared_ptr in std namespace
AC_MSG_CHECKING([CXX for shared_ptr])
acx_shared_ptr=no
# Check for std::shared_ptr in <memory>
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <memory>]],
[[std::shared_ptr<int> p;]]
)
],
[
AC_DEFINE([LIBINT_USE_MEMORY],[1],[define if Libint is using <memory>.])
AC_DEFINE([LIBINT_HAS_STD_SHARED_PTR],[1],[define if std::shared_ptr is available.])
acx_shared_ptr=yes
]
)
# Check for std::tr1::shared_ptr in <memory> unless
# disabled by user
if test "$enable_cpptr1" = yes; then
if test "$acx_shared_ptr" = no; then
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <memory>]],
[[std::tr1::shared_ptr<int> p;]]
)
],
[
AC_DEFINE([LIBINT_USE_MEMORY],[1],[define if Libint is using <memory>.])
AC_DEFINE([LIBINT_HAS_STD_TR1_SHARED_PTR],[1],[define if std::tr1::shared_ptr is available.])
acx_shared_ptr=yes
]
)
fi
# Check for std::tr1::shared_ptr in <tr1/memory>
if test "$acx_shared_ptr" = no; then
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <tr1/memory>]],
[[std::tr1::shared_ptr<int> p;]]
)
],
[
AC_DEFINE([LIBINT_USE_TR1_MEMORY],[1],[define if Libint is using <tr1/memory>.])
AC_DEFINE([LIBINT_HAS_STD_TR1_SHARED_PTR],[1],[define if std::tr1::shared_ptr is available.])
acx_shared_ptr=yes
]
)
fi
fi
# Check if we should use boost tr1 memory
if test "$acx_with_boost$acx_shared_ptr" = yesno; then
AC_DEFINE([LIBINT_USE_BOOST_TR1_MEMORY_HPP],[1],[define if Libint is using <boost/tr1/memory.hpp>.])
AC_DEFINE([LIBINT_HAS_STD_TR1_SHARED_PTR],[1],[define if std::tr1::shared_ptr is available.])
acx_shared_ptr=yes
fi
# post shared_ptr results
AC_MSG_RESULT([$acx_shared_ptr])
if test "$acx_shared_ptr" = no; then
AC_MSG_WARN([std::shared_ptr and std::tr1::shared_ptr not found ... using default implementation])
fi
#Check for std::make_shared and std::allocate_shared
acx_std_make_shared=no
AC_MSG_CHECKING([CXX for std::make_shared and std::allocate_shared])
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <memory>]],
[[using ::std::make_shared; using ::std::allocate_shared;]]
)
],
[
AC_DEFINE([LIBINT_HAS_STD_MAKE_SHARED],[1],
[define if std::make_shared and std::allocate_shared are available.])
acx_std_make_shared=yes
]
)
# post make_shared results
AC_MSG_RESULT([$acx_std_make_shared])
AC_LANG_RESTORE
])
AC_DEFUN([ACX_CHECK_TYPE_TRAITS], [
AC_LANG_SAVE
AC_LANG([C++])
# Check for type traits in <type_traits> and std namespace
AC_MSG_CHECKING([CXX for type_traits])
acx_type_traits=no
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <type_traits>]],
[[typedef std::is_same<int, double> sameT;]]
)
],
[
AC_DEFINE([LIBINT_USE_TYPE_TRAITS],[1],[define if Libint is using <type_traits>.])
AC_DEFINE([LIBINT_HAS_STD_TYPE_TRAITS],[1],[define if std type traits are available.])
acx_type_traits=yes
]
)
# look in tr1 unless disabled by the user
if test "$enable_cpptr1" = yes; then
if test "$acx_type_traits" = no; then
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <type_traits>]],
[[typedef std::tr1::is_same<int, double> sameT;]]
)
],
[
AC_DEFINE([LIBINT_USE_TYPE_TRAITS],[1],[define if Libint is using <type_traits>.])
AC_DEFINE([LIBINT_HAS_STD_TR1_TYPE_TRAITS],[1],[define if std::tr1 type traits are available.])
acx_type_traits=yes
]
)
fi
if test "$acx_type_traits" = no; then
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <tr1/type_traits>]],
[[typedef std::tr1::is_same<int, double> sameT;]]
)
],
[
AC_DEFINE([LIBINT_USE_TR1_TYPE_TRAITS],[1],[define if Libint is using <tr1/type_traits>.])
