********************************************************************************
conan test conan-center-index/recipes/lely-core/all/test_package/conanfile.py lely-core/2.3.1@#1bd0487f5edac978e0c74153cfeece33 -pr /home/conan/w/prod/BuildSingleReference/150594/fd75e8a9-9882-4678-baa0-14f5fea09127/profile_linux_5_libstdcpp_gcc_release_64.lely-core-shared-False.txt -c tools.system.package_manager:mode=install -c tools.system.package_manager:sudo=True
********************************************************************************
Configuration:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.libcxx=libstdc++
compiler.version=5
os=Linux
[options]
lely-core:shared=False
[build_requires]
[env]
[conf]
tools.system.package_manager:mode=install
tools.system.package_manager:sudo=True

lely-core/2.3.1 (test package): Installing package
Requirements
    lely-core/2.3.1 from local cache - Cache
Packages
    lely-core/2.3.1:64c36e8a01f41ae112fe82c8cf99d356cd8040b6 - Cache

Installing (downloading, building) binaries...
lely-core/2.3.1: Already installed!
lely-core/2.3.1 (test package): Generator 'CMakeDeps' calling 'generate()'
lely-core/2.3.1 (test package): Generator 'CMakeToolchain' calling 'generate()'
lely-core/2.3.1 (test package): Preset 'release' added to CMakePresets.json. Invoke it manually using 'cmake --preset release'
lely-core/2.3.1 (test package): If your CMake version is not compatible with CMakePresets (<3.19) call cmake like: 'cmake <path> -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE=/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/build/generators/conan_toolchain.cmake -DCMAKE_POLICY_DEFAULT_CMP0091=NEW -DCMAKE_BUILD_TYPE=Release'
lely-core/2.3.1 (test package): Generator txt created conanbuildinfo.txt
lely-core/2.3.1 (test package): Aggregating env generators
lely-core/2.3.1 (test package): Generated conaninfo.txt
lely-core/2.3.1 (test package): Generated graphinfo
Using lockfile: '/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/build/generators/conan.lock'
Using cached profile from lockfile
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
lely-core/2.3.1 (test package): Calling build()
lely-core/2.3.1 (test package): CMake command: cmake -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/build/generators/conan_toolchain.cmake" -DCMAKE_POLICY_DEFAULT_CMP0091="NEW" -DCMAKE_BUILD_TYPE="Release" "/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/."

----Running------
> cmake -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/build/generators/conan_toolchain.cmake" -DCMAKE_POLICY_DEFAULT_CMP0091="NEW" -DCMAKE_BUILD_TYPE="Release" "/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/."
-----------------
-- Using Conan toolchain: /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/build/generators/conan_toolchain.cmake
-- The C compiler identification is GNU 5.4.0
-- The CXX compiler identification is GNU 5.4.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Conan: Component target declared 'lely-core::libc'
-- Conan: Component target declared 'lely-core::tap'
-- Conan: Component target declared 'lely-core::util'
-- Conan: Component target declared 'lely-core::can'
-- Conan: Component target declared 'lely-core::co'
-- Conan: Component target declared 'lely-core::ev'
-- Conan: Component target declared 'lely-core::io2'
-- Conan: Component target declared 'lely-core::coapp'
-- Conan: Target declared 'lely-core::lely-core'
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
-- Configuring done
-- Generating done
-- Build files have been written to: /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/build/Release
lely-core/2.3.1 (test package): CMake command: cmake --build "/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/build/Release" '--' '-j3'

----Running------
> cmake --build "/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/build/Release" '--' '-j3'
-----------------
Scanning dependencies of target test_package
[ 50%] Building CXX object CMakeFiles/test_package.dir/test_package.cpp.o
CMakeFiles/test_package.dir/build.make:81: recipe for target 'CMakeFiles/test_package.dir/test_package.cpp.o' failed
CMakeFiles/Makefile2:94: recipe for target 'CMakeFiles/test_package.dir/all' failed
Makefile:102: recipe for target 'all' failed
In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/ev.h:24:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.h:25,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/features.h:30:2: error: #error This file requires compiler and library support for the ISO C++11 standard.
 #error This file requires compiler and library support for the ISO C++11 standard.
