<div dir="ltr">  Performing configuration checks<br><br>    - default address-model    : 32-bit<br>    - default architecture     : x86<br>    - C++11 mutex              : no<br>    - Boost.Config Feature Check: cxx11_auto_declarations : no<br>    - Boost.Config Feature Check: cxx11_constexpr : no<br>    - Boost.Config Feature Check: cxx11_defaulted_functions : no<br>    - Boost.Config Feature Check: cxx11_final : no<br>    - Boost.Config Feature Check: cxx11_hdr_mutex : no<br>    - Boost.Config Feature Check: cxx11_hdr_tuple : no<br>    - Boost.Config Feature Check: cxx11_lambdas : no<br>    - Boost.Config Feature Check: cxx11_noexcept : no<br>    - Boost.Config Feature Check: cxx11_nullptr : no<br>    - Boost.Config Feature Check: cxx11_rvalue_references : no<br>    - Boost.Config Feature Check: cxx11_template_aliases : no<br>    - Boost.Config Feature Check: cxx11_thread_local : no<br>    - Boost.Config Feature Check: cxx11_variadic_templates : no<br>    - has_icu builds           : no<br>warning: Graph library does not contain MPI-based parallel components.<br>note: to enable them, add &quot;using mpi ;&quot; to your user-config.jam<br>    - zlib                     : no<br>    - bzip2                    : no<br>    - lzma                     : no<br>    - zstd                     : no<br>    - iconv (libc)             : no<br>    - iconv (separate)         : no<br>    - icu                      : no<br>    - icu (lib64)              : no<br>    - native-atomic-int32-supported : no<br>    - message-compiler         : yes<br>    - native-syslog-supported  : no<br>    - pthread-supports-robust-mutexes : no<br>    - compiler-supports-ssse3  : no<br>    - compiler-supports-avx2   : no<br>    - gcc visibility           : no<br><b>    - long double support      : no</b><br><div><b><br></b></div><div><b><br></b></div><div>how  dose <b>long double support  determined</b></div><div><br></div><div>is there a test file to <b>determine the future?</b></div><div><b>i just found </b>has_long_double_support.cpp</div><div><div style="color:rgb(212,212,212);background-color:rgb(30,30,30);font-family:Consolas,&quot;Courier New&quot;,monospace;font-size:14px;line-height:19px;white-space:pre-wrap"><div><span style="color:rgb(197,134,192)">#include</span><span style="color:rgb(86,156,214)"> </span><span style="color:rgb(206,145,120)">&lt;boost/math/tools/config.hpp&gt;</span></div><br><div><span style="color:rgb(197,134,192)">#ifdef</span><span style="color:rgb(86,156,214)"> </span><span style="color:rgb(220,220,170)">BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS</span></div><div><span style="color:rgb(197,134,192)">#error</span><span style="color:rgb(86,156,214)"> </span><span style="color:rgb(206,145,120)">&quot;long double support is not supported by Boost.Math on this Plaform: the long double version of the TR1 library will not be built.&quot;</span></div><div><span style="color:rgb(197,134,192)">#endif</span></div><div class="gmail-yj6qo"></div><div class="gmail-adL"><br>

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