diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/ax_cxx_compile_stdcxx.m4 | 982 | ||||
| -rw-r--r-- | m4/ax_cxx_compile_stdcxx_11.m4 | 39 | ||||
| -rw-r--r-- | m4/ax_gcc_func_attribute.m4 | 238 | ||||
| -rw-r--r-- | m4/boost.m4 | 1568 |
4 files changed, 2827 insertions, 0 deletions
diff --git a/m4/ax_cxx_compile_stdcxx.m4 b/m4/ax_cxx_compile_stdcxx.m4 new file mode 100644 index 0000000..acc0db2 --- /dev/null +++ b/m4/ax_cxx_compile_stdcxx.m4 @@ -0,0 +1,982 @@ +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_CXX_COMPILE_STDCXX(VERSION, [ext|noext], [mandatory|optional]) +# +# DESCRIPTION +# +# Check for baseline language coverage in the compiler for the specified +# version of the C++ standard. If necessary, add switches to CXX and +# CXXCPP to enable support. VERSION may be '11' (for the C++11 standard) +# or '14' (for the C++14 standard). +# +# The second argument, if specified, indicates whether you insist on an +# extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g. +# -std=c++11). If neither is specified, you get whatever works, with +# preference for an extended mode. +# +# The third argument, if specified 'mandatory' or if left unspecified, +# indicates that baseline support for the specified C++ standard is +# required and that the macro should error out if no mode with that +# support is found. If specified 'optional', then configuration proceeds +# regardless, after defining HAVE_CXX${VERSION} if and only if a +# supporting mode is found. +# +# LICENSE +# +# Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com> +# Copyright (c) 2012 Zack Weinberg <zackw@panix.com> +# Copyright (c) 2013 Roy Stogner <roystgnr@ices.utexas.edu> +# Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com> +# Copyright (c) 2015 Paul Norman <penorman@mac.com> +# Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu> +# Copyright (c) 2016 Krzesimir Nowak <qdlacz@gmail.com> +# +# 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 7 + +dnl This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro +dnl (serial version number 13). + +AX_REQUIRE_DEFINED([AC_MSG_WARN]) +AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl + m4_if([$1], [11], [ax_cxx_compile_alternatives="11 0x"], + [$1], [14], [ax_cxx_compile_alternatives="14 1y"], + [$1], [17], [ax_cxx_compile_alternatives="17 1z"], + [m4_fatal([invalid first argument `$1' to AX_CXX_COMPILE_STDCXX])])dnl + m4_if([$2], [], [], + [$2], [ext], [], + [$2], [noext], [], + [m4_fatal([invalid second argument `$2' to AX_CXX_COMPILE_STDCXX])])dnl + m4_if([$3], [], [ax_cxx_compile_cxx$1_required=true], + [$3], [mandatory], [ax_cxx_compile_cxx$1_required=true], + [$3], [optional], [ax_cxx_compile_cxx$1_required=false], + [m4_fatal([invalid third argument `$3' to AX_CXX_COMPILE_STDCXX])]) + AC_LANG_PUSH([C++])dnl + ac_success=no + AC_CACHE_CHECK(whether $CXX supports C++$1 features by default, + ax_cv_cxx_compile_cxx$1, + [AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])], + [ax_cv_cxx_compile_cxx$1=yes], + [ax_cv_cxx_compile_cxx$1=no])]) + if test x$ax_cv_cxx_compile_cxx$1 = xyes; then + ac_success=yes + fi + + m4_if([$2], [noext], [], [dnl + if test x$ac_success = xno; then + for alternative in ${ax_cxx_compile_alternatives}; do + switch="-std=gnu++${alternative}" + cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch]) + AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch, + $cachevar, + [ac_save_CXX="$CXX" + CXX="$CXX $switch" + AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])], + [eval $cachevar=yes], + [eval $cachevar=no]) + CXX="$ac_save_CXX"]) + if eval test x\$$cachevar = xyes; then + CXX="$CXX $switch" + if test -n "$CXXCPP" ; then + CXXCPP="$CXXCPP $switch" + fi + ac_success=yes + break + fi + done + fi]) + + m4_if([$2], [ext], [], [dnl + if test x$ac_success = xno; then + dnl HP's aCC needs +std=c++11 according to: + dnl http://h21007.www2.hp.com/portal/download/files/unprot/aCxx/PDF_Release_Notes/769149-001.pdf + dnl Cray's crayCC needs "-h std=c++11" + for alternative in ${ax_cxx_compile_alternatives}; do + for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}"; do + cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch]) + AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch, + $cachevar, + [ac_save_CXX="$CXX" + CXX="$CXX $switch" + AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])], + [eval $cachevar=yes], + [eval $cachevar=no]) + CXX="$ac_save_CXX"]) + if eval test x\$$cachevar = xyes; then + CXX="$CXX $switch" + if test -n "$CXXCPP" ; then + CXXCPP="$CXXCPP $switch" + fi + ac_success=yes + break + fi + done + if test x$ac_success = xyes; then + break + fi + done + fi]) + AC_LANG_POP([C++]) + if test x$ax_cxx_compile_cxx$1_required = xtrue; then + if test x$ac_success = xno; then + AC_MSG_ERROR([*** A compiler with support for C++$1 language features is required.]) + fi + fi + if test x$ac_success = xno; then + HAVE_CXX$1=0 + AC_MSG_NOTICE([No compiler with C++$1 support was found]) + else + HAVE_CXX$1=1 + AC_DEFINE(HAVE_CXX$1,1, + [define if the compiler supports basic C++$1 syntax]) + fi + AC_SUBST(HAVE_CXX$1) + m4_if([$1], [17], [AC_MSG_WARN([C++17 is not yet standardized, so the checks may change in incompatible ways anytime])]) +]) + + +dnl Test body for checking C++11 support + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_11], + _AX_CXX_COMPILE_STDCXX_testbody_new_in_11 +) + + +dnl Test body for checking C++14 support + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14], + _AX_CXX_COMPILE_STDCXX_testbody_new_in_11 + _AX_CXX_COMPILE_STDCXX_testbody_new_in_14 +) + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_17], + _AX_CXX_COMPILE_STDCXX_testbody_new_in_11 + _AX_CXX_COMPILE_STDCXX_testbody_new_in_14 + _AX_CXX_COMPILE_STDCXX_testbody_new_in_17 +) + +dnl Tests for new features in C++11 + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[ + +// If the compiler admits that it is not ready for C++11, why torture it? +// Hopefully, this will speed up the test. + +#ifndef __cplusplus + +#error "This is not a C++ compiler" + +#elif __cplusplus < 201103L && !(defined _MSC_VER) + +#error "This is not a C++11 compiler" + +#else + +namespace cxx11 +{ + + namespace test_static_assert + { + + template <typename T> + struct check + { + static_assert(sizeof(int) <= sizeof(T), "not big enough"); + }; + + } + + namespace test_final_override + { + + struct Base + { + virtual void f() {} + }; + + struct Derived : public Base + { + virtual void f() override {} + }; + + } + + namespace test_double_right_angle_brackets + { + + template < typename T > + struct check {}; + + typedef check<void> single_type; + typedef check<check<void>> double_type; + typedef check<check<check<void>>> triple_type; + typedef check<check<check<check<void>>>> quadruple_type; + + } + + namespace test_decltype + { + + int + f() + { + int a = 1; + decltype(a) b = 2; + return a + b; + } + + } + + namespace test_type_deduction + { + + template < typename T1, typename T2 > + struct is_same + { + static const bool value = false; + }; + + template < typename T > + struct is_same<T, T> + { + static const bool value = true; + }; + + template < typename T1, typename T2 > + auto + add(T1 a1, T2 a2) -> decltype(a1 + a2) + { + return a1 + a2; + } + + int + test(const int c, volatile int v) + { + static_assert(is_same<int, decltype(0)>::value == true, ""); + static_assert(is_same<int, decltype(c)>::value == false, ""); + static_assert(is_same<int, decltype(v)>::value == false, ""); + auto ac = c; + auto av = v; + auto sumi = ac + av + 'x'; + auto sumf = ac + av + 1.0; + static_assert(is_same<int, decltype(ac)>::value == true, ""); + static_assert(is_same<int, decltype(av)>::value == true, ""); + static_assert(is_same<int, decltype(sumi)>::value == true, ""); + static_assert(is_same<int, decltype(sumf)>::value == false, ""); + static_assert(is_same<int, decltype(add(c, v))>::value == true, ""); + return (sumf > 0.0) ? sumi : add(c, v); + } + + } + + namespace test_noexcept + { + + int f() { return 0; } + int g() noexcept { return 0; } + + static_assert(noexcept(f()) == false, ""); + static_assert(noexcept(g()) == true, ""); + + } + + namespace test_constexpr + { + + template < typename CharT > + unsigned long constexpr + strlen_c_r(const CharT *const s, const unsigned long acc) noexcept + { + return *s ? strlen_c_r(s + 1, acc + 1) : acc; + } + + template < typename CharT > + unsigned long constexpr + strlen_c(const CharT *const s) noexcept + { + return strlen_c_r(s, 0UL); + } + + static_assert(strlen_c("") == 0UL, ""); + static_assert(strlen_c("1") == 1UL, ""); + static_assert(strlen_c("example") == 7UL, ""); + static_assert(strlen_c("another\0example") == 7UL, ""); + + } + + namespace test_rvalue_references + { + + template < int N > + struct answer + { + static constexpr int value = N; + }; + + answer<1> f(int&) { return answer<1>(); } + answer<2> f(const int&) { return answer<2>(); } + answer<3> f(int&&) { return answer<3>(); } + + void + test() + { + int i = 0; + const int c = 0; + static_assert(decltype(f(i))::value == 1, ""); + static_assert(decltype(f(c))::value == 2, ""); + static_assert(decltype(f(0))::value == 3, ""); + } + + } + + namespace test_uniform_initialization + { + + struct test + { + static const int zero {}; + static const int one {1}; + }; + + static_assert(test::zero == 0, ""); + static_assert(test::one == 1, ""); + + } + + namespace test_lambdas + { + + void + test1() + { + auto lambda1 = [](){}; + auto lambda2 = lambda1; + lambda1(); + lambda2(); + } + + int + test2() + { + auto a = [](int i, int j){ return i + j; }(1, 2); + auto b = []() -> int { return '0'; }(); + auto c = [=](){ return a + b; }(); + auto d = [&](){ return c; }(); + auto e = [a, &b](int x) mutable { + const auto identity = [](int y){ return y; }; + for (auto i = 0; i < a; ++i) + a += b--; + return x + identity(a + b); + }(0); + return a + b + c + d + e; + } + + int + test3() + { + const auto nullary = [](){ return 0; }; + const auto unary = [](int x){ return x; }; + using nullary_t = decltype(nullary); + using unary_t = decltype(unary); + const auto higher1st = [](nullary_t f){ return f(); }; + const auto higher2nd = [unary](nullary_t f1){ + return [unary, f1](unary_t f2){ return f2(unary(f1())); }; + }; + return higher1st(nullary) + higher2nd(nullary)(unary); + } + + } + + namespace test_variadic_templates + { + + template <int...