  ^
In file included from /usr/include/c++/5/type_traits:35:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/functional.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:25,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/task.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/usr/include/c++/5/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
 #error This file requires compiler and library support \
  ^
In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/functional.hpp:27:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:25,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/task.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:37:9: error: expected nested-name-specifier before ‘type’
   using type = typename ::std::remove_cv<
         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:42:1: error: expected unqualified-id before ‘using’
 using remove_cvref_t = typename remove_cvref<T>::type;
 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:65:1: error: expected unqualified-id before ‘using’
 using bool_constant = ::std::integral_constant<bool, B>;
 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:70:49: error: expected class-name before ‘{’ token
 struct is_reference_wrapper : ::std::false_type {};
                                                 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
 struct is_reference_wrapper<::std::reference_wrapper<U>> : ::std::true_type {};
                              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:8: error: template argument required for ‘struct is_reference_wrapper’
 struct is_reference_wrapper<::std::reference_wrapper<U>> : ::std::true_type {};
        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:28: error: expected unqualified-id before ‘<:’ token
 struct is_reference_wrapper<::std::reference_wrapper<U>> : ::std::true_type {};
                            ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:79:9: error: expected ‘,’ or ‘...’ before ‘&&’ token
   call(F&& f, Args&&... args)
         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:80:10: error: expected type-specifier before ‘decltype’
       -> decltype(::std::forward<F>(f)(::std::forward<Args>(args)...)) {
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:80:10: error: expected initializer before ‘decltype’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:85:10: error: ‘constexpr’ does not name a type
   static constexpr bool
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:85:10: note: C++11 ‘constexpr’ only available with -std=c++11 or -std=gnu++11
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:94:43: error: ‘decay’ in namespace ‘std’ does not name a template type
       class T, class Td = typename ::std::decay<T>::type,
                                           ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:94:48: error: expected ‘>’ before ‘<’ token
       class T, class Td = typename ::std::decay<T>::type,
                                                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:97:14: error: expected unqualified-id before ‘{’ token
   get(T&& t) {
              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:102:43: error: ‘decay’ in namespace ‘std’ does not name a template type
       class T, class Td = typename ::std::decay<T>::type,
                                           ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:102:48: error: expected ‘>’ before ‘<’ token
       class T, class Td = typename ::std::decay<T>::type,
                                                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:105:8: error: expected ‘,’ or ‘...’ before ‘&&’ token
   get(T&& t) -> decltype(t.get()) {
        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:105:17: error: expected type-specifier before ‘decltype’
   get(T&& t) -> decltype(t.get()) {
                 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:105:17: error: expected initializer before ‘decltype’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:110:43: error: ‘decay’ in namespace ‘std’ does not name a template type
       class T, class Td = typename ::std::decay<T>::type,
                                           ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:110:48: error: expected ‘>’ before ‘<’ token
       class T, class Td = typename ::std::decay<T>::type,
                                                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:114:8: error: expected ‘,’ or ‘...’ before ‘&&’ token
   get(T&& t) -> decltype(*::std::forward<T>(t)) {
        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:114:17: error: expected type-specifier before ‘decltype’
   get(T&& t) -> decltype(*::std::forward<T>(t)) {
                 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:114:17: error: expected initializer before ‘decltype’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:120:31: error: ‘enable_if’ in namespace ‘std’ does not name a type
       class = typename ::std::enable_if<::std::is_function<MT1>::value>::type>
                               ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:120:40: error: expected ‘>’ before ‘<:’ token
       class = typename ::std::enable_if<::std::is_function<MT1>::value>::type>
                                        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:124:57: error: expected unqualified-id before ‘{’ token
                    pmf)(::std::forward<Args>(args)...)) {
                                                         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:131:21: error: expected ‘,’ or ‘...’ before ‘&&’ token
   call(MT B::*pmd, T&& t)
                     ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:132:10: error: expected type-specifier before ‘decltype’
       -> decltype(invoke_impl::get(::std::forward<T>(t)).*pmd) {
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:132:10: error: expected initializer before ‘decltype’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:137:62: error: ‘decay’ in namespace ‘std’ does not name a template type
 template <class F, class... Args, class Fd = typename ::std::decay<F>::type>
                                                              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:137:67: error: expected ‘>’ before ‘<’ token
 template <class F, class... Args, class Fd = typename ::std::decay<F>::type>
                                                                   ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:139:9: error: expected ‘,’ or ‘...’ before ‘&&’ token
 invoke(F&& f, Args&&... args)
         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:140:8: error: expected type-specifier before ‘decltype’
     -> decltype(invoke_impl<Fd>::call(::std::forward<F>(f),
        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:140:8: error: expected initializer before ‘decltype’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:150:43: error: ‘declval’ is not a member of ‘std’
 struct invoke_result<decltype(void(invoke(::std::declval<F>(),
                                           ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:151:43: error: ‘declval’ is not a member of ‘std’
                                           ::std::declval<Args>()...))),
                                           ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:151:68: error: a function call cannot appear in a constant-expression
                                           ::std::declval<Args>()...))),
