Boost 1.76 RC1 Build Failure

[mborland]

Built using GCC-11 on Fedora 34. The following fails:

gcc.compile.c++ bin.v2/libs/regex/build/gcc-11/release/threading-multi/visibility-hidden/wide_posix_api.o
In file included from ./boost/regex/v5/regex_traits.hpp:26,
                 from ./boost/regex/regex_traits.hpp:30,
                 from ./boost/regex/v5/regex.hpp:31,
                 from ./boost/regex.hpp:34,
                 from libs/regex/build/../src/wide_posix_api.cpp:25:
./boost/regex/v5/regex_traits_defaults.hpp: In function ‘bool boost::re_detail_500::is_combining(charT)’:
./boost/regex/v5/regex_traits_defaults.hpp:594:82: error: ‘numeric_limits’ is not a member of ‘std’
  594 |    return (c <= static_cast<charT>(0)) ? false : ((c >= static_cast<charT>((std::numeric_limits<uint_least16_t>::max)())) ? false : is_combining_implementation(static_cast<unsigned short>(c)));
      |                                                                                  ^~~~~~~~~~~~~~
./boost/regex/v5/regex_traits_defaults.hpp:594:111: error: expected primary-expression before ‘>’ token
  594 |    return (c <= static_cast<charT>(0)) ? false : ((c >= static_cast<charT>((std::numeric_limits<uint_least16_t>::max)())) ? false : is_combining_implementation(static_cast<unsigned short>(c)));
      |                                                                                                               ^
./boost/regex/v5/regex_traits_defaults.hpp:594:114: error: ‘::max’ has not been declared; did you mean ‘std::max’?
  594 |    return (c <= static_cast<charT>(0)) ? false : ((c >= static_cast<charT>((std::numeric_limits<uint_least16_t>::max)())) ? false : is_combining_implementation(static_cast<unsigned short>(c)));
      |                                                                                                                  ^~~
      |                                                                                                                  std::max
In file included from /usr/include/c++/11/algorithm:62,
                 from ./boost/regex/v5/regex_workaround.hpp:23,
                 from ./boost/regex/v5/regex.hpp:29,
                 from ./boost/regex.hpp:34,
                 from libs/regex/build/../src/wide_posix_api.cpp:25:
/usr/include/c++/11/bits/stl_algo.h:3467:5: note: ‘std::max’ declared here
 3467 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
In file included from ./boost/regex/v5/regex_traits.hpp:26,
                 from ./boost/regex/regex_traits.hpp:30,
                 from ./boost/regex/v5/regex.hpp:31,
                 from ./boost/regex.hpp:34,
                 from libs/regex/build/../src/wide_posix_api.cpp:25:
./boost/regex/v5/regex_traits_defaults.hpp: In function ‘intmax_t boost::re_detail_500::global_toi(const charT*&, const charT*, int, const traits&)’:
./boost/regex/v5/regex_traits_defaults.hpp:915:32: error: ‘numeric_limits’ is not a member of ‘std’
  915 |    std::intmax_t limit = (std::numeric_limits<std::intmax_t>::max)() / radix;
      |                                ^~~~~~~~~~~~~~
./boost/regex/v5/regex_traits_defaults.hpp:915:60: error: expected primary-expression before ‘>’ token
  915 |    std::intmax_t limit = (std::numeric_limits<std::intmax_t>::max)() / radix;
      |                                                            ^
./boost/regex/v5/regex_traits_defaults.hpp:915:63: error: ‘::max’ has not been declared; did you mean ‘std::max’?
  915 |    std::intmax_t limit = (std::numeric_limits<std::intmax_t>::max)() / radix;
      |                                                               ^~~
      |                                                               std::max
In file included from /usr/include/c++/11/algorithm:62,
                 from ./boost/regex/v5/regex_workaround.hpp:23,
                 from ./boost/regex/v5/regex.hpp:29,
                 from ./boost/regex.hpp:34,
                 from libs/regex/build/../src/wide_posix_api.cpp:25:
/usr/include/c++/11/bits/stl_algo.h:3467:5: note: ‘std::max’ declared here
 3467 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~

    "g++"   -fvisibility-inlines-hidden -fPIC -m64 -pthread -O3 -finline-functions -Wno-inline -Wall -fvisibility=hidden  -DBOOST_ALL_NO_LIB=1 -DBOOST_HAS_ICU=1 -DBOOST_REGEX_DYN_LINK=1 -DNDEBUG  -I"." -I"/usr/include"  -c -o "bin.v2/libs/regex/build/gcc-11/release/threading-multi/visibility-hidden/wide_posix_api.o" "libs/regex/build/../src/wide_posix_api.cpp"

...failed gcc.compile.c++ bin.v2/libs/regex/build/gcc-11/release/threading-multi/visibility-hidden/wide_posix_api.o...

PR to follow

[mborland]

Resolved in RC2