> + struct sum; + + template <int N0, int... N1toN> + struct sum<N0, N1toN...> + { + static constexpr auto value = N0 + sum<N1toN...>::value; + }; + + template <> + struct sum<> + { + static constexpr auto value = 0; + }; + + static_assert(sum<>::value == 0, ""); + static_assert(sum<1>::value == 1, ""); + static_assert(sum<23>::value == 23, ""); + static_assert(sum<1, 2>::value == 3, ""); + static_assert(sum<5, 5, 11>::value == 21, ""); + static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, ""); + + } + + // http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae + // Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function + // because of this. + namespace test_template_alias_sfinae + { + + struct foo {}; + + template<typename T> + using member = typename T::member_type; + + template<typename T> + void func(...) {} + + template<typename T> + void func(member<T>*) {} + + void test(); + + void test() { func<foo>(0); } + + } + +} // namespace cxx11 + +#endif // __cplusplus >= 201103L + +]]) + + +dnl Tests for new features in C++14 + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_14], [[ + +// If the compiler admits that it is not ready for C++14, why torture it? +// Hopefully, this will speed up the test. + +#ifndef __cplusplus + +#error "This is not a C++ compiler" + +#elif __cplusplus < 201402L + +#error "This is not a C++14 compiler" + +#else + +namespace cxx14 +{ + + namespace test_polymorphic_lambdas + { + + int + test() + { + const auto lambda = [](auto&&... args){ + const auto istiny = [](auto x){ + return (sizeof(x) == 1UL) ? 1 : 0; + }; + const int aretiny[] = { istiny(args)... }; + return aretiny[0]; + }; + return lambda(1, 1L, 1.0f, '1'); + } + + } + + namespace test_binary_literals + { + + constexpr auto ivii = 0b0000000000101010; + static_assert(ivii == 42, "wrong value"); + + } + + namespace test_generalized_constexpr + { + + template < typename CharT > + constexpr unsigned long + strlen_c(const CharT *const s) noexcept + { + auto length = 0UL; + for (auto p = s; *p; ++p) + ++length; + return length; + } + + static_assert(strlen_c("") == 0UL, ""); + static_assert(strlen_c("x") == 1UL, ""); + static_assert(strlen_c("test") == 4UL, ""); + static_assert(strlen_c("another\0test") == 7UL, ""); + + } + + namespace test_lambda_init_capture + { + + int + test() + { + auto x = 0; + const auto lambda1 = [a = x](int b){ return a + b; }; + const auto lambda2 = [a = lambda1(x)](){ return a; }; + return lambda2(); + } + + } + + namespace test_digit_separators + { + + constexpr auto ten_million = 100'000'000; + static_assert(ten_million == 100000000, ""); + + } + + namespace test_return_type_deduction + { + + auto f(int& x) { return x; } + decltype(auto) g(int& x) { return x; } + + template < typename T1, typename T2 > + struct is_same + { + static constexpr auto value = false; + }; + + template < typename T > + struct is_same<T, T> + { + static constexpr auto value = true; + }; + + int + test() + { + auto x = 0; + static_assert(is_same<int, decltype(f(x))>::value, ""); + static_assert(is_same<int&, decltype(g(x))>::value, ""); + return x; + } + + } + +} // namespace cxx14 + +#endif // __cplusplus >= 201402L + +]]) + + +dnl Tests for new features in C++17 + +m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_17], [[ + +// If the compiler admits that it is not ready for C++17, why torture it? +// Hopefully, this will speed up the test. + +#ifndef __cplusplus + +#error "This is not a C++ compiler" + +#elif __cplusplus <= 201402L + +#error "This is not a C++17 compiler" + +#else + +#if defined(__clang__) + #define REALLY_CLANG +#else + #if defined(__GNUC__) + #define REALLY_GCC + #endif +#endif + +#include <initializer_list> +#include <utility> +#include <type_traits> + +namespace cxx17 +{ + +#if !defined(REALLY_CLANG) + namespace test_constexpr_lambdas + { + + // TODO: test it with clang++ from git + + constexpr int foo = [](){return 42;}(); + + } +#endif // !defined(REALLY_CLANG) + + namespace test::nested_namespace::definitions + { + + } + + namespace test_fold_expression + { + + template<typename... Args> + int multiply(Args... args) + { + return (args * ... * 1); + } + + template<typename... Args> + bool all(Args... args) + { + return (args && ...); + } + + } + + namespace test_extended_static_assert + { + + static_assert (true); + + } + + namespace test_auto_brace_init_list + { + + auto foo = {5}; + auto bar {5}; + + static_assert(std::is_same<std::initializer_list<int>, decltype(foo)>::value); + static_assert(std::is_same<int, decltype(bar)>::value); + } + + namespace test_typename_in_template_template_parameter + { + + template<template<typename> typename X> struct D; + + } + + namespace test_fallthrough_nodiscard_maybe_unused_attributes + { + + int f1() + { + return 42; + } + + [[nodiscard]] int f2() + { + [[maybe_unused]] auto unused = f1(); + + switch (f1()) + { + case 17: + f1(); + [[fallthrough]]; + case 42: + f1(); + } + return f1(); + } + + } + + namespace test_extended_aggregate_initialization + { + + struct base1 + { + int b1, b2 = 42; + }; + + struct base2 + { + base2() { + b3 = 42; + } + int b3; + }; + + struct derived : base1, base2 + { + int d; + }; + + derived d1 {{1, 2}, {}, 4}; // full initialization + derived d2 {{}, {}, 4}; // value-initialized bases + + } + + namespace test_general_range_based_for_loop + { + + struct iter + { + int i; + + int& operator* () + { + return i; + } + + const int& operator* () const + { + return i; + } + + iter& operator++() + { + ++i; + return *this; + } + }; + + struct sentinel + { + int i; + }; + + bool operator== (const iter& i, const sentinel& s) + { + return i.i == s.i; + } + + bool operator!= (const iter& i, const sentinel& s) + { + return !(i == s); + } + + struct range + { + iter begin() const + { + return {0}; + } + + sentinel end() const + { + return {5}; + } + }; + + void f() + { + range r {}; + + for (auto i : r) + { + [[maybe_unused]] auto v = i; + } + } + + } + + namespace test_lambda_capture_asterisk_this_by_value + { + + struct t + { + int i; + int foo() + { + return [*this]() + { + return i; + }(); + } + }; + + } + + namespace test_enum_class_construction + { + + enum class byte : unsigned char + {}; + + byte foo {42}; + + } + + namespace test_constexpr_if + { + + template <bool cond> + int f () + { + if constexpr(cond) + { + return 13; + } + else + { + return 42; + } + } + + } + + namespace test_selection_statement_with_initializer + { + + int f() + { + return 13; + } + + int f2() + { + if (auto i = f(); i > 0) + { + return 3; + } + + switch (auto i = f(); i + 4) + { + case 17: + return 2; + + default: + return 1; + } + } + + } + +#if !defined(REALLY_CLANG) + namespace test_template_argument_deduction_for_class_templates + { + + // TODO: test it with clang++ from git + + template <typename T1, typename T2> + struct pair + { + pair (T1 p1, T2 p2) + : m1 {p1}, + m2 {p2} + {} + + T1 m1; + T2 m2; + }; + + void f() + { + [[maybe_unused]] auto p = pair{13, 42u}; + } + + } +#endif // !defined(REALLY_CLANG) + + namespace test_non_type_auto_template_parameters + { + + template <auto n> + struct B + {}; + + B<5> b1; + B<'a'> b2; + + } + +#if !defined(REALLY_CLANG) + namespace test_structured_bindings + { + + // TODO: test it with clang++ from git + + int arr[2] = { 1, 2 }; + std::pair<int, int> pr = { 1, 2 }; + + auto f1() -> int(&)[2] + { + return arr; + } + + auto f2() -> std::pair<int, int>& + { + return pr; + } + + struct S + { + int x1 : 2; + volatile double y1; + }; + + S f3() + { + return {}; + } + + auto [ x1, y1 ] = f1(); + auto& [ xr1, yr1 ] = f1(); + auto [ x2, y2 ] = f2(); + auto& [ xr2, yr2 ] = f2(); + const auto [ x3, y3 ] = f3(); + + } +#endif // !defined(REALLY_CLANG) + +#if !defined(REALLY_CLANG) + namespace test_exception_spec_type_system + { + + // TODO: test it with clang++ from git + + struct Good {}; + struct Bad {}; + + void g1() noexcept; + void g2(); + + template<typename T> + Bad + f(T*, T*); + + template<typename T1, typename T2> + Good + f(T1*, T2*); + + static_assert (std::is_same_v<Good, decltype(f(g1, g2))>); + + } +#endif // !defined(REALLY_CLANG) + + namespace test_inline_variables + { + + template<class T> void f(T) + {} + + template<class T> inline T g(T) + { + return T{}; + } + + template<> inline void f<>(int) + {} + + template<> int g<>(int) + { + return 5; + } + + } + +} // namespace cxx17 + +#endif // __cplusplus <= 201402L + +]]) diff --git a/m4/ax_cxx_compile_stdcxx_11.m4 b/m4/ax_cxx_compile_stdcxx_11.m4 new file mode 100644 index 0000000..1733fd8 --- /dev/null +++ b/m4/ax_cxx_compile_stdcxx_11.m4 @@ -0,0 +1,39 @@ +# ============================================================================= +# https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx_11.html +# ============================================================================= +# +# SYNOPSIS +# +# AX_CXX_COMPILE_STDCXX_11([ext|noext], [mandatory|optional]) +# +# DESCRIPTION +# +# Check for baseline language coverage in the compiler for the C++11 +# standard; if necessary, add switches to CXX and CXXCPP to enable +# support. +# +# This macro is a convenience alias for calling the AX_CXX_COMPILE_STDCXX +# macro with the version set to C++11. The two optional arguments are +# forwarded literally as the second and third argument respectively. +# Please see the documentation for the AX_CXX_COMPILE_STDCXX macro for +# more information. If you want to use this macro, you also need to +# download the ax_cxx_compile_stdcxx.m4 file. +# +# LICENSE +# +# Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com> +# Copyright (c) 2012 Zack Weinberg <zackw@panix.com> +# Copyright (c) 2013 Roy Stogner <roystgnr@ices.utexas.edu> +# Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com> +# Copyright (c) 2015 Paul Norman <penorman@mac.com> +# Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu> +# +# 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 18 + +AX_REQUIRE_DEFINED([AX_CXX_COMPILE_STDCXX]) +AC_DEFUN([AX_CXX_COMPILE_STDCXX_11], [AX_CXX_COMPILE_STDCXX([11], [$1], [$2])]) diff --git a/m4/ax_gcc_func_attribute.m4 b/m4/ax_gcc_func_attribute.m4 new file mode 100644 index 0000000..098c9aa --- /dev/null +++ b/m4/ax_gcc_func_attribute.m4 @@ -0,0 +1,238 @@ +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_gcc_func_attribute.