                                                                    ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:151:69: error: a call to a constructor cannot appear in a constant-expression
                                           ::std::declval<Args>()...))),
                                                                     ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:151:70: error: a function call cannot appear in a constant-expression
                                           ::std::declval<Args>()...))),
                                                                      ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:152:32: error: template argument 1 is invalid
                      F, Args...> {
                                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:169:1: error: expected unqualified-id before ‘using’
 using invoke_result_t = typename invoke_result<F, Args...>::type;
 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:175:9: error: expected nested-name-specifier before ‘type’
   using type = void;
         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:186:1: error: expected unqualified-id before ‘using’
 using void_t = typename detail::make_void<T...>::type;
 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:191:41: error: expected class-name before ‘{’ token
 struct is_invocable : ::std::false_type {};
                                         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:195:20: error: expected template-name before ‘<:’ token
     : bool_constant<::std::is_void<R>::value ||
                    ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:195:20: error: expected ‘{’ before ‘<:’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:195:20: error: expected unqualified-id before ‘<:’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:222:39: error: expected class-name before ‘{’ token
 struct conjunction : ::std::true_type {};
                                       ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:229:25: error: expected template-name before ‘<’ token
     : ::std::conditional<static_cast<bool>(B1::value), conjunction<Bn...>,
                         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:229:25: error: expected ‘{’ before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:229:25: error: expected unqualified-id before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:237:40: error: expected class-name before ‘{’ token
 struct disjunction : ::std::false_type {};
                                        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:244:25: error: expected template-name before ‘<’ token
     : ::std::conditional<static_cast<bool>(B1::value), B1,
                         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:244:25: error: expected ‘{’ before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:244:25: error: expected unqualified-id before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:249:32: error: expected template-name before ‘<’ token
 struct negation : bool_constant<!static_cast<bool>(B::value)> {};
                                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:249:32: error: expected ‘{’ before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:249:32: error: expected unqualified-id before ‘<’ token
In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:25:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/task.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/functional.hpp:47:8: error: ‘invoke_result_t’ does not name a type
 inline invoke_result_t<F, Args...>
        ^
In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:26:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/task.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:47:10: error: ‘constexpr’ does not name a type
   static constexpr ::std::size_t
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:47:10: note: C++11 ‘constexpr’ only available with -std=c++11 or -std=gnu++11
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:55:10: error: expected unqualified-id before ‘<:’ token
 template <::std::size_t...>
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:61:10: error: expected unqualified-id before ‘<:’ token
 template <::std::size_t... I1, ::std::size_t... I2>
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:66:10: error: expected unqualified-id before ‘<:’ token
 template <::std::size_t N>
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:72:8: error: ‘make_index_tuple’ is not a class template
 struct make_index_tuple<1> {
        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:72:28: error: explicit specialization of non-template ‘lely::compat::detail::make_index_tuple’
 struct make_index_tuple<1> {
                            ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:73:11: error: ‘index_tuple’ does not name a type
   typedef index_tuple<0> type;
           ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:77:8: error: ‘make_index_tuple’ is not a class template
 struct make_index_tuple<0> {
        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:77:26: error: ‘lely::compat::detail::make_index_tuple’ is not a template type
 struct make_index_tuple<0> {
                          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:81:42: error: expected nested-name-specifier before ‘make_index_tuple’
 template <class T, T N, class = typename make_index_tuple<N>::type>
                                          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:81:42: error: ‘lely::compat::detail::make_index_tuple’ is not a template
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:81:61: error: expected ‘>’ before ‘::’ token
 template <class T, T N, class = typename make_index_tuple<N>::type>
                                                             ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:85:36: error: ‘index_tuple’ was not declared in this scope
 struct make_integer_sequence<T, N, index_tuple<Ints...>> {
                                    ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:85:52: error: expected parameter pack before ‘...’
 struct make_integer_sequence<T, N, index_tuple<Ints...>> {
                                                    ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:85:55: error: spurious ‘>>’, use ‘>’ to terminate a template argument list
 struct make_integer_sequence<T, N, index_tuple<Ints...>> {
                                                       ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:85:55: error: template argument 3 is invalid
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:97:10: error: expected unqualified-id before ‘<:’ token
 template <::std::size_t... Ints>
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:105:1: error: expected unqualified-id before ‘using’
 using make_integer_sequence =
 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:112:10: error: expected unqualified-id before ‘<:’ token
 template <::std::size_t N>
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:120:1: error: expected unqualified-id before ‘using’
 using index_sequence_for = make_index_sequence<sizeof...(T)>;
 ^
In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/task.hpp:28:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:40:12: error: expected ‘<’ before ‘<:’ token
   template <::std::size_t... I>
            ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:40:12: error: expected unqualified-id before ‘<:’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:48:9: error: expected nested-name-specifier before ‘sequence_’
   using sequence_ =
         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:53:37: error: ‘enable_if’ in namespace ‘std’ does not name a template type
             class = typename ::std::enable_if<!::std::is_same<
                                     ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:53:46: error: expected ‘>’ before ‘<’ token
             class = typename ::std::enable_if<!::std::is_same<
                                              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:55:21: error: expected ‘,’ or ‘...’ before ‘&&’ token
   explicit invoker(F&& f, Args&&... args)
                     ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:55:41: error: default template arguments may not be used in function templates without -std=c++11 or -std=gnu++11
   explicit invoker(F&& f, Args&&... args)
                                         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:59:14: error: storage class specified for ‘operator()’
   operator()() noexcept(
              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:59:14: error: expected ‘;’ at end of member declaration
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:7: error: ‘noexcept’ has not been declared
       noexcept(::std::declval<invoker&>().invoke_(sequence_{})))
       ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:30: error: expected unqualified-id before ‘<’ token
       noexcept(::std::declval<invoker&>().invoke_(sequence_{})))
                              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:30: error: expected ‘)’ before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:30: error: expected ‘)’ before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:23: error: expected ‘;’ at end of member declaration
       noexcept(::std::declval<invoker&>().invoke_(sequence_{})))
                       ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:30: error: expected unqualified-id before ‘<’ token
       noexcept(::std::declval<invoker&>().invoke_(sequence_{})))
                              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:62: error: expected unqualified-id before ‘)’ token
       noexcept(::std::declval<invoker&>().invoke_(sequence_{})))
                                                              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:61:65: error: expected unqualified-id before ‘)’ token
       -> decltype(::std::declval<invoker&>().invoke_(sequence_{})) {
                                                                 ^
In file included from /usr/include/c++/5/new:40:0,
                 from /usr/include/c++/5/ext/new_allocator.h:33,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/c++allocator.h:33,
                 from /usr/include/c++/5/bits/allocator.h:46,
                 from /usr/include/c++/5/string:41,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/error.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/result.hpp:30,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/future.hpp:31,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/usr/include/c++/5/exception:35:37: error: expected ‘}’ before end of line
In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/task.hpp:28:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp: In constructor ‘lely::util::detail::invoker<Tuple>::invoker(F)’:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:56:16: error: ‘forward’ is not a member of ‘std’
       : tuple_{::std::forward<F>(f), ::std::forward<Args>(args)...} {}
                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:56:32: error: expected primary-expression before ‘>’ token
       : tuple_{::std::forward<F>(f), ::std::forward<Args>(args)...} {}
                                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:56:34: error: ‘f’ was not declared in this scope
       : tuple_{::std::forward<F>(f), ::std::forward<Args>(args)...} {}
                                  ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:56:38: error: ‘forward’ is not a member of ‘std’
       : tuple_{::std::forward<F>(f), ::std::forward<Args>(args)...} {}
                                      ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:56:57: error: expected primary-expression before ‘>’ token
       : tuple_{::std::forward<F>(f), ::std::forward<Args>(args)...} {}
                                                         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:56:59: error: ‘args’ was not declared in this scope
       : tuple_{::std::forward<F>(f), ::std::forward<Args>(args)...} {}
                                                           ^
In file included from /usr/include/c++/5/new:40:0,
                 from /usr/include/c++/5/ext/new_allocator.h:33,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/c++allocator.h:33,
                 from /usr/include/c++/5/bits/allocator.h:46,
                 from /usr/include/c++/5/string:41,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/error.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/result.hpp:30,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/future.hpp:31,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/usr/include/c++/5/exception: At global scope:
/usr/include/c++/5/exception:35:37: error: expected unqualified-id before end of line
/usr/include/c++/5/exception:35:37: error: expected ‘}’ before end of line
/usr/include/c++/5/exception:35:37: error: expected ‘}’ before end of line
/usr/include/c++/5/exception:35:37: error: expected ‘}’ before end of line
/usr/include/c++/5/exception:35:37: error: expected declaration before end of line
make[2]: *** [CMakeFiles/test_package.dir/test_package.cpp.o] Error 1
make[1]: *** [CMakeFiles/test_package.dir/all] Error 2
make: *** [all] Error 2
lely-core/2.3.1 (test package): WARN: Using the new toolchains and generators without specifying a build profile (e.g: -pr:b=default) is discouraged and might cause failures and unexpected behavior
lely-core/2.3.1 (test package): WARN: Using the new toolchains and generators without specifying a build profile (e.g: -pr:b=default) is discouraged and might cause failures and unexpected behavior
ERROR: lely-core/2.3.1 (test package): Error in build() method, line 21
	cmake.build()
	ConanException: Error 2 while executing cmake --build "/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/build/Release" '--' '-j3'
********************************************************************************
conan test conan-center-index/recipes/lely-core/all/test_v1_package/conanfile.py lely-core/2.3.1@#1bd0487f5edac978e0c74153cfeece33 -pr /home/conan/w/prod/BuildSingleReference/150594/fd75e8a9-9882-4678-baa0-14f5fea09127/profile_linux_5_libstdcpp_gcc_release_64.lely-core-shared-False.txt -c tools.system.package_manager:mode=install -c tools.system.package_manager:sudo=True
********************************************************************************
Configuration:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.libcxx=libstdc++
compiler.version=5
os=Linux
[options]
lely-core:shared=False
[build_requires]
[env]
[conf]
tools.system.package_manager:mode=install
tools.system.package_manager:sudo=True

lely-core/2.3.1 (test package): Installing package
Requirements
    lely-core/2.3.1 from local cache - Cache
Packages
    lely-core/2.3.1:64c36e8a01f41ae112fe82c8cf99d356cd8040b6 - Cache

Installing (downloading, building) binaries...
