[GitHub] [arrow] abcbarryn commented on issue #34341: [C++] Arrow version 5 or later fails to compile/link with gcc version 7 (or earlier)

["abcbarryn (via GitHub)" <gi...@apache.org>]

abcbarryn commented on issue #34341:
URL: https://github.com/apache/arrow/issues/34341#issuecomment-1445222136

   Below is the original error with the original source before I started trying to fix it. I checked with the latest version of the source and it is still occurring. in gcc c++ version 7, std::char_traits<char>::length(const char_type*) does not return a contstexpr.
   
   ```
   In file included from /usr/include/c++/7/bits/basic_string.h:48:0,
                    from /usr/include/c++/7/string:52,
                    from /usr/include/c++/7/bits/locale_classes.h:40,
                    from /usr/include/c++/7/bits/ios_base.h:41,
                    from /usr/include/c++/7/ios:42,
                    from /usr/src/arrow-apache-arrow-12.0.0/cpp/src/arrow/vendored/datetime/date.h:53,
                    from /usr/src/arrow-apache-arrow-12.0.0/cpp/src/arrow/vendored/datetime/tz.h:105,
                    from /usr/src/arrow-apache-arrow-12.0.0/cpp/src/arrow/vendored/datetime/tz_private.h:31,
                    from /usr/src/arrow-apache-arrow-12.0.0/cpp/src/arrow/vendored/datetime/tz.cpp:90:
   /usr/include/c++/7/string_view: In function ‘std::string_view arrow_vendored::date::extract_tz_name(const char*)’:
   /usr/src/arrow-apache-arrow-12.0.0/cpp/src/arrow/vendored/datetime/tz.cpp:3768:38:   in constexpr expansion of ‘std::basic_string_view<char>(((const char*)"zoneinfo"))’
   /usr/include/c++/7/string_view:100:58: error: call to non-constexpr function ‘static std::size_t std::char_traits<char>::length(const char_type*)’
          : _M_len{__str == nullptr ? 0 : traits_type::length(__str)},
                                          ~~~~~~~~~~~~~~~~~~~^~~~~~~
   make[2]: *** [src/arrow/CMakeFiles/arrow_objlib.dir/vendored/datetime/tz.cpp.o] Error 1
   make[1]: *** [src/arrow/CMakeFiles/arrow_objlib.dir/all] Error 2
   make: *** [all] Error 2
   ```


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