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_GCC_FUNC_ATTRIBUTE(ATTRIBUTE) +# +# DESCRIPTION +# +# This macro checks if the compiler supports one of GCC's function +# attributes; many other compilers also provide function attributes with +# the same syntax. Compiler warnings are used to detect supported +# attributes as unsupported ones are ignored by default so quieting +# warnings when using this macro will yield false positives. +# +# The ATTRIBUTE parameter holds the name of the attribute to be checked. +# +# If ATTRIBUTE is supported define HAVE_FUNC_ATTRIBUTE_<ATTRIBUTE>. +# +# The macro caches its result in the ax_cv_have_func_attribute_<attribute> +# variable. +# +# The macro currently supports the following function attributes: +# +# alias +# aligned +# alloc_size +# always_inline +# artificial +# cold +# const +# constructor +# constructor_priority for constructor attribute with priority +# deprecated +# destructor +# dllexport +# dllimport +# error +# externally_visible +# fallthrough +# flatten +# format +# format_arg +# gnu_inline +# hot +# ifunc +# leaf +# malloc +# noclone +# noinline +# nonnull +# noreturn +# nothrow +# optimize +# pure +# sentinel +# sentinel_position +# unused +# used +# visibility +# warning +# warn_unused_result +# weak +# weakref +# +# Unsupported function attributes will be tested with a prototype +# returning an int and not accepting any arguments and the result of the +# check might be wrong or meaningless so use with care. +# +# LICENSE +# +# Copyright (c) 2013 Gabriele Svelto <gabriele.svelto@gmail.com> +# +# 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 9 + +AC_DEFUN([AX_GCC_FUNC_ATTRIBUTE], [ + AS_VAR_PUSHDEF([ac_var], [ax_cv_have_func_attribute_$1]) + + AC_CACHE_CHECK([for __attribute__(($1))], [ac_var], [ + AC_LINK_IFELSE([AC_LANG_PROGRAM([ + m4_case([$1], + [alias], [ + int foo( void ) { return 0; } + int bar( void ) __attribute__(($1("foo"))); + ], + [aligned], [ + int foo( void ) __attribute__(($1(32))); + ], + [alloc_size], [ + void *foo(int a) __attribute__(($1(1))); + ], + [always_inline], [ + inline __attribute__(($1)) int foo( void ) { return 0; } + ], + [artificial], [ + inline __attribute__(($1)) int foo( void ) { return 0; } + ], + [cold], [ + int foo( void ) __attribute__(($1)); + ], + [const], [ + int foo( void ) __attribute__(($1)); + ], + [constructor_priority], [ + int foo( void ) __attribute__((__constructor__(65535/2))); + ], + [constructor], [ + int foo( void ) __attribute__(($1)); + ], + [deprecated], [ + int foo( void ) __attribute__(($1(""))); + ], + [destructor], [ + int foo( void ) __attribute__(($1)); + ], + [dllexport], [ + __attribute__(($1)) int foo( void ) { return 0; } + ], + [dllimport], [ + int foo( void ) __attribute__(($1)); + ], + [error], [ + int foo( void ) __attribute__(($1(""))); + ], + [externally_visible], [ + int foo( void ) __attribute__(($1)); + ], + [fallthrough], [ + int foo( void ) {switch (0) { case 1: __attribute__(($1)); case 2: break ; }}; + ], + [flatten], [ + int foo( void ) __attribute__(($1)); + ], + [format], [ + int foo(const char *p, ...) __attribute__(($1(printf, 1, 2))); + ], + [format_arg], [ + char *foo(const char *p) __attribute__(($1(1))); + ], + [gnu_inline], [ + inline __attribute__(($1)) int foo( void ) { return 0; } + ], + [hot], [ + int foo( void ) __attribute__(($1)); + ], + [ifunc], [ + int my_foo( void ) { return 0; } + static int (*resolve_foo(void))(void) { return my_foo; } + int foo( void ) __attribute__(($1("resolve_foo"))); + ], + [leaf], [ + __attribute__(($1)) int foo( void ) { return 0; } + ], + [malloc], [ + void *foo( void ) __attribute__(($1)); + ], + [noclone], [ + int foo( void ) __attribute__(($1)); + ], + [noinline], [ + __attribute__(($1)) int foo( void ) { return 0; } + ], + [nonnull], [ + int foo(char *p) __attribute__(($1(1))); + ], + [noreturn], [ + void foo( void ) __attribute__(($1)); + ], + [nothrow], [ + int foo( void ) __attribute__(($1)); + ], + [optimize], [ + __attribute__(($1(3))) int foo( void ) { return 0; } + ], + [pure], [ + int foo( void ) __attribute__(($1)); + ], + [sentinel], [ + int foo(void *p, ...) __attribute__(($1)); + ], + [sentinel_position], [ + int foo(void *p, ...) __attribute__(($1(1))); + ], + [returns_nonnull], [ + void *foo( void ) __attribute__(($1)); + ], + [unused], [ + int foo( void ) __attribute__(($1)); + ], + [used], [ + int foo( void ) __attribute__(($1)); + ], + [visibility], [ + int foo_def( void ) __attribute__(($1("default"))); + int foo_hid( void ) __attribute__(($1("hidden"))); + int foo_int( void ) __attribute__(($1("internal"))); + int foo_pro( void ) __attribute__(($1("protected"))); + ], + [warning], [ + int foo( void ) __attribute__(($1(""))); + ], + [warn_unused_result], [ + int foo( void ) __attribute__(($1)); + ], + [weak], [ + int foo( void ) __attribute__(($1)); + ], + [weakref], [ + static int foo( void ) { return 0; } + static int bar( void ) __attribute__(($1("foo"))); + ], + [ + m4_warn([syntax], [Unsupported attribute $1, the test may fail]) + int foo( void ) __attribute__(($1)); + ] + )], []) + ], + dnl GCC doesn't exit with an error if an unknown attribute is + dnl provided but only outputs a warning, so accept the attribute + dnl only if no warning were issued. + [AS_IF([test -s conftest.err], + [AS_VAR_SET([ac_var], [no])], + [AS_VAR_SET([ac_var], [yes])])], + [AS_VAR_SET([ac_var], [no])]) + ]) + + AS_IF([test yes = AS_VAR_GET([ac_var])], + [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_FUNC_ATTRIBUTE_$1), 1, + [Define to 1 if the system has the `$1' function attribute])], []) + + AS_VAR_POPDEF([ac_var]) +]) diff --git a/m4/boost.m4 b/m4/boost.m4 new file mode 100644 index 0000000..2c1df68 --- /dev/null +++ b/m4/boost.m4 @@ -0,0 +1,1568 @@ +# boost.m4: Locate Boost headers and libraries for autoconf-based projects. +# Copyright (C) 2007-2011, 2014 Benoit Sigoure <tsuna@lrde.epita.fr> +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# Additional permission under section 7 of the GNU General Public +# License, version 3 ("GPLv3"): +# +# If you convey this file as part of a work that contains a +# configuration script generated by Autoconf, you may do so under +# terms of your choice. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +m4_define([_BOOST_SERIAL], [m4_translit([ +# serial 26 +], [# +], [])]) + +# Original sources can be found at http://github.com/tsuna/boost.m4 +# You can fetch the latest version of the script by doing: +# wget http://github.com/tsuna/boost.m4/raw/master/build-aux/boost.m4 + +# ------ # +# README # +# ------ # + +# This file provides several macros to use the various Boost libraries. +# The first macro is BOOST_REQUIRE. It will simply check if it's possible to +# find the Boost headers of a given (optional) minimum version and it will +# define BOOST_CPPFLAGS accordingly. It will add an option --with-boost to +# your configure so that users can specify non standard locations. +# If the user's environment contains BOOST_ROOT and --with-boost was not +# specified, --with-boost=$BOOST_ROOT is implicitly used. +# For more README and documentation, go to http://github.com/tsuna/boost.m4 +# Note: THESE MACROS ASSUME THAT YOU USE LIBTOOL. If you don't, don't worry, +# simply read the README, it will show you what to do step by step. + +m4_pattern_forbid([^_?(BOOST|Boost)_]) + + +# _BOOST_SED_CPP(SED-PROGRAM, PROGRAM, +# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +# -------------------------------------------------------- +# Same as AC_EGREP_CPP, but leave the result in conftest.i. +# +# SED-PROGRAM is *not* overquoted, as in AC_EGREP_CPP. It is expanded +# in double-quotes, so escape your double quotes. +# +# It could be useful to turn this into a macro which extracts the +# value of any macro. +m4_define([_BOOST_SED_CPP], +[AC_LANG_PUSH([C++])dnl +AC_LANG_PREPROC_REQUIRE()dnl +AC_REQUIRE([AC_PROG_SED])dnl +AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])]) +AS_IF([dnl eval is necessary to expand ac_cpp. +dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell. +dnl Beware of Windows end-of-lines, for instance if we are running +dnl some Windows programs under Wine. In that case, boost/version.hpp +dnl is certainly using "\r\n", but the regular Unix shell will only +dnl strip `\n' with backquotes, not the `\r'. This results in +dnl boost_cv_lib_version='1_37\r' for instance, which breaks +dnl everything else. +dnl Cannot use 'dnl' after [$4] because a trailing dnl may break AC_CACHE_CHECK +dnl +dnl Beware that GCC 5, when expanding macros, may embed # line directives +dnl a within single line: +dnl +dnl # 1 "conftest.cc" +dnl # 1 "<built-in>" +dnl # 1 "<command-line>" +dnl # 1 "conftest.cc" +dnl # 1 "/opt/local/include/boost/version.hpp" 1 3 +dnl # 2 "conftest.cc" 2 +dnl boost-lib-version = +dnl # 2 "conftest.cc" 3 +dnl "1_56" +dnl +dnl So get rid of the # and empty lines, and glue the remaining ones together. +(eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD | + grep -v '#' | + grep -v '^[[[:space:]]]*$' | + tr -d '\r' | + tr -s '\n' ' ' | + $SED -n -e "$1" >conftest.i 2>&1], + [$3], + [$4]) +rm -rf conftest* +AC_LANG_POP([C++])dnl +])# _BOOST_SED_CPP + + + +# BOOST_REQUIRE([VERSION], [ACTION-IF-NOT-FOUND]) +# ----------------------------------------------- +# Look for Boost. If version is given, it must either be a literal of the form +# "X.Y.Z" where X, Y and Z are integers (the ".Z" part being optional) or a +# variable "$var". +# Defines the value BOOST_CPPFLAGS. This macro only checks for headers with +# the required version, it does not check for any of the Boost libraries. +# On # success, defines HAVE_BOOST. On failure, calls the optional +# ACTION-IF-NOT-FOUND action if one was supplied. +# Otherwise aborts with an error message. +AC_DEFUN_ONCE([BOOST_REQUIRE], +[AC_REQUIRE([AC_PROG_CXX])dnl +AC_REQUIRE([AC_PROG_GREP])dnl +echo "$as_me: this is boost.m4[]_BOOST_SERIAL" >&AS_MESSAGE_LOG_FD +boost_save_IFS=$IFS +boost_version_req=$1 +IFS=. +set x $boost_version_req 0 0 0 +IFS=$boost_save_IFS +shift +boost_version_req=`expr "$[1]" '*' 100000 + "$[2]" '*' 100 + "$[3]"` +boost_version_req_string=$[1].