lely-core/2.3.1: Already installed!
lely-core/2.3.1 (test package): Generator cmake_find_package created Findlely-core.cmake
lely-core/2.3.1 (test package): Generator cmake created conanbuildinfo.cmake
lely-core/2.3.1 (test package): Generator txt created conanbuildinfo.txt
lely-core/2.3.1 (test package): Aggregating env generators
lely-core/2.3.1 (test package): Generated conaninfo.txt
lely-core/2.3.1 (test package): Generated graphinfo
Using lockfile: '/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_v1_package/build/01fc98db9d9f073371837f1d1e4cb6af259875b5/conan.lock'
Using cached profile from lockfile
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
lely-core/2.3.1 (test package): Calling build()

----Running------
> cd '/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_v1_package/build/01fc98db9d9f073371837f1d1e4cb6af259875b5' && cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE="Release" -DCONAN_IN_LOCAL_CACHE="OFF" -DCONAN_COMPILER="gcc" -DCONAN_COMPILER_VERSION="5" -DCONAN_CXX_FLAGS="-m64" -DCONAN_SHARED_LINKER_FLAGS="-m64" -DCONAN_C_FLAGS="-m64" -DCONAN_LIBCXX="libstdc++" -DCMAKE_INSTALL_PREFIX="/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_v1_package/build/01fc98db9d9f073371837f1d1e4cb6af259875b5/package" -DCMAKE_INSTALL_BINDIR="bin" -DCMAKE_INSTALL_SBINDIR="bin" -DCMAKE_INSTALL_LIBEXECDIR="bin" -DCMAKE_INSTALL_LIBDIR="lib" -DCMAKE_INSTALL_INCLUDEDIR="include" -DCMAKE_INSTALL_OLDINCLUDEDIR="include" -DCMAKE_INSTALL_DATAROOTDIR="share" -DCMAKE_MODULE_PATH="/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_v1_package/build/01fc98db9d9f073371837f1d1e4cb6af259875b5" -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY="ON" -DCONAN_EXPORTED="1" -Wno-dev '/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_v1_package'
-----------------
-- The C compiler identification is GNU 5.4.0
-- The CXX compiler identification is GNU 5.4.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Conan: Using autogenerated Findlely-core.cmake
-- Found lely-core: 2.3.1 (found version "2.3.1") 
-- Library lely-coapp found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-coapp.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-coapp.a
-- Library lely-co found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-co.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-co.a
-- Library lely-io2 found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-io2.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-io2.a
-- Library lely-can found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-can.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-can.a
-- Library lely-ev found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-ev.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-ev.a
-- Library lely-tap found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-tap.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-tap.a
-- Library lely-util found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-util.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-util.a
-- Library lely-libc found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-libc.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-libc.a
-- Library lely-libc found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-libc.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-libc.a
-- Library lely-util found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-util.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-util.a
-- Library lely-tap found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-tap.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-tap.a
-- Library lely-ev found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-ev.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-ev.a
-- Library lely-can found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-can.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-can.a
-- Library lely-io2 found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-io2.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-io2.a
-- Library lely-co found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-co.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-co.a
-- Library lely-coapp found /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-coapp.a
-- Found: /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/lib/liblely-coapp.a
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
-- Configuring done
-- Generating done
-- Build files have been written to: /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_v1_package/build/01fc98db9d9f073371837f1d1e4cb6af259875b5

----Running------
> cmake --build '/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_v1_package/build/01fc98db9d9f073371837f1d1e4cb6af259875b5' '--' '-j3'
-----------------
Scanning dependencies of target test_package
[ 50%] Building CXX object CMakeFiles/test_package.dir/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp.o
CMakeFiles/test_package.dir/build.make:81: recipe for target 'CMakeFiles/test_package.dir/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp.o' failed
CMakeFiles/Makefile2:94: recipe for target 'CMakeFiles/test_package.dir/all' failed
Makefile:102: recipe for target 'all' failed
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY
    CMAKE_INSTALL_BINDIR
    CMAKE_INSTALL_DATAROOTDIR
    CMAKE_INSTALL_INCLUDEDIR
    CMAKE_INSTALL_LIBDIR
    CMAKE_INSTALL_LIBEXECDIR
    CMAKE_INSTALL_OLDINCLUDEDIR
    CMAKE_INSTALL_SBINDIR
    CONAN_COMPILER
    CONAN_COMPILER_VERSION
    CONAN_CXX_FLAGS
    CONAN_C_FLAGS
    CONAN_EXPORTED
    CONAN_IN_LOCAL_CACHE
    CONAN_LIBCXX
    CONAN_SHARED_LINKER_FLAGS


In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/ev.h:24:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.h:25,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/features.h:30:2: error: #error This file requires compiler and library support for the ISO C++11 standard.
 #error This file requires compiler and library support for the ISO C++11 standard.
