[lmi] An lmi anomaly with gcc-6.3 [Was: gcc-6.3 warnings for wx sha 41045df7]

[Greg Chicares]

On 2017-08-21 00:35, Greg Chicares wrote:
[...]
> I hope we can abandon gcc-4.9 and just use 6.3 for lmi: 6.3 seems to
> work perfectly well in a cygwin VM here

I did see one imperfection when I ran this command:

logfile=log-`date -u +'%Y%m%dT%H%MZ'`; echo "Log file is '$logfile.tar.bz2'."; 
./install_msw.sh >$logfile 2>&1; tar -cjf $logfile.tar.bz2 $logfile

The log file says:

PATH="/MinGW_/bin/:$PATH" /MinGW_/bin/g++ -o wx_test.exe c_regex_traits.o 
cpp_regex_traits.o cregex.o fileiter.o icu.o instances.o posix_api.o regex.o 
regex_debug.o regex_raw_buffer.o regex_traits_defaults.o static_mutex.o 
usinstances.o w32_regex_traits.o wc_regex_traits.o wide_posix_api.o 
winstances.o main_wx_test.o wx_test_about_version.o wx_test_benchmark_census.o 
wx_test_calculation_summary.o wx_test_config_settings.o wx_test_create_open.o 
wx_test_default_input.o wx_test_default_update.o wx_test_expiry_dates.o 
wx_test_input_sequences.o wx_test_input_validation.o wx_test_log_errors.o 
wx_test_paste_census.o wx_test_pdf_create.o wx_test_validate_output.o 
lmi_msw_res.o skeleton.dll liblmi.dll -L . -L /opt/lmi/local/lib -L 
/opt/lmi/local/bin  -L /opt/lmi/local/lib  -lwx_mswu-3.1-i686-w64-mingw32 
-mwindows    -lexslt -lxslt -lxml2      -Wl,-Map,wx_test.exe.map

cregex.o: In function `ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal

_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS_9sub

_matchISC_EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEEC1ESC_SC_RNS_13ma

tch_resultsISC_SF_EERKNS_11basic_regexIcSJ_EENS_15regex_constants12_match_fla

gsESC_':

/opt/lmi/third_party/include/boost/regex/v4/perl_matcher_common.hpp:44: undef

ined reference to `boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterato

r<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::

allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iter

ator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, st

d::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits

<char> > >::construct_init(boost::basic_regex<char, boost::regex_traits<char,

 boost::cpp_regex_traits<char> > > const&, 
boost::regex_constants::_match_flags)'


...followed by four other 'cregex.o' errors, and 'wx_test.exe'
fails to link. All other programs link correctly. Building
'wx_test.exe' later also works, so this is not a critical
problem.