$[2].$[3] +AC_ARG_WITH([boost], + [AS_HELP_STRING([--with-boost=DIR], + [prefix of Boost $1 @<:@guess@:>@])])dnl +AC_ARG_VAR([BOOST_ROOT],[Location of Boost installation])dnl +# If BOOST_ROOT is set and the user has not provided a value to +# --with-boost, then treat BOOST_ROOT as if it the user supplied it. +if test x"$BOOST_ROOT" != x; then + if test x"$with_boost" = x; then + AC_MSG_NOTICE([Detected BOOST_ROOT; continuing with --with-boost=$BOOST_ROOT]) + with_boost=$BOOST_ROOT + else + AC_MSG_NOTICE([Detected BOOST_ROOT=$BOOST_ROOT, but overridden by --with-boost=$with_boost]) + fi +fi +AC_SUBST([DISTCHECK_CONFIGURE_FLAGS], + ["$DISTCHECK_CONFIGURE_FLAGS '--with-boost=$with_boost'"])dnl +boost_save_CPPFLAGS=$CPPFLAGS + AC_CACHE_CHECK([for Boost headers version >= $boost_version_req_string], + [boost_cv_inc_path], + [boost_cv_inc_path=no +AC_LANG_PUSH([C++])dnl +m4_pattern_allow([^BOOST_VERSION$])dnl + AC_LANG_CONFTEST([AC_LANG_PROGRAM([[#include <boost/version.hpp> +#if !defined BOOST_VERSION +# error BOOST_VERSION is not defined +#elif BOOST_VERSION < $boost_version_req +# error Boost headers version < $boost_version_req +#endif +]])]) + # If the user provided a value to --with-boost, use it and only it. + case $with_boost in #( + ''|yes) set x '' /opt/local/include /usr/local/include /opt/include \ + /usr/include C:/Boost/include;; #( + *) set x "$with_boost/include" "$with_boost";; + esac + shift + for boost_dir + do + # Without --layout=system, Boost (or at least some versions) installs + # itself in <prefix>/include/boost-<version>. This inner loop helps to + # find headers in such directories. + # + # Any ${boost_dir}/boost-x_xx directories are searched in reverse version + # order followed by ${boost_dir}. The final '.' is a sentinel for + # searching $boost_dir" itself. Entries are whitespace separated. + # + # I didn't indent this loop on purpose (to avoid over-indented code) + boost_layout_system_search_list=`cd "$boost_dir" 2>/dev/null \ + && ls -1 | "${GREP}" '^boost-' | sort -rn -t- -k2 \ + && echo .` + for boost_inc in $boost_layout_system_search_list + do + if test x"$boost_inc" != x.; then + boost_inc="$boost_dir/$boost_inc" + else + boost_inc="$boost_dir" # Uses sentinel in boost_layout_system_search_list + fi + if test x"$boost_inc" != x; then + # We are going to check whether the version of Boost installed + # in $boost_inc is usable by running a compilation that + # #includes it. But if we pass a -I/some/path in which Boost + # is not installed, the compiler will just skip this -I and + # use other locations (either from CPPFLAGS, or from its list + # of system include directories). As a result we would use + # header installed on the machine instead of the /some/path + # specified by the user. So in that precise case (trying + # $boost_inc), make sure the version.hpp exists. + # + # Use test -e as there can be symlinks. + test -e "$boost_inc/boost/version.hpp" || continue + CPPFLAGS="$CPPFLAGS -I$boost_inc" + fi + AC_COMPILE_IFELSE([], [boost_cv_inc_path=yes], [boost_cv_version=no]) + if test x"$boost_cv_inc_path" = xyes; then + if test x"$boost_inc" != x; then + boost_cv_inc_path=$boost_inc + fi + break 2 + fi + done + done +AC_LANG_POP([C++])dnl + ]) + case $boost_cv_inc_path in #( + no) + boost_errmsg="cannot find Boost headers version >= $boost_version_req_string" + m4_if([$2], [], [AC_MSG_ERROR([$boost_errmsg])], + [AC_MSG_NOTICE([$boost_errmsg])]) + $2 + ;;#( + yes) + BOOST_CPPFLAGS= + ;;#( + *) + AC_SUBST([BOOST_CPPFLAGS], ["-I$boost_cv_inc_path"])dnl + ;; + esac + if test x"$boost_cv_inc_path" != xno; then + AC_DEFINE([HAVE_BOOST], [1], + [Defined if the requested minimum BOOST version is satisfied]) + AC_CACHE_CHECK([for Boost's header version], + [boost_cv_lib_version], + [m4_pattern_allow([^BOOST_LIB_VERSION$])dnl + _BOOST_SED_CPP([[/^boost-lib-version = /{s///;s/[\" ]//g;p;q;}]], + [#include <boost/version.hpp> +boost-lib-version = BOOST_LIB_VERSION], + [boost_cv_lib_version=`cat conftest.i`])]) + # e.g. "134" for 1_34_1 or "135" for 1_35 + boost_major_version=`echo "$boost_cv_lib_version" | sed 's/_//;s/_.*//'` + case $boost_major_version in #( + '' | *[[!0-9]]*) + AC_MSG_ERROR([invalid value: boost_major_version='$boost_major_version']) + ;; + esac +fi +CPPFLAGS=$boost_save_CPPFLAGS +])# BOOST_REQUIRE + + +# BOOST_STATIC() +# -------------- +# Add the "--enable-static-boost" configure argument. If this argument is given +# on the command line, static versions of the libraries will be looked up. +AC_DEFUN([BOOST_STATIC], + [AC_ARG_ENABLE([static-boost], + [AS_HELP_STRING([--enable-static-boost], + [Prefer the static boost libraries over the shared ones [no]])], + [enable_static_boost=yes], + [enable_static_boost=no])])# BOOST_STATIC + + +# BOOST_FIND_HEADER([HEADER-NAME], [ACTION-IF-NOT-FOUND], [ACTION-IF-FOUND]) +# -------------------------------------------------------------------------- +# Wrapper around AC_CHECK_HEADER for Boost headers. Useful to check for +# some parts of the Boost library which are only made of headers and don't +# require linking (such as Boost.Foreach). +# +# Default ACTION-IF-NOT-FOUND: Fail with a fatal error unless Boost couldn't be +# found in the first place, in which case by default a notice is issued to the +# user. Presumably if we haven't died already it's because it's OK to not have +# Boost, which is why only a notice is issued instead of a hard error. +# +# Default ACTION-IF-FOUND: define the preprocessor symbol HAVE_<HEADER-NAME> in +# case of success # (where HEADER-NAME is written LIKE_THIS, e.g., +# HAVE_BOOST_FOREACH_HPP). +AC_DEFUN([BOOST_FIND_HEADER], +[AC_REQUIRE([BOOST_REQUIRE])dnl +if test x"$boost_cv_inc_path" = xno; then + m4_default([$2], [AC_MSG_NOTICE([Boost not available, not searching for $1])]) +else +AC_LANG_PUSH([C++])dnl +boost_save_CPPFLAGS=$CPPFLAGS +CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS" +AC_CHECK_HEADER([$1], + [m4_default([$3], [AC_DEFINE(AS_TR_CPP([HAVE_$1]), [1], + [Define to 1 if you have <$1>])])], + [m4_default([$2], [AC_MSG_ERROR([cannot find $1])])]) +CPPFLAGS=$boost_save_CPPFLAGS +AC_LANG_POP([C++])dnl +fi +])# BOOST_FIND_HEADER + + +# BOOST_FIND_LIBS([COMPONENT-NAME], [CANDIDATE-LIB-NAMES], +# [PREFERRED-RT-OPT], [HEADER-NAME], [CXX-TEST], +# [CXX-PROLOGUE]) +# -------------------------------------------------------------- +# Look for the Boost library COMPONENT-NAME (e.g., `thread', for +# libboost_thread) under the possible CANDIDATE-LIB-NAMES (e.g., +# "thread_win32 thread"). Check that HEADER-NAME works and check that +# libboost_LIB-NAME can link with the code CXX-TEST. The optional +# argument CXX-PROLOGUE can be used to include some C++ code before +# the `main' function. +# +# Invokes BOOST_FIND_HEADER([HEADER-NAME]) (see above). +# +# Boost libraries typically come compiled with several flavors (with different +# runtime options) so PREFERRED-RT-OPT is the preferred suffix. A suffix is one +# or more of the following letters: sgdpn (in that order). s = static +# runtime, d = debug build, g = debug/diagnostic runtime, p = STLPort build, +# n = (unsure) STLPort build without iostreams from STLPort (it looks like `n' +# must always be used along with `p'). Additionally, PREFERRED-RT-OPT can +# start with `mt-' to indicate that there is a preference for multi-thread +# builds. Some sample values for PREFERRED-RT-OPT: (nothing), mt, d, mt-d, gdp +# ... If you want to make sure you have a specific version of Boost +# (eg, >= 1.33) you *must* invoke BOOST_REQUIRE before this macro. +AC_DEFUN([BOOST_FIND_LIBS], +[AC_REQUIRE([BOOST_REQUIRE])dnl +AC_REQUIRE([_BOOST_FIND_COMPILER_TAG])dnl +AC_REQUIRE([BOOST_STATIC])dnl +AC_REQUIRE([_BOOST_GUESS_WHETHER_TO_USE_MT])dnl +if test x"$boost_cv_inc_path" = xno; then + AC_MSG_NOTICE([Boost not available, not searching for the Boost $1 library]) +else +dnl The else branch is huge and wasn't intended on purpose. +AC_LANG_PUSH([C++])dnl +AS_VAR_PUSHDEF([Boost_lib], [boost_cv_lib_$1])dnl +AS_VAR_PUSHDEF([Boost_lib_LDFLAGS], [boost_cv_lib_$1_LDFLAGS])dnl +AS_VAR_PUSHDEF([Boost_lib_LDPATH], [boost_cv_lib_$1_LDPATH])dnl +AS_VAR_PUSHDEF([Boost_lib_LIBS], [boost_cv_lib_$1_LIBS])dnl +BOOST_FIND_HEADER([$4]) +boost_save_CPPFLAGS=$CPPFLAGS +CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS" +AC_CACHE_CHECK([for the Boost $1 library], [Boost_lib], + [_BOOST_FIND_LIBS($@)]) +case $Boost_lib in #( + (no) _AC_MSG_LOG_CONFTEST + AC_MSG_ERROR([cannot find the flags to link with Boost $1]) + ;; +esac +AC_SUBST(AS_TR_CPP([BOOST_$1_LDFLAGS]), [$Boost_lib_LDFLAGS])dnl +AC_SUBST(AS_TR_CPP([BOOST_$1_LDPATH]), [$Boost_lib_LDPATH])dnl +AC_SUBST([BOOST_LDPATH], [$Boost_lib_LDPATH])dnl +AC_SUBST(AS_TR_CPP([BOOST_$1_LIBS]), [$Boost_lib_LIBS])dnl +CPPFLAGS=$boost_save_CPPFLAGS +AS_VAR_POPDEF([Boost_lib])dnl +AS_VAR_POPDEF([Boost_lib_LDFLAGS])dnl +AS_VAR_POPDEF([Boost_lib_LDPATH])dnl +AS_VAR_POPDEF([Boost_lib_LIBS])dnl +AC_LANG_POP([C++])dnl +fi +]) + + +# BOOST_FIND_LIB([LIB-NAME], +# [PREFERRED-RT-OPT], [HEADER-NAME], [CXX-TEST], +# [CXX-PROLOGUE]) +# -------------------------------------------------------------- +# Backward compatibility wrapper for BOOST_FIND_LIBS. +AC_DEFUN([BOOST_FIND_LIB], +[BOOST_FIND_LIBS([$1], $@)]) + + +# _BOOST_FIND_LIBS([LIB-NAME], [CANDIDATE-LIB-NAMES], +# [PREFERRED-RT-OPT], [HEADER-NAME], [CXX-TEST], +# [CXX-PROLOGUE]) +# -------------------------------------------------------------- +# Real implementation of BOOST_FIND_LIBS: rely on these local macros: +# Boost_lib, Boost_lib_LDFLAGS, Boost_lib_LDPATH, Boost_lib_LIBS +# +# The algorithm is as follows: first look for a given library name +# according to the user's PREFERRED-RT-OPT. For each library name, we +# prefer to use the ones that carry the tag (toolset name). Each +# library is searched through the various standard paths were Boost is +# usually installed. If we can't find the standard variants, we try +# to enforce -mt (for instance on MacOSX, libboost_thread.dylib +# doesn't exist but there's -obviously- libboost_thread-mt.dylib). +AC_DEFUN([_BOOST_FIND_LIBS], +[Boost_lib=no + case "$3" in #( + (mt | mt-) boost_mt=-mt; boost_rtopt=;; #( + (mt* | mt-*) boost_mt=-mt; boost_rtopt=`expr "X$3" : 'Xmt-*\(.