  ^
In file included from /usr/include/c++/5/type_traits:35:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/functional.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:25,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/task.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/usr/include/c++/5/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
 #error This file requires compiler and library support \
  ^
In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/functional.hpp:27:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:25,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/task.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:37:9: error: expected nested-name-specifier before ‘type’
   using type = typename ::std::remove_cv<
         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:42:1: error: expected unqualified-id before ‘using’
 using remove_cvref_t = typename remove_cvref<T>::type;
 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:65:1: error: expected unqualified-id before ‘using’
 using bool_constant = ::std::integral_constant<bool, B>;
 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:70:49: error: expected class-name before ‘{’ token
 struct is_reference_wrapper : ::std::false_type {};
                                                 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
 struct is_reference_wrapper<::std::reference_wrapper<U>> : ::std::true_type {};
                              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:30: error: ‘reference_wrapper’ is not a member of ‘std’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:8: error: template argument required for ‘struct is_reference_wrapper’
 struct is_reference_wrapper<::std::reference_wrapper<U>> : ::std::true_type {};
        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:73:28: error: expected unqualified-id before ‘<:’ token
 struct is_reference_wrapper<::std::reference_wrapper<U>> : ::std::true_type {};
                            ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:79:9: error: expected ‘,’ or ‘...’ before ‘&&’ token
   call(F&& f, Args&&... args)
         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:80:10: error: expected type-specifier before ‘decltype’
       -> decltype(::std::forward<F>(f)(::std::forward<Args>(args)...)) {
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:80:10: error: expected initializer before ‘decltype’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:85:10: error: ‘constexpr’ does not name a type
   static constexpr bool
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:85:10: note: C++11 ‘constexpr’ only available with -std=c++11 or -std=gnu++11
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:94:43: error: ‘decay’ in namespace ‘std’ does not name a template type
       class T, class Td = typename ::std::decay<T>::type,
                                           ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:94:48: error: expected ‘>’ before ‘<’ token
       class T, class Td = typename ::std::decay<T>::type,
                                                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:97:14: error: expected unqualified-id before ‘{’ token
   get(T&& t) {
              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:102:43: error: ‘decay’ in namespace ‘std’ does not name a template type
       class T, class Td = typename ::std::decay<T>::type,
                                           ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:102:48: error: expected ‘>’ before ‘<’ token
       class T, class Td = typename ::std::decay<T>::type,
                                                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:105:8: error: expected ‘,’ or ‘...’ before ‘&&’ token
   get(T&& t) -> decltype(t.get()) {
        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:105:17: error: expected type-specifier before ‘decltype’
   get(T&& t) -> decltype(t.get()) {
                 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:105:17: error: expected initializer before ‘decltype’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:110:43: error: ‘decay’ in namespace ‘std’ does not name a template type
       class T, class Td = typename ::std::decay<T>::type,
                                           ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:110:48: error: expected ‘>’ before ‘<’ token
       class T, class Td = typename ::std::decay<T>::type,
                                                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:114:8: error: expected ‘,’ or ‘...’ before ‘&&’ token
   get(T&& t) -> decltype(*::std::forward<T>(t)) {
        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:114:17: error: expected type-specifier before ‘decltype’
   get(T&& t) -> decltype(*::std::forward<T>(t)) {
                 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:114:17: error: expected initializer before ‘decltype’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:120:31: error: ‘enable_if’ in namespace ‘std’ does not name a type
       class = typename ::std::enable_if<::std::is_function<MT1>::value>::type>
                               ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:120:40: error: expected ‘>’ before ‘<:’ token
       class = typename ::std::enable_if<::std::is_function<MT1>::value>::type>
                                        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:124:57: error: expected unqualified-id before ‘{’ token
                    pmf)(::std::forward<Args>(args)...)) {
                                                         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:131:21: error: expected ‘,’ or ‘...’ before ‘&&’ token
   call(MT B::*pmd, T&& t)
                     ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:132:10: error: expected type-specifier before ‘decltype’
       -> decltype(invoke_impl::get(::std::forward<T>(t)).*pmd) {
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:132:10: error: expected initializer before ‘decltype’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:137:62: error: ‘decay’ in namespace ‘std’ does not name a template type
 template <class F, class... Args, class Fd = typename ::std::decay<F>::type>
                                                              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:137:67: error: expected ‘>’ before ‘<’ token
 template <class F, class... Args, class Fd = typename ::std::decay<F>::type>
                                                                   ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:139:9: error: expected ‘,’ or ‘...’ before ‘&&’ token
 invoke(F&& f, Args&&... args)
         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:140:8: error: expected type-specifier before ‘decltype’
     -> decltype(invoke_impl<Fd>::call(::std::forward<F>(f),