AC_DEFINE([LIBINT_HAS_STD_TR1_TYPE_TRAITS],[1],[define if std::tr1 type traits are available.])
acx_type_traits=yes
]
)
fi
fi
# Check if we should use boost tr1 type_traits
if test "$acx_with_boost$acx_type_traits" = yesno; then
AC_DEFINE([LIBINT_USE_BOOST_TR1_TYPE_TRAITS_HPP],[1],[define if Libint is using <boost/tr1/type_traits.hpp>.])
AC_DEFINE([LIBINT_HAS_STD_TR1_TYPE_TRAITS],[1],[define if std::tr1 type traits are available.])
acx_type_traits=yes
fi
# post type traits results
AC_MSG_RESULT([$acx_type_traits])
if test "$acx_type_traits" = no; then
AC_MSG_WARN([std or std::tr1 type traits not found ... using default implentation])
fi
AC_LANG_RESTORE
])
AC_DEFUN([ACX_CHECK_ARRAY], [
AC_LANG_SAVE
AC_LANG([C++])
# Check for array in std namespace
AC_MSG_CHECKING([CXX for array])
acx_array=no
# Check for std::array in <array>
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <array>]],
[[std::array<int,10> a;]]
)
],
[
AC_DEFINE([LIBINT_USE_ARRAY],[1],[define if Libint is using <array>.])
AC_DEFINE([LIBINT_HAS_STD_ARRAY],[1],[define if std::array is available.])
AC_DEFINE([LIBINT_ARRAY_HAS_FILL],[1],[define if array has fill member function.])
acx_array=yes
]
)
# Check for std::tr1::array in <array>
if test "$enable_cpptr1" = yes; then
if test "$acx_array" = no; then
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <array>]],
[[std::tr1::array<int,10> a;]]
)
],
[
AC_DEFINE([LIBINT_USE_ARRAY],[1],[define if Libint is using <array>.])
AC_DEFINE([LIBINT_HAS_STD_TR1_ARRAY],[1],[define if std::tr1::array is available.])
# Check to see if array has fill function
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <array>]],
[[std::tr1::array<int,10> a; a.fill(0);]]
)
],
[AC_DEFINE([LIBINT_ARRAY_HAS_FILL],[1],[define if array has fill member function.])]
)
acx_array=yes
]
)
fi
# Check for std::tr1::array in <tr1/array>
if test "$acx_array" = no; then
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <tr1/array>]],
[[std::tr1::array<int,10> a;]]
)
],
[
AC_DEFINE([LIBINT_USE_TR1_ARRAY],[1],[define if Libint is using <tr1/array>.])
AC_DEFINE([LIBINT_HAS_STD_TR1_ARRAY],[1],[define if std::tr1::array is available.])
# Check to see if array has fill function
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <tr1/array>]],
[[std::tr1::array<int,10> a; a.fill(0);]]
)
],
[AC_DEFINE([LIBINT_ARRAY_HAS_FILL],[1],[define if array has fill member function.])]
)
acx_array=yes
]
)
fi
fi
# Check if we should use boost tr1 array
if test "$acx_with_boost$acx_array" = yesno; then
AC_DEFINE([LIBINT_USE_BOOST_TR1_ARRAY_HPP],[1],[define if Libint is using <boost/tr1/array.hpp>.])
AC_DEFINE([LIBINT_HAS_STD_TR1_ARRAY],[1],[define if std::tr1::array is available.])
# Check to see if array has fill function
AC_COMPILE_IFELSE(
[
AC_LANG_PROGRAM(
[[#include <tr1/array>]],
[[std::tr1::array<int,10> a; a.fill(0);]]
)
],
[AC_DEFINE([LIBINT_ARRAY_HAS_FILL],[1],[define if array has fill member function.])]
)
acx_array=yes
fi
# post array results
AC_MSG_RESULT([$acx_array])
if test "$acx_array" = no; then
AC_MSG_WARN([std::array or std::tr1::array not supported ... using default implementation])
fi
AC_LANG_RESTORE
])
AC_DEFUN([ACX_CHECK_CPP11],
[
ACX_CHECK_CPP11_GENERAL
ACX_CHECK_SHARED_PTR
ACX_CHECK_TYPE_TRAITS
ACX_CHECK_ARRAY
ACX_CHECK_CPP11_CXXGEN
])
|