*\)'`;; #( + (*) boost_mt=; boost_rtopt=$3;; + esac + if test $enable_static_boost = yes; then + boost_rtopt="s$boost_rtopt" + fi + # Find the proper debug variant depending on what we've been asked to find. + case $boost_rtopt in #( + (*d*) boost_rt_d=$boost_rtopt;; #( + (*[[sgpn]]*) # Insert the `d' at the right place (in between `sg' and `pn') + boost_rt_d=`echo "$boost_rtopt" | sed 's/\(s*g*\)\(p*n*\)/\1\2/'`;; #( + (*) boost_rt_d='-d';; + esac + # If the PREFERRED-RT-OPT are not empty, prepend a `-'. + test -n "$boost_rtopt" && boost_rtopt="-$boost_rtopt" + $boost_guess_use_mt && boost_mt=-mt + # Look for the abs path the static archive. + # $libext is computed by Libtool but let's make sure it's non empty. + test -z "$libext" && + AC_MSG_ERROR([the libext variable is empty, did you invoke Libtool?]) + boost_save_ac_objext=$ac_objext + # Generate the test file. + AC_LANG_CONFTEST([AC_LANG_PROGRAM([#include <$4> +$6], [$5])]) +dnl Optimization hacks: compiling C++ is slow, especially with Boost. What +dnl we're trying to do here is guess the right combination of link flags +dnl (LIBS / LDFLAGS) to use a given library. This can take several +dnl iterations before it succeeds and is thus *very* slow. So what we do +dnl instead is that we compile the code first (and thus get an object file, +dnl typically conftest.o). Then we try various combinations of link flags +dnl until we succeed to link conftest.o in an executable. The problem is +dnl that the various TRY_LINK / COMPILE_IFELSE macros of Autoconf always +dnl remove all the temporary files including conftest.o. So the trick here +dnl is to temporarily change the value of ac_objext so that conftest.o is +dnl preserved accross tests. This is obviously fragile and I will burn in +dnl hell for not respecting Autoconf's documented interfaces, but in the +dnl mean time, it optimizes the macro by a factor of 5 to 30. +dnl Another small optimization: the first argument of AC_COMPILE_IFELSE left +dnl empty because the test file is generated only once above (before we +dnl start the for loops). + AC_COMPILE_IFELSE([], + [ac_objext=do_not_rm_me_plz], + [AC_MSG_ERROR([cannot compile a test that uses Boost $1])]) + ac_objext=$boost_save_ac_objext + boost_failed_libs= +# Don't bother to ident the following nested for loops, only the 2 +# innermost ones matter. +for boost_lib_ in $2; do +for boost_tag_ in -$boost_cv_lib_tag ''; do +for boost_ver_ in -$boost_cv_lib_version ''; do +for boost_mt_ in $boost_mt -mt ''; do +for boost_rtopt_ in $boost_rtopt '' -d; do + for boost_lib in \ + boost_$boost_lib_$boost_tag_$boost_mt_$boost_rtopt_$boost_ver_ \ + boost_$boost_lib_$boost_tag_$boost_rtopt_$boost_ver_ \ + boost_$boost_lib_$boost_tag_$boost_mt_$boost_ver_ \ + boost_$boost_lib_$boost_tag_$boost_ver_ + do + # Avoid testing twice the same lib + case $boost_failed_libs in #( + (*@$boost_lib@*) continue;; + esac + # If with_boost is empty, we'll search in /lib first, which is not quite + # right so instead we'll try to a location based on where the headers are. + boost_tmp_lib=$with_boost + test x"$with_boost" = x && boost_tmp_lib=${boost_cv_inc_path%/include} + for boost_ldpath in "$boost_tmp_lib/lib" '' \ + /opt/local/lib* /usr/local/lib* /opt/lib* /usr/lib* \ + "$with_boost" C:/Boost/lib /lib* + do + # Don't waste time with directories that don't exist. + if test x"$boost_ldpath" != x && test ! -e "$boost_ldpath"; then + continue + fi + boost_save_LDFLAGS=$LDFLAGS + # Are we looking for a static library? + case $boost_ldpath:$boost_rtopt_ in #( + (*?*:*s*) # Yes (Non empty boost_ldpath + s in rt opt) + Boost_lib_LIBS="$boost_ldpath/lib$boost_lib.$libext" + test -e "$Boost_lib_LIBS" || continue;; #( + (*) # No: use -lboost_foo to find the shared library. + Boost_lib_LIBS="-l$boost_lib";; + esac + boost_save_LIBS=$LIBS + LIBS="$Boost_lib_LIBS $LIBS" + test x"$boost_ldpath" != x && LDFLAGS="$LDFLAGS -L$boost_ldpath" +dnl First argument of AC_LINK_IFELSE left empty because the test file is +dnl generated only once above (before we start the for loops). + _BOOST_AC_LINK_IFELSE([], + [Boost_lib=yes], [Boost_lib=no]) + ac_objext=$boost_save_ac_objext + LDFLAGS=$boost_save_LDFLAGS + LIBS=$boost_save_LIBS + if test x"$Boost_lib" = xyes; then + # Check or used cached result of whether or not using -R or + # -rpath makes sense. Some implementations of ld, such as for + # Mac OSX, require -rpath but -R is the flag known to work on + # other systems. https://github.com/tsuna/boost.m4/issues/19 + AC_CACHE_VAL([boost_cv_rpath_link_ldflag], + [case $boost_ldpath in + '') # Nothing to do. + boost_cv_rpath_link_ldflag= + boost_rpath_link_ldflag_found=yes;; + *) + for boost_cv_rpath_link_ldflag in -Wl,-R, -Wl,-rpath,; do + LDFLAGS="$boost_save_LDFLAGS -L$boost_ldpath $boost_cv_rpath_link_ldflag$boost_ldpath" + LIBS="$boost_save_LIBS $Boost_lib_LIBS" + _BOOST_AC_LINK_IFELSE([], + [boost_rpath_link_ldflag_found=yes + break], + [boost_rpath_link_ldflag_found=no]) + done + ;; + esac + AS_IF([test "x$boost_rpath_link_ldflag_found" != "xyes"], + [AC_MSG_ERROR([Unable to determine whether to use -R or -rpath])]) + LDFLAGS=$boost_save_LDFLAGS + LIBS=$boost_save_LIBS + ]) + test x"$boost_ldpath" != x && + Boost_lib_LDFLAGS="-L$boost_ldpath $boost_cv_rpath_link_ldflag$boost_ldpath" + Boost_lib_LDPATH="$boost_ldpath" + break 7 + else + boost_failed_libs="$boost_failed_libs@$boost_lib@" + fi + done + done +done +done +done +done +done # boost_lib_ +rm -f conftest.$ac_objext +]) + + + +# --------------------------------------- # +# Checks for the various Boost libraries. # +# --------------------------------------- # + +# List of boost libraries: http://www.boost.org/libs/libraries.htm +# The page http://beta.boost.org/doc/libs is useful: it gives the first release +# version of each library (among other things). + +# BOOST_DEFUN(LIBRARY, CODE) +# -------------------------- +# Define BOOST_<LIBRARY-UPPERCASE> as a macro that runs CODE. +# +# Use indir to avoid the warning on underquoted macro name given to AC_DEFUN. +m4_define([BOOST_DEFUN], +[m4_indir([AC_DEFUN], + m4_toupper([BOOST_$1]), +[m4_pushdef([BOOST_Library], [$1])dnl +$2 +m4_popdef([BOOST_Library])dnl +]) +]) + +# BOOST_ARRAY() +# ------------- +# Look for Boost.Array +BOOST_DEFUN([Array], +[BOOST_FIND_HEADER([boost/array.hpp])]) + + +# BOOST_ASIO() +# ------------ +# Look for Boost.Asio (new in Boost 1.35). +BOOST_DEFUN([Asio], +[AC_REQUIRE([BOOST_SYSTEM])dnl +BOOST_FIND_HEADER([boost/asio.hpp])]) + + +# BOOST_ASSIGN() +# ------------- +# Look for Boost.Assign +BOOST_DEFUN([Assign], +[BOOST_FIND_HEADER([boost/assign.hpp])]) + + +# BOOST_BIND() +# ------------ +# Look for Boost.Bind. +BOOST_DEFUN([Bind], +[BOOST_FIND_HEADER([boost/bind.hpp])]) + + +# BOOST_CHRONO() +# -------------- +# Look for Boost.Chrono. +BOOST_DEFUN([Chrono], +[# Do we have to check for Boost.System? This link-time dependency was +# added as of 1.35.0. If we have a version <1.35, we must not attempt to +# find Boost.System as it didn't exist by then. +if test $boost_major_version -ge 135; then + BOOST_SYSTEM([$1]) +fi # end of the Boost.System check. +boost_filesystem_save_LIBS=$LIBS +boost_filesystem_save_LDFLAGS=$LDFLAGS +m4_pattern_allow([^BOOST_SYSTEM_(LIBS|LDFLAGS)$])dnl +LIBS="$LIBS $BOOST_SYSTEM_LIBS" +LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS" +BOOST_FIND_LIB([chrono], [$1], + [boost/chrono.hpp], + [boost::chrono::thread_clock d;]) +if test $enable_static_boost = yes && test $boost_major_version -ge 135; then + BOOST_CHRONO_LIBS="$BOOST_CHRONO_LIBS $BOOST_SYSTEM_LIBS" +fi +LIBS=$boost_filesystem_save_LIBS +LDFLAGS=$boost_filesystem_save_LDFLAGS +])# BOOST_CHRONO + + +# BOOST_CONTEXT([PREFERRED-RT-OPT]) +# ----------------------------------- +# Look for Boost.Context. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. +# +# * This library was introduced in Boost 1.51.0 +# * The signatures of make_fcontext() and jump_fcontext were changed in 1.56.0 +# * A dependency on boost_thread appears in 1.57.0 +BOOST_DEFUN([Context], +[boost_context_save_LIBS=$LIBS + boost_context_save_LDFLAGS=$LDFLAGS +if test $boost_major_version -ge 157; then + BOOST_THREAD([$1]) + m4_pattern_allow([^BOOST_THREAD_(LIBS|LDFLAGS)$])dnl + LIBS="$LIBS $BOOST_THREAD_LIBS" + LDFLAGS="$LDFLAGS $BOOST_THREAD_LDFLAGS" +fi +BOOST_FIND_LIB([context], [$1], + [boost/context/all.hpp],[[ + +// creates a stack +void * stack_pointer = new void*[4096]; +std::size_t const size = sizeof(void*[4096]); + +#if BOOST_VERSION <= 105100 +ctx::make_fcontext(&fc, f); +return ctx::jump_fcontext(&fcm, &fc, 3) == 6; + +#else + +fc = ctx::make_fcontext(stack_pointer, size, f); +return ctx::jump_fcontext(&fcm, fc, 3) == 6; + +#endif + + +]],[dnl + +#include <boost/version.hpp> +#if BOOST_VERSION <= 105100 + +namespace ctx = boost::ctx; + +static ctx::fcontext_t fcm, fc; + +static void f(intptr_t i) { + ctx::jump_fcontext(&fc, &fcm, i * 2); +} + +#elif BOOST_VERSION <= 105500 + +namespace ctx = boost::context; + +// context +static ctx::fcontext_t fcm, *fc; + +// context-function +static void f(intptr_t i) { + ctx::jump_fcontext(fc, &fcm, i * 2); +} + +#else + +namespace ctx = boost::context; + +// context +static ctx::fcontext_t fcm, fc; + +// context-function +static void f(intptr_t i) { + ctx::jump_fcontext(&fc, fcm, i * 2); +} +#endif +]) +LIBS=$boost_context_save_LIBS +LDFLAGS=$boost_context_save_LDFLAGS +])# BOOST_CONTEXT + + +# BOOST_CONVERSION() +# ------------------ +# Look for Boost.Conversion (cast / lexical_cast) +BOOST_DEFUN([Conversion], +[BOOST_FIND_HEADER([boost/cast.hpp]) +BOOST_FIND_HEADER([boost/lexical_cast.hpp]) +])# BOOST_CONVERSION + + +# BOOST_COROUTINE([PREFERRED-RT-OPT]) +# ----------------------------------- +# Look for Boost.Coroutine. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. This library was introduced in Boost +# 1.53.0 +BOOST_DEFUN([Coroutine], +[ +boost_coroutine_save_LIBS=$LIBS +boost_coroutine_save_LDFLAGS=$LDFLAGS +# Link-time dependency from coroutine to context +BOOST_CONTEXT([$1]) +# Starting from Boost 1.55 a dependency on Boost.System is added +if test $boost_major_version -ge 155; then + BOOST_SYSTEM([$1]) +fi +m4_pattern_allow([^BOOST_(CONTEXT|SYSTEM)_(LIBS|LDFLAGS)]) +LIBS="$LIBS $BOOST_CONTEXT_LIBS $BOOST_SYSTEM_LIBS" +LDFLAGS="$LDFLAGS $BOOST_CONTEXT_LDFLAGS" + +# in 1.53 coroutine was a header only library +if test $boost_major_version -eq 153; then + BOOST_FIND_HEADER([boost/coroutine/coroutine.hpp]) +else + BOOST_FIND_LIB([coroutine], [$1], + [boost/coroutine/coroutine.hpp], + [ + #include <boost/version.hpp> + #if BOOST_VERSION <= 105500 + boost::coroutines::coroutine<int(int)> coro; coro.get(); + #else + boost::coroutines::asymmetric_coroutine<int>::pull_type coro; coro.get(); + #endif + ]) +fi +# Link-time dependency from coroutine to context, existed only in 1.53, in 1.54 +# coroutine doesn't use context from its headers but from its library. +if test $boost_major_version -eq 153 || test $enable_static_boost = yes && test $boost_major_version -ge 154; then + BOOST_COROUTINE_LIBS="$BOOST_COROUTINE_LIBS $BOOST_CONTEXT_LIBS" + BOOST_COROUTINE_LDFLAGS="$BOOST_COROUTINE_LDFLAGS $BOOST_CONTEXT_LDFLAGS" +fi +if test $enable_static_boost = yes && test $boost_major_version -ge 155; then + BOOST_COROUTINE_LIBS="$BOOST_COROUTINE_LIBS $BOOST_SYSTEM_LIBS" + BOOST_COROUTINE_LDFLAGS="$BOOST_COROUTINE_LDFLAGS $BOOST_SYSTEM_LDFLAGS" +fi +LIBS=$boost_coroutine_save_LIBS +LDFLAGS=$boost_coroutine_save_LDFLAGS +])# BOOST_COROUTINE + + +# BOOST_CRC() +# ----------- +# Look for Boost.CRC +BOOST_DEFUN([CRC], +[BOOST_FIND_HEADER([boost/crc.hpp]) +])# BOOST_CRC + + +# BOOST_DATE_TIME([PREFERRED-RT-OPT]) +# ----------------------------------- +# Look for Boost.Date_Time. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([Date_Time], +[BOOST_FIND_LIB([date_time], [$1], + [boost/date_time/posix_time/posix_time.hpp], + [boost::posix_time::ptime t;]) +])# BOOST_DATE_TIME + + +# BOOST_FILESYSTEM([PREFERRED-RT-OPT]) +# ------------------------------------ +# Look for Boost.Filesystem. For the documentation of PREFERRED-RT-OPT, see +# the documentation of BOOST_FIND_LIB above. +# Do not check for boost/filesystem.hpp because this file was introduced in +# 1.34. +BOOST_DEFUN([Filesystem], +[# Do we have to check for Boost.System? This link-time dependency was +# added as of 1.35.0. If we have a version <1.35, we must not attempt to +# find Boost.System as it didn't exist by then. +if test $boost_major_version -ge 135; then + BOOST_SYSTEM([$1]) +fi # end of the Boost.System check. +boost_filesystem_save_LIBS=$LIBS +boost_filesystem_save_LDFLAGS=$LDFLAGS +m4_pattern_allow([^BOOST_SYSTEM_(LIBS|LDFLAGS)$])dnl +LIBS="$LIBS $BOOST_SYSTEM_LIBS" +LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS" +BOOST_FIND_LIB([filesystem], [$1], + [boost/filesystem/path.hpp], [boost::filesystem::path p;]) +if test $enable_static_boost = yes && test $boost_major_version -ge 135; then + BOOST_FILESYSTEM_LIBS="$BOOST_FILESYSTEM_LIBS $BOOST_SYSTEM_LIBS" +fi +LIBS=$boost_filesystem_save_LIBS +LDFLAGS=$boost_filesystem_save_LDFLAGS +])# BOOST_FILESYSTEM + + +# BOOST_FLYWEIGHT() +# ----------------- +# Look for Boost.Flyweight. +BOOST_DEFUN([Flyweight], +[dnl There's a hidden dependency on pthreads. +AC_REQUIRE([_BOOST_PTHREAD_FLAG])dnl +BOOST_FIND_HEADER([boost/flyweight.hpp]) +AC_SUBST([BOOST_FLYWEIGHT_LIBS], [$boost_cv_pthread_flag]) +]) + + +# BOOST_FOREACH() +# --------------- +# Look for Boost.Foreach. +BOOST_DEFUN([Foreach], +[BOOST_FIND_HEADER([boost/foreach.hpp])]) + + +# BOOST_FORMAT() +# -------------- +# Look for Boost.Format. +# Note: we can't check for boost/format/format_fwd.hpp because the header isn't +# standalone. It can't be compiled because it triggers the following error: +# boost/format/detail/config_macros.hpp:88: error: 'locale' in namespace 'std' +# does not name a type +BOOST_DEFUN([Format], +[BOOST_FIND_HEADER([boost/format.hpp])]) + + +# BOOST_FUNCTION() +# ---------------- +# Look for Boost.Function +BOOST_DEFUN([Function], +[BOOST_FIND_HEADER([boost/function.hpp])]) + + +# BOOST_GEOMETRY() +# ---------------- +# Look for Boost.Geometry (new since 1.47.0). +BOOST_DEFUN([Geometry], +[BOOST_FIND_HEADER([boost/geometry.hpp]) +])# BOOST_GEOMETRY + + +# BOOST_GRAPH([PREFERRED-RT-OPT]) +# ------------------------------- +# Look for Boost.Graphs. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([Graph], +[boost_graph_save_LIBS=$LIBS +boost_graph_save_LDFLAGS=$LDFLAGS +# Link-time dependency from graph to regex was added as of 1.40.0. +if test $boost_major_version -ge 140; then + BOOST_REGEX([$1]) + m4_pattern_allow([^BOOST_REGEX_(LIBS|LDFLAGS)$])dnl + LIBS="$LIBS $BOOST_REGEX_LIBS" + LDFLAGS="$LDFLAGS $BOOST_REGEX_LDFLAGS" +fi +BOOST_FIND_LIB([graph], [$1], + [boost/graph/adjacency_list.hpp], [boost::adjacency_list<> g;]) +LIBS=$boost_graph_save_LIBS +LDFLAGS=$boost_graph_save_LDFLAGS +])# BOOST_GRAPH + + +# BOOST_IOSTREAMS([PREFERRED-RT-OPT]) +# ----------------------------------- +# Look for Boost.IOStreams. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([IOStreams], +[BOOST_FIND_LIB([iostreams], [$1], + [boost/iostreams/device/file_descriptor.hpp], + [boost::iostreams::file_descriptor fd; fd.close();]) +])# BOOST_IOSTREAMS + + +# BOOST_HASH() +# ------------ +# Look for Boost.Functional/Hash +BOOST_DEFUN([Hash], +[BOOST_FIND_HEADER([boost/functional/hash.hpp])]) + + +# BOOST_LAMBDA() +# -------------- +# Look for Boost.Lambda +BOOST_DEFUN([Lambda], +[BOOST_FIND_HEADER([boost/lambda/lambda.hpp])]) + + +# BOOST_LOCALE() +# -------------- +# Look for Boost.Locale +BOOST_DEFUN([Locale], +[ +boost_locale_save_LIBS=$LIBS +boost_locale_save_LDFLAGS=$LDFLAGS +# require SYSTEM for boost-1.50.0 and up +if test $boost_major_version -ge 150; then + BOOST_SYSTEM([$1]) + m4_pattern_allow([^BOOST_SYSTEM_(LIBS|LDFLAGS)$])dnl + LIBS="$LIBS $BOOST_SYSTEM_LIBS" + LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS" +fi # end of the Boost.System check. +BOOST_FIND_LIB([locale], [$1], + [boost/locale.hpp], + [[boost::locale::generator gen; std::locale::global(gen(""));]]) +LIBS=$boost_locale_save_LIBS +LDFLAGS=$boost_locale_save_LDFLAGS +])# BOOST_LOCALE + +# BOOST_LOG([PREFERRED-RT-OPT]) +# ----------------------------- +# Look for Boost.Log. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([Log], +[boost_log_save_LIBS=$LIBS +boost_log_save_LDFLAGS=$LDFLAGS +BOOST_SYSTEM([$1]) +BOOST_FILESYSTEM([$1]) +BOOST_DATE_TIME([$1]) +m4_pattern_allow([^BOOST_(SYSTEM|FILESYSTEM|DATE_TIME)_(LIBS|LDFLAGS)$])dnl +LIBS="$LIBS $BOOST_DATE_TIME_LIBS $BOOST_FILESYSTEM_LIBS $BOOST_SYSTEM_LIBS" +LDFLAGS="$LDFLAGS $BOOST_DATE_TIME_LDFLAGS $BOOST_FILESYSTEM_LDFLAGS $BOOST_SYSTEM_LDFLAGS" +BOOST_FIND_LIB([log], [$1], + [boost/log/core/core.hpp], + [boost::log::attribute a; a.get_value();]) +LIBS=$boost_log_save_LIBS +LDFLAGS=$boost_log_save_LDFLAGS +])# BOOST_LOG + + +# BOOST_LOG_SETUP([PREFERRED-RT-OPT]) +# ----------------------------------- +# Look for Boost.Log. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([Log_Setup], +[boost_log_setup_save_LIBS=$LIBS +boost_log_setup_save_LDFLAGS=$LDFLAGS +BOOST_LOG([$1]) +m4_pattern_allow([^BOOST_LOG_(LIBS|LDFLAGS)$])dnl +LIBS="$LIBS $BOOST_LOG_LIBS" +LDFLAGS="$LDFLAGS $BOOST_LOG_LDFLAGS" +BOOST_FIND_LIB([log_setup], [$1], + [boost/log/utility/setup/from_settings.hpp], + [boost::log::basic_settings<char> bs; bs.empty();]) +LIBS=$boost_log_setup_save_LIBS +LDFLAGS=$boost_log_setup_save_LDFLAGS +])# BOOST_LOG_SETUP + + +# BOOST_MATH() +# ------------ +# Look for Boost.Math +# TODO: This library isn't header-only but it comes in multiple different +# flavors that don't play well with BOOST_FIND_LIB (e.g, libboost_math_c99, +# libboost_math_c99f, libboost_math_c99l, libboost_math_tr1, +# libboost_math_tr1f, libboost_math_tr1l). This macro must be fixed to do the +# right thing anyway. +BOOST_DEFUN([Math], +[BOOST_FIND_HEADER([boost/math/special_functions.hpp])]) + + +# BOOST_MPI([PREFERRED-RT-OPT]) +# ------------------------------- +# Look for Boost MPI. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. Uses MPICXX variable if it is +# set, otherwise tries CXX +# +BOOST_DEFUN([MPI], +[boost_save_CXX=${CXX} +boost_save_CXXCPP=${CXXCPP} +if test x"${MPICXX}" != x; then + CXX=${MPICXX} + CXXCPP="${MPICXX} -E" +fi +BOOST_FIND_LIB([mpi], [$1], + [boost/mpi.hpp], + [int argc = 0; + char **argv = 0; + boost::mpi::environment env(argc,argv);]) +CXX=${boost_save_CXX} +CXXCPP=${boost_save_CXXCPP} +])# BOOST_MPI + + +# BOOST_MULTIARRAY() +# ------------------ +# Look for Boost.MultiArray +BOOST_DEFUN([MultiArray], +[BOOST_FIND_HEADER([boost/multi_array.hpp])]) + + +# BOOST_NUMERIC_UBLAS() +# -------------------------- +# Look for Boost.NumericUblas (Basic Linear Algebra) +BOOST_DEFUN([Numeric_Ublas], +[BOOST_FIND_HEADER([boost/numeric/ublas/vector.hpp]) +])# BOOST_NUMERIC_UBLAS + + +# BOOST_NUMERIC_CONVERSION() +# -------------------------- +# Look for Boost.NumericConversion (policy-based numeric conversion) +BOOST_DEFUN([Numeric_Conversion], +[BOOST_FIND_HEADER([boost/numeric/conversion/converter.hpp]) +])# BOOST_NUMERIC_CONVERSION + + +# BOOST_OPTIONAL() +# ---------------- +# Look for Boost.Optional +BOOST_DEFUN([Optional], +[BOOST_FIND_HEADER([boost/optional.hpp])]) + + +# BOOST_PREPROCESSOR() +# -------------------- +# Look for Boost.Preprocessor +BOOST_DEFUN([Preprocessor], +[BOOST_FIND_HEADER([boost/preprocessor/repeat.hpp])]) + + +# BOOST_RANGE() +# -------------------- +# Look for Boost.Range +BOOST_DEFUN([Range], +[BOOST_FIND_HEADER([boost/range/adaptors.hpp])]) + +# BOOST_UNORDERED() +# ----------------- +# Look for Boost.Unordered +BOOST_DEFUN([Unordered], +[BOOST_FIND_HEADER([boost/unordered_map.hpp])]) + + +# BOOST_UUID() +# ------------ +# Look for Boost.Uuid +BOOST_DEFUN([Uuid], +[BOOST_FIND_HEADER([boost/uuid/uuid.hpp])]) + + +# BOOST_PROGRAM_OPTIONS([PREFERRED-RT-OPT]) +# ----------------------------------------- +# Look for Boost.Program_options. For the documentation of PREFERRED-RT-OPT, +# see the documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([Program_Options], +[BOOST_FIND_LIB([program_options], [$1], + [boost/program_options.hpp], + [boost::program_options::options_description d("test");]) +])# BOOST_PROGRAM_OPTIONS + + + +# _BOOST_PYTHON_CONFIG(VARIABLE, FLAG) +# ------------------------------------ +# Save VARIABLE, and define it via `python-config --FLAG`. +# Substitute BOOST_PYTHON_VARIABLE. +m4_define([_BOOST_PYTHON_CONFIG], +[AC_SUBST([BOOST_PYTHON_$1], + [`python-config --$2 2>/dev/null`])dnl +boost_python_save_$1=$$1 +$1="$$1 $BOOST_PYTHON_$1"]) + + +# BOOST_PYTHON([PREFERRED-RT-OPT]) +# -------------------------------- +# Look for Boost.Python. For the documentation of PREFERRED-RT-OPT, +# see the documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([Python], +[_BOOST_PYTHON_CONFIG([CPPFLAGS], [includes]) +_BOOST_PYTHON_CONFIG([LDFLAGS], [ldflags]) +_BOOST_PYTHON_CONFIG([LIBS], [libs]) +m4_pattern_allow([^BOOST_PYTHON_MODULE$])dnl +BOOST_FIND_LIBS([python], [python python3], [$1], + [boost/python.hpp], + [], [BOOST_PYTHON_MODULE(empty) {}]) +CPPFLAGS=$boost_python_save_CPPFLAGS +LDFLAGS=$boost_python_save_LDFLAGS +LIBS=$boost_python_save_LIBS +])# BOOST_PYTHON + + +# BOOST_REF() +# ----------- +# Look for Boost.Ref +BOOST_DEFUN([Ref], +[BOOST_FIND_HEADER([boost/ref.hpp])]) + + +# BOOST_REGEX([PREFERRED-RT-OPT]) +# ------------------------------- +# Look for Boost.Regex. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([Regex], +[BOOST_FIND_LIB([regex], [$1], + [boost/regex.hpp], + [boost::regex exp("*"); boost::regex_match("foo", exp);]) +])# BOOST_REGEX + + +# BOOST_SERIALIZATION([PREFERRED-RT-OPT]) +# --------------------------------------- +# Look for Boost.Serialization. For the documentation of PREFERRED-RT-OPT, see +# the documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([Serialization], +[BOOST_FIND_LIB([serialization], [$1], + [boost/archive/text_oarchive.hpp], + [std::ostream* o = 0; // Cheap way to get an ostream... + boost::archive::text_oarchive t(*o);]) +])# BOOST_SERIALIZATION + + +# BOOST_SIGNALS([PREFERRED-RT-OPT]) +# --------------------------------- +# Look for Boost.Signals. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([Signals], +[BOOST_FIND_LIB([signals], [$1], + [boost/signal.hpp], + [boost::signal<void ()> s;]) +])# BOOST_SIGNALS + + +# BOOST_SIGNALS2() +# ---------------- +# Look for Boost.Signals2 (new since 1.39.0). +BOOST_DEFUN([Signals2], +[BOOST_FIND_HEADER([boost/signals2.hpp]) +])# BOOST_SIGNALS2 + + +# BOOST_SMART_PTR() +# ----------------- +# Look for Boost.SmartPtr +BOOST_DEFUN([Smart_Ptr], +[BOOST_FIND_HEADER([boost/scoped_ptr.hpp]) +BOOST_FIND_HEADER([boost/shared_ptr.hpp]) +]) + + +# BOOST_STATICASSERT() +# -------------------- +# Look for Boost.StaticAssert +BOOST_DEFUN([StaticAssert], +[BOOST_FIND_HEADER([boost/static_assert.hpp])]) + + +# BOOST_STRING_ALGO() +# ------------------- +# Look for Boost.StringAlgo +BOOST_DEFUN([String_Algo], +[BOOST_FIND_HEADER([boost/algorithm/string.hpp]) +]) + + +# BOOST_SYSTEM([PREFERRED-RT-OPT]) +# -------------------------------- +# Look for Boost.System. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. This library was introduced in Boost +# 1.35.0. +BOOST_DEFUN([System], +[BOOST_FIND_LIB([system], [$1], + [boost/system/error_code.hpp], + [boost::system::error_code e; e.clear();]) +])# BOOST_SYSTEM + + +# BOOST_TEST([PREFERRED-RT-OPT]) +# ------------------------------ +# Look for Boost.Test. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([Test], +[m4_pattern_allow([^BOOST_CHECK$])dnl +BOOST_FIND_LIB([unit_test_framework], [$1], + [boost/test/unit_test.hpp], [BOOST_CHECK(2 == 2);], + [using boost::unit_test::test_suite; + test_suite* init_unit_test_suite(int argc, char ** argv) + { return NULL; }]) +])# BOOST_TEST + + +# BOOST_THREAD([PREFERRED-RT-OPT]) +# --------------------------------- +# Look for Boost.Thread. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([Thread], +[dnl Having the pthread flag is required at least on GCC3 where +dnl boost/thread.hpp would complain if we try to compile without +dnl -pthread on GNU/Linux. +AC_REQUIRE([_BOOST_PTHREAD_FLAG])dnl +boost_thread_save_LIBS=$LIBS +boost_thread_save_LDFLAGS=$LDFLAGS +boost_thread_save_CPPFLAGS=$CPPFLAGS +# Link-time dependency from thread to system was added as of 1.49.0. +if test $boost_major_version -ge 149; then +BOOST_SYSTEM([$1]) +fi # end of the Boost.System check. +m4_pattern_allow([^BOOST_SYSTEM_(LIBS|LDFLAGS)$])dnl +LIBS="$LIBS $BOOST_SYSTEM_LIBS $boost_cv_pthread_flag" +LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS" +CPPFLAGS="$CPPFLAGS $boost_cv_pthread_flag" + +# When compiling for the Windows platform, the threads library is named +# differently. This suffix doesn't exist in new versions of Boost, or +# possibly new versions of GCC on mingw I am assuming it's Boost's change for +# now and I am setting version to 1.48, for lack of knowledge as to when this +# change occurred. +if test $boost_major_version -lt 148; then + case $host_os in + (*mingw*) boost_thread_lib_ext=_win32;; + esac +fi +BOOST_FIND_LIBS([thread], [thread$boost_thread_lib_ext], + [$1], + [boost/thread.hpp], [boost::thread t; boost::mutex m;]) + +case $host_os in + (*mingw*) boost_thread_w32_socket_link=-lws2_32;; +esac + +BOOST_THREAD_LIBS="$BOOST_THREAD_LIBS $BOOST_SYSTEM_LIBS $boost_cv_pthread_flag $boost_thread_w32_socket_link" +BOOST_THREAD_LDFLAGS="$BOOST_SYSTEM_LDFLAGS" +BOOST_CPPFLAGS="$BOOST_CPPFLAGS $boost_cv_pthread_flag" +LIBS=$boost_thread_save_LIBS +LDFLAGS=$boost_thread_save_LDFLAGS +CPPFLAGS=$boost_thread_save_CPPFLAGS +])# BOOST_THREAD + +AU_ALIAS([BOOST_THREADS], [BOOST_THREAD]) + + +# BOOST_TOKENIZER() +# ----------------- +# Look for Boost.Tokenizer +BOOST_DEFUN([Tokenizer], +[BOOST_FIND_HEADER([boost/tokenizer.hpp])]) + + +# BOOST_TRIBOOL() +# --------------- +# Look for Boost.Tribool +BOOST_DEFUN([Tribool], +[BOOST_FIND_HEADER([boost/logic/tribool_fwd.hpp]) +BOOST_FIND_HEADER([boost/logic/tribool.hpp]) +]) + + +# BOOST_TUPLE() +# ------------- +# Look for Boost.Tuple +BOOST_DEFUN([Tuple], +[BOOST_FIND_HEADER([boost/tuple/tuple.hpp])]) + + +# BOOST_TYPETRAITS() +# -------------------- +# Look for Boost.TypeTraits +BOOST_DEFUN([TypeTraits], +[BOOST_FIND_HEADER([boost/type_traits.hpp])]) + + +# BOOST_UTILITY() +# --------------- +# Look for Boost.Utility (noncopyable, result_of, base-from-member idiom, +# etc.) +BOOST_DEFUN([Utility], +[BOOST_FIND_HEADER([boost/utility.hpp])]) + + +# BOOST_VARIANT() +# --------------- +# Look for Boost.Variant. +BOOST_DEFUN([Variant], +[BOOST_FIND_HEADER([boost/variant/variant_fwd.hpp]) +BOOST_FIND_HEADER([boost/variant.hpp])]) + + +# BOOST_POINTER_CONTAINER() +# ------------------------ +# Look for Boost.PointerContainer +BOOST_DEFUN([Pointer_Container], +[BOOST_FIND_HEADER([boost/ptr_container/ptr_deque.hpp]) +BOOST_FIND_HEADER([boost/ptr_container/ptr_list.hpp]) +BOOST_FIND_HEADER([boost/ptr_container/ptr_vector.hpp]) +BOOST_FIND_HEADER([boost/ptr_container/ptr_array.hpp]) +BOOST_FIND_HEADER([boost/ptr_container/ptr_set.hpp]) +BOOST_FIND_HEADER([boost/ptr_container/ptr_map.hpp]) +])# BOOST_POINTER_CONTAINER + + +# BOOST_WAVE([PREFERRED-RT-OPT]) +# ------------------------------ +# NOTE: If you intend to use Wave/Spirit with thread support, make sure you +# call BOOST_THREAD first. +# Look for Boost.Wave. For the documentation of PREFERRED-RT-OPT, see the +# documentation of BOOST_FIND_LIB above. +BOOST_DEFUN([Wave], +[AC_REQUIRE([BOOST_FILESYSTEM])dnl +AC_REQUIRE([BOOST_DATE_TIME])dnl +boost_wave_save_LIBS=$LIBS +boost_wave_save_LDFLAGS=$LDFLAGS +m4_pattern_allow([^BOOST_((FILE)?SYSTEM|DATE_TIME|THREAD)_(LIBS|LDFLAGS)$])dnl +LIBS="$LIBS $BOOST_SYSTEM_LIBS $BOOST_FILESYSTEM_LIBS $BOOST_DATE_TIME_LIBS \ +$BOOST_THREAD_LIBS" +LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS $BOOST_FILESYSTEM_LDFLAGS \ +$BOOST_DATE_TIME_LDFLAGS $BOOST_THREAD_LDFLAGS" +BOOST_FIND_LIB([wave], [$1], + [boost/wave.hpp], + [boost::wave::token_id id; get_token_name(id);]) +LIBS=$boost_wave_save_LIBS +LDFLAGS=$boost_wave_save_LDFLAGS +])# BOOST_WAVE + + +# BOOST_XPRESSIVE() +# ----------------- +# Look for Boost.Xpressive (new since 1.36.0). +BOOST_DEFUN([Xpressive], +[BOOST_FIND_HEADER([boost/xpressive/xpressive.hpp])]) + + +# ----------------- # +# Internal helpers. # +# ----------------- # + + +# _BOOST_PTHREAD_FLAG() +# --------------------- +# Internal helper for BOOST_THREAD. Computes boost_cv_pthread_flag +# which must be used in CPPFLAGS and LIBS. +# +# Yes, we *need* to put the -pthread thing in CPPFLAGS because with GCC3, +# boost/thread.hpp will trigger a #error if -pthread isn't used: +# boost/config/requires_threads.hpp:47:5: #error "Compiler threading support +# is not turned on. Please set the correct command line options for +# threading: -pthread (Linux), -pthreads (Solaris) or -mthreads (Mingw32)" +# +# Based on