        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:140:8: error: expected initializer before ‘decltype’
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:150:43: error: ‘declval’ is not a member of ‘std’
 struct invoke_result<decltype(void(invoke(::std::declval<F>(),
                                           ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:151:43: error: ‘declval’ is not a member of ‘std’
                                           ::std::declval<Args>()...))),
                                           ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:151:68: error: a function call cannot appear in a constant-expression
                                           ::std::declval<Args>()...))),
                                                                    ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:151:69: error: a call to a constructor cannot appear in a constant-expression
                                           ::std::declval<Args>()...))),
                                                                     ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:151:70: error: a function call cannot appear in a constant-expression
                                           ::std::declval<Args>()...))),
                                                                      ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:152:32: error: template argument 1 is invalid
                      F, Args...> {
                                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:169:1: error: expected unqualified-id before ‘using’
 using invoke_result_t = typename invoke_result<F, Args...>::type;
 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:175:9: error: expected nested-name-specifier before ‘type’
   using type = void;
         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:186:1: error: expected unqualified-id before ‘using’
 using void_t = typename detail::make_void<T...>::type;
 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:191:41: error: expected class-name before ‘{’ token
 struct is_invocable : ::std::false_type {};
                                         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:195:20: error: expected template-name before ‘<:’ token
     : bool_constant<::std::is_void<R>::value ||
                    ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:195:20: error: expected ‘{’ before ‘<:’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:195:20: error: expected unqualified-id before ‘<:’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:222:39: error: expected class-name before ‘{’ token
 struct conjunction : ::std::true_type {};
                                       ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:229:25: error: expected template-name before ‘<’ token
     : ::std::conditional<static_cast<bool>(B1::value), conjunction<Bn...>,
                         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:229:25: error: expected ‘{’ before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:229:25: error: expected unqualified-id before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:237:40: error: expected class-name before ‘{’ token
 struct disjunction : ::std::false_type {};
                                        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:244:25: error: expected template-name before ‘<’ token
     : ::std::conditional<static_cast<bool>(B1::value), B1,
                         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:244:25: error: expected ‘{’ before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:244:25: error: expected unqualified-id before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:249:32: error: expected template-name before ‘<’ token
 struct negation : bool_constant<!static_cast<bool>(B::value)> {};
                                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:249:32: error: expected ‘{’ before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/type_traits.hpp:249:32: error: expected unqualified-id before ‘<’ token
In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:25:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/task.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/functional.hpp:47:8: error: ‘invoke_result_t’ does not name a type
 inline invoke_result_t<F, Args...>
        ^
In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:26:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/task.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:47:10: error: ‘constexpr’ does not name a type
   static constexpr ::std::size_t
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:47:10: note: C++11 ‘constexpr’ only available with -std=c++11 or -std=gnu++11
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:55:10: error: expected unqualified-id before ‘<:’ token
 template <::std::size_t...>
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:61:10: error: expected unqualified-id before ‘<:’ token
 template <::std::size_t... I1, ::std::size_t... I2>
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:66:10: error: expected unqualified-id before ‘<:’ token
 template <::std::size_t N>
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:72:8: error: ‘make_index_tuple’ is not a class template
 struct make_index_tuple<1> {
        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:72:28: error: explicit specialization of non-template ‘lely::compat::detail::make_index_tuple’
 struct make_index_tuple<1> {
                            ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:73:11: error: ‘index_tuple’ does not name a type
   typedef index_tuple<0> type;
           ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:77:8: error: ‘make_index_tuple’ is not a class template
 struct make_index_tuple<0> {
        ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:77:26: error: ‘lely::compat::detail::make_index_tuple’ is not a template type
 struct make_index_tuple<0> {
                          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:81:42: error: expected nested-name-specifier before ‘make_index_tuple’
 template <class T, T N, class = typename make_index_tuple<N>::type>
                                          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:81:42: error: ‘lely::compat::detail::make_index_tuple’ is not a template
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:81:61: error: expected ‘>’ before ‘::’ token
 template <class T, T N, class = typename make_index_tuple<N>::type>
                                                             ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:85:36: error: ‘index_tuple’ was not declared in this scope
 struct make_integer_sequence<T, N, index_tuple<Ints...>> {
                                    ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:85:52: error: expected parameter pack before ‘...’
