Just to provide some extra info, this is the output of the compiler when I query for the __cpp* definitions

./staging_dir/toolchain-arm_arm1176jzf-s+vfp_gcc-5.3.0_musl-1.1.15_eabi/bin/arm-openwrt-linux-g++ -dM -E -x c++ -std=c++14 /dev/null | fgrep __cpp
#define __cpp_attributes 200809
#define __cpp_aggregate_nsdmi 201304
#define __cpp_static_assert 200410
#define __cpp_binary_literals 201304
#define __cpp_variadic_templates 200704
#define __cpp_variable_templates 201304
#define __cpp_delegating_constructors 200604
#define __cpp_raw_strings 200710
#define __cpp_ref_qualifiers 200710
#define __cpp_rvalue_reference 200610
#define __cpp_nsdmi 200809
#define __cpp_initializer_lists 200806
#define __cpp_lambdas 200907
#define __cpp_unicode_characters 200704
#define __cpp_decltype_auto 201304
#define __cpp_rtti 199711
#define __cpp_digit_separators 201309
#define __cpp_unicode_literals 200710
#define __cpp_sized_deallocation 201309
#define __cpp_range_based_for 200907
#define __cpp_return_type_deduction 201304
#define __cpp_decltype 200707
#define __cpp_inheriting_constructors 200802
#define __cpp_runtime_arrays 198712
#define __cpp_alias_templates 200704
#define __cpp_constexpr 201304
#define __cpp_exceptions 199711
#define __cpp_generic_lambdas 201304
#define __cpp_user_defined_literals 200809
#define __cpp_init_captures 201304





On 6 October 2016 at 22:55, Carlos Ferreira <carlosmf.pt@gmail.com> wrote:
Hello

I'm having some issues regarding the features check, when build Boost using OpenWRT GCC 5.3.0 cross-compiler for armv7. I'm building against musl. 

I have passed -std=c++14 to the cxxflags, but it seems to have no effect.

This is the features output
    - 32-bit                   : yes
    - arm                      : yes
    - symlinks supported       : yes
    - C++11 mutex              : yes
    - lockfree boost::atomic_flag : no
    - Boost.Config Feature Check: cxx11_auto_declarations : no
    - Boost.Config Feature Check: cxx11_constexpr : no
    - Boost.Config Feature Check: cxx11_defaulted_functions : no
    - Boost.Config Feature Check: cxx11_final : no
    - Boost.Config Feature Check: cxx11_hdr_tuple : no
    - Boost.Config Feature Check: cxx11_lambdas : no
    - Boost.Config Feature Check: cxx11_noexcept : no
    - Boost.Config Feature Check: cxx11_nullptr : no
    - Boost.Config Feature Check: cxx11_rvalue_references : no
    - Boost.Config Feature Check: cxx11_template_aliases : no
    - Boost.Config Feature Check: cxx11_thread_local : no
    - Boost.Config Feature Check: cxx11_variadic_templates : no
    - has_icu builds           : no
warning: Graph library does not contain MPI-based parallel components.
note: to enable them, add "using mpi ;" to your user-config.jam
    - zlib                     : yes
    - iconv (libc)             : no
    - iconv (separate)         : yes
    - icu                      : no
    - icu (lib64)              : no
    - native-atomic-int32-supported : yes
    - pthread-supports-robust-mutexes : yes
    - compiler-supports-visibility : yes
    - gcc visibility           : yes
    - long double support      : yes
    - zlib                     : yes

What am I missing, so that all those cxx_* features can be checked?


--

Carlos Miguel Ferreira
Researcher at Telecommunications Institute
Aveiro - Portugal
Work E-mail - cmf@av.it.pt
Skype & GTalk -> carlosmf.pt@gmail.com



--

Carlos Miguel Ferreira
Researcher at Telecommunications Institute
Aveiro - Portugal
Work E-mail - cmf@av.it.pt
Skype & GTalk -> carlosmf.pt@gmail.com
LinkedIn -> http://www.linkedin.com/in/carlosmferreira