ACX_PTHREAD: http://autoconf-archive.cryp.to/acx_pthread.html +AC_DEFUN([_BOOST_PTHREAD_FLAG], +[AC_REQUIRE([AC_PROG_CXX])dnl +AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_LANG_PUSH([C++])dnl +AC_CACHE_CHECK([for the flags needed to use pthreads], [boost_cv_pthread_flag], +[ boost_cv_pthread_flag= + # The ordering *is* (sometimes) important. Some notes on the + # individual items follow: + # (none): in case threads are in libc; should be tried before -Kthread and + # other compiler flags to prevent continual compiler warnings + # -lpthreads: AIX (must check this before -lpthread) + # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) + # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) + # -llthread: LinuxThreads port on FreeBSD (also preferred to -pthread) + # -pthread: GNU Linux/GCC (kernel threads), BSD/GCC (userland threads) + # -pthreads: Solaris/GCC + # -mthreads: MinGW32/GCC, Lynx/GCC + # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it + # doesn't hurt to check since this sometimes defines pthreads too; + # also defines -D_REENTRANT) + # ... -mt is also the pthreads flag for HP/aCC + # -lpthread: GNU Linux, etc. + # --thread-safe: KAI C++ + case $host_os in #( + *solaris*) + # On Solaris (at least, for some versions), libc contains stubbed + # (non-functional) versions of the pthreads routines, so link-based + # tests will erroneously succeed. (We need to link with -pthreads/-mt/ + # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather + # a function called by this macro, so we could check for that, but + # who knows whether they'll stub that too in a future libc.) So, + # we'll just look for -pthreads and -lpthread first: + boost_pthread_flags="-pthreads -lpthread -mt -pthread";; #( + *) + boost_pthread_flags="-lpthreads -Kthread -kthread -llthread -pthread \ + -pthreads -mthreads -lpthread --thread-safe -mt";; + esac + # Generate the test file. + AC_LANG_CONFTEST([AC_LANG_PROGRAM([#include <pthread.h>], + [pthread_t th; pthread_join(th, 0); + pthread_attr_init(0); pthread_cleanup_push(0, 0); + pthread_create(0,0,0,0); pthread_cleanup_pop(0);])]) + for boost_pthread_flag in '' $boost_pthread_flags; do + boost_pthread_ok=false +dnl Re-use the test file already generated. + boost_pthreads__save_LIBS=$LIBS + LIBS="$LIBS $boost_pthread_flag" + AC_LINK_IFELSE([], + [if grep ".*$boost_pthread_flag" conftest.err; then + echo "This flag seems to have triggered warnings" >&AS_MESSAGE_LOG_FD + else + boost_pthread_ok=:; boost_cv_pthread_flag=$boost_pthread_flag + fi]) + LIBS=$boost_pthreads__save_LIBS + $boost_pthread_ok && break + done +]) +AC_LANG_POP([C++])dnl +])# _BOOST_PTHREAD_FLAG + + +# _BOOST_gcc_test(MAJOR, MINOR) +# ----------------------------- +# Internal helper for _BOOST_FIND_COMPILER_TAG. +m4_define([_BOOST_gcc_test], +["defined __GNUC__ && __GNUC__ == $1 && __GNUC_MINOR__ == $2 && !defined __ICC @ gcc$1$2"])dnl + +# _BOOST_mingw_test(MAJOR, MINOR) +# ----------------------------- +# Internal helper for _BOOST_FIND_COMPILER_TAG. +m4_define([_BOOST_mingw_test], +["defined __GNUC__ && __GNUC__ == $1 && __GNUC_MINOR__ == $2 && !defined __ICC && \ + (defined WIN32 || defined WINNT || defined _WIN32 || defined __WIN32 \ + || defined __WIN32__ || defined __WINNT || defined __WINNT__) @ mgw$1$2"])dnl + + +# _BOOST_FIND_COMPILER_TAG() +# -------------------------- +# Internal. When Boost is installed without --layout=system, each library +# filename will hold a suffix that encodes the compiler used during the +# build. The Boost build system seems to call this a `tag'. +AC_DEFUN([_BOOST_FIND_COMPILER_TAG], +[AC_REQUIRE([AC_PROG_CXX])dnl +AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_CACHE_CHECK([for the toolset name used by Boost for $CXX], + [boost_cv_lib_tag], +[boost_cv_lib_tag=unknown +if test x$boost_cv_inc_path != xno; then + AC_LANG_PUSH([C++])dnl + # The following tests are mostly inspired by boost/config/auto_link.hpp + # The list is sorted to most recent/common to oldest compiler (in order + # to increase the likelihood of finding the right compiler with the + # least number of compilation attempt). + # Beware that some tests are sensible to the order (for instance, we must + # look for MinGW before looking for GCC3). + # I used one compilation test per compiler with a #error to recognize + # each compiler so that it works even when cross-compiling (let me know + # if you know a better approach). + # Known missing tags (known from Boost's tools/build/v2/tools/common.jam): + # como, edg, kcc, bck, mp, sw, tru, xlc + # I'm not sure about my test for `il' (be careful: Intel's ICC pre-defines + # the same defines as GCC's). + for i in \ + _BOOST_mingw_test(5, 3) \ + _BOOST_gcc_test(5, 3) \ + _BOOST_mingw_test(5, 2) \ + _BOOST_gcc_test(5, 2) \ + _BOOST_mingw_test(5, 1) \ + _BOOST_gcc_test(5, 1) \ + _BOOST_mingw_test(5, 0) \ + _BOOST_gcc_test(5, 0) \ + _BOOST_mingw_test(4, 10) \ + _BOOST_gcc_test(4, 10) \ + _BOOST_mingw_test(4, 9) \ + _BOOST_gcc_test(4, 9) \ + _BOOST_mingw_test(4, 8) \ + _BOOST_gcc_test(4, 8) \ + _BOOST_mingw_test(4, 7) \ + _BOOST_gcc_test(4, 7) \ + _BOOST_mingw_test(4, 6) \ + _BOOST_gcc_test(4, 6) \ + _BOOST_mingw_test(4, 5) \ + _BOOST_gcc_test(4, 5) \ + _BOOST_mingw_test(4, 4) \ + _BOOST_gcc_test(4, 4) \ + _BOOST_mingw_test(4, 3) \ + _BOOST_gcc_test(4, 3) \ + _BOOST_mingw_test(4, 2) \ + _BOOST_gcc_test(4, 2) \ + _BOOST_mingw_test(4, 1) \ + _BOOST_gcc_test(4, 1) \ + _BOOST_mingw_test(4, 0) \ + _BOOST_gcc_test(4, 0) \ + "defined __GNUC__ && __GNUC__ == 3 && !defined __ICC \ + && (defined WIN32 || defined WINNT || defined _WIN32 || defined __WIN32 \ + || defined __WIN32__ || defined __WINNT || defined __WINNT__) @ mgw" \ + _BOOST_gcc_test(3, 4) \ + _BOOST_gcc_test(3, 3) \ + "defined _MSC_VER && _MSC_VER >= 1500 @ vc90" \ + "defined _MSC_VER && _MSC_VER == 1400 @ vc80" \ + _BOOST_gcc_test(3, 2) \ + "defined _MSC_VER && _MSC_VER == 1310 @ vc71" \ + _BOOST_gcc_test(3, 1) \ + _BOOST_gcc_test(3, 0) \ + "defined __BORLANDC__ @ bcb" \ + "defined __ICC && (defined __unix || defined __unix__) @ il" \ + "defined __ICL @ iw" \ + "defined _MSC_VER && _MSC_VER == 1300 @ vc7" \ + _BOOST_gcc_test(2, 95) \ + "defined __MWERKS__ && __MWERKS__ <= 0x32FF @ cw9" \ + "defined _MSC_VER && _MSC_VER < 1300 && !defined UNDER_CE @ vc6" \ + "defined _MSC_VER && _MSC_VER < 1300 && defined UNDER_CE @ evc4" \ + "defined __MWERKS__ && __MWERKS__ <= 0x31FF @ cw8" + do + boost_tag_test=`expr "X$i" : 'X\([[^@]]*\) @ '` + boost_tag=`expr "X$i" : 'X[[^@]]* @ \(.*\)'` + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#if $boost_tag_test +/* OK */ +#else +# error $boost_tag_test +#endif +]])], [boost_cv_lib_tag=$boost_tag; break], []) + done +AC_LANG_POP([C++])dnl + case $boost_cv_lib_tag in #( + # Some newer (>= 1.35?) versions of Boost seem to only use "gcc" as opposed + # to "gcc41" for instance. + *-gcc | *'-gcc ') :;; #( Don't re-add -gcc: it's already in there. + gcc*) + boost_tag_x= + case $host_os in #( + darwin*) + if test $boost_major_version -ge 136; then + # The `x' added in r46793 of Boost. + boost_tag_x=x + fi;; + esac + # We can specify multiple tags in this variable because it's used by + # BOOST_FIND_LIB that does a `for tag in -$boost_cv_lib_tag' ... + boost_cv_lib_tag="$boost_tag_x$boost_cv_lib_tag -${boost_tag_x}gcc" + ;; #( + unknown) + AC_MSG_WARN([[could not figure out which toolset name to use for $CXX]]) + boost_cv_lib_tag= + ;; + esac +fi])dnl end of AC_CACHE_CHECK +])# _BOOST_FIND_COMPILER_TAG + + +# _BOOST_GUESS_WHETHER_TO_USE_MT() +# -------------------------------- +# Compile a small test to try to guess whether we should favor MT (Multi +# Thread) flavors of Boost. Sets boost_guess_use_mt accordingly. +AC_DEFUN([_BOOST_GUESS_WHETHER_TO_USE_MT], +[# Check whether we do better use `mt' even though we weren't ask to. +AC_LANG_PUSH([C++])dnl +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#if defined _REENTRANT || defined _MT || defined __MT__ +/* use -mt */ +#else +# error MT not needed +#endif +]])], [boost_guess_use_mt=:], [boost_guess_use_mt=false]) +AC_LANG_POP([C++])dnl +]) + +# _BOOST_AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) +# ------------------------------------------------------------------- +# Fork of _AC_LINK_IFELSE that preserves conftest.o across calls. Fragile, +# will break when Autoconf changes its internals. Requires that you manually +# rm -f conftest.$ac_objext in between to really different tests, otherwise +# you will try to link a conftest.o left behind by a previous test. +# Used to aggressively optimize BOOST_FIND_LIB (see the big comment in this +# macro). +# +# Don't use "break" in the actions, as it would short-circuit some code +# this macro runs after the actions. +m4_define([_BOOST_AC_LINK_IFELSE], +[m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl +rm -f conftest$ac_exeext +boost_save_ac_ext=$ac_ext +boost_use_source=: +# If we already have a .o, re-use it. We change $ac_ext so that $ac_link +# tries to link the existing object file instead of compiling from source. +test -f conftest.$ac_objext && ac_ext=$ac_objext && boost_use_source=false && + _AS_ECHO_LOG([re-using the existing conftest.$ac_objext]) +AS_IF([_AC_DO_STDERR($ac_link) && { + test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" || + test ! -s conftest.err + } && test -s conftest$ac_exeext && { + test "$cross_compiling" = yes || + $as_executable_p conftest$ac_exeext +dnl FIXME: use AS_TEST_X instead when 2.61 is widespread enough. + }], + [$2], + [if $boost_use_source; then + _AC_MSG_LOG_CONFTEST + fi + $3]) +ac_objext=$boost_save_ac_objext +ac_ext=$boost_save_ac_ext +dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization) +dnl information created by the PGI compiler (conftest_ipa8_conftest.oo), +dnl as it would interfere with the next link command. +rm -f core conftest.err conftest_ipa8_conftest.oo \ + conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl +])# _BOOST_AC_LINK_IFELSE + +# Local Variables: +# mode: autoconf +# End: |