 struct make_integer_sequence<T, N, index_tuple<Ints...>> {
                                                    ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:85:55: error: spurious ‘>>’, use ‘>’ to terminate a template argument list
 struct make_integer_sequence<T, N, index_tuple<Ints...>> {
                                                       ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:85:55: error: template argument 3 is invalid
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:97:10: error: expected unqualified-id before ‘<:’ token
 template <::std::size_t... Ints>
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:105:1: error: expected unqualified-id before ‘using’
 using make_integer_sequence =
 ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:112:10: error: expected unqualified-id before ‘<:’ token
 template <::std::size_t N>
          ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/libc/utility.hpp:120:1: error: expected unqualified-id before ‘using’
 using index_sequence_for = make_index_sequence<sizeof...(T)>;
 ^
In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/task.hpp:28:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:40:12: error: expected ‘<’ before ‘<:’ token
   template <::std::size_t... I>
            ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:40:12: error: expected unqualified-id before ‘<:’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:48:9: error: expected nested-name-specifier before ‘sequence_’
   using sequence_ =
         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:53:37: error: ‘enable_if’ in namespace ‘std’ does not name a template type
             class = typename ::std::enable_if<!::std::is_same<
                                     ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:53:46: error: expected ‘>’ before ‘<’ token
             class = typename ::std::enable_if<!::std::is_same<
                                              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:55:21: error: expected ‘,’ or ‘...’ before ‘&&’ token
   explicit invoker(F&& f, Args&&... args)
                     ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:55:41: error: default template arguments may not be used in function templates without -std=c++11 or -std=gnu++11
   explicit invoker(F&& f, Args&&... args)
                                         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:59:14: error: storage class specified for ‘operator()’
   operator()() noexcept(
              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:59:14: error: expected ‘;’ at end of member declaration
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:7: error: ‘noexcept’ has not been declared
       noexcept(::std::declval<invoker&>().invoke_(sequence_{})))
       ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:30: error: expected unqualified-id before ‘<’ token
       noexcept(::std::declval<invoker&>().invoke_(sequence_{})))
                              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:30: error: expected ‘)’ before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:30: error: expected ‘)’ before ‘<’ token
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:23: error: expected ‘;’ at end of member declaration
       noexcept(::std::declval<invoker&>().invoke_(sequence_{})))
                       ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:30: error: expected unqualified-id before ‘<’ token
       noexcept(::std::declval<invoker&>().invoke_(sequence_{})))
                              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:60:62: error: expected unqualified-id before ‘)’ token
       noexcept(::std::declval<invoker&>().invoke_(sequence_{})))
                                                              ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:61:65: error: expected unqualified-id before ‘)’ token
       -> decltype(::std::declval<invoker&>().invoke_(sequence_{})) {
                                                                 ^
In file included from /usr/include/c++/5/new:40:0,
                 from /usr/include/c++/5/ext/new_allocator.h:33,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/c++allocator.h:33,
                 from /usr/include/c++/5/bits/allocator.h:46,
                 from /usr/include/c++/5/string:41,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/error.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/result.hpp:30,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/future.hpp:31,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/usr/include/c++/5/exception:35:37: error: expected ‘}’ before end of line
In file included from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/task.hpp:28:0,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/exec.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:27,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp: In constructor ‘lely::util::detail::invoker<Tuple>::invoker(F)’:
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:56:16: error: ‘forward’ is not a member of ‘std’
       : tuple_{::std::forward<F>(f), ::std::forward<Args>(args)...} {}
                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:56:32: error: expected primary-expression before ‘>’ token
       : tuple_{::std::forward<F>(f), ::std::forward<Args>(args)...} {}
                                ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:56:34: error: ‘f’ was not declared in this scope
       : tuple_{::std::forward<F>(f), ::std::forward<Args>(args)...} {}
                                  ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:56:38: error: ‘forward’ is not a member of ‘std’
       : tuple_{::std::forward<F>(f), ::std::forward<Args>(args)...} {}
                                      ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:56:57: error: expected primary-expression before ‘>’ token
       : tuple_{::std::forward<F>(f), ::std::forward<Args>(args)...} {}
                                                         ^
/home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/invoker.hpp:56:59: error: ‘args’ was not declared in this scope
       : tuple_{::std::forward<F>(f), ::std::forward<Args>(args)...} {}
                                                           ^
In file included from /usr/include/c++/5/new:40:0,
                 from /usr/include/c++/5/ext/new_allocator.h:33,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/c++allocator.h:33,
                 from /usr/include/c++/5/bits/allocator.h:46,
                 from /usr/include/c++/5/string:41,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/error.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/util/result.hpp:30,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/future.hpp:31,
                 from /home/conan/w/prod/BuildSingleReference/.conan/data/lely-core/2.3.1/_/_/package/64c36e8a01f41ae112fe82c8cf99d356cd8040b6/include/lely/ev/loop.hpp:28,
                 from /home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp:1:
/usr/include/c++/5/exception: At global scope:
/usr/include/c++/5/exception:35:37: error: expected unqualified-id before end of line
/usr/include/c++/5/exception:35:37: error: expected ‘}’ before end of line
/usr/include/c++/5/exception:35:37: error: expected ‘}’ before end of line
/usr/include/c++/5/exception:35:37: error: expected ‘}’ before end of line
/usr/include/c++/5/exception:35:37: error: expected declaration before end of line
make[2]: *** [CMakeFiles/test_package.dir/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_package/test_package.cpp.o] Error 1
make[1]: *** [CMakeFiles/test_package.dir/all] Error 2
make: *** [all] Error 2
ERROR: lely-core/2.3.1 (test package): Error in build() method, line 12
	cmake.build()
	ConanException: Error 2 while executing cmake --build '/home/conan/w/prod/BuildSingleReference/conan-center-index/recipes/lely-core/all/test_v1_package/build/01fc98db9d9f073371837f1d1e4cb6af259875b5' '--' '-j3'