Package: libboost-regex1.58.0 Version: 1.58.0+dfsg-5+b1 Severity: important
Dear maintainer, when compiling src:mrs with g++-6 I get unresolved symbols /usr/bin/c++ -o mrs -I. obj/M6Server.o [...] -lboost_regex [...] obj/M6Server.o: In function `boost::cpp_regex_traits<char>::transform_primary[abi:cxx11](char const*, char const*) const': /usr/include/boost/regex/v4/cpp_regex_traits.hpp:965: undefined reference to `boost::re_detail::cpp_regex_traits_implementation<char>::transform_primary[abi:cxx11](char const*, char const*) const' obj/M6Server.o: In function `boost::cpp_regex_traits<char>::transform[abi:cxx11](char const*, char const*) const': /usr/include/boost/regex/v4/cpp_regex_traits.hpp:961: undefined reference to `boost::re_detail::cpp_regex_traits_implementation<char>::transform[abi:cxx11](char const*, char const*) const' ... now in the symbol table I get objdump --dynamic-syms libboost_regex.so.1.58.0 \ | c++filt \ | sed -e "s/^[0-9a-f]* *\([A-Za-z]\) *D[A-Z] \.[a-z]*/\1/" \ | sed -e "s/[0-9a-f]* Base *//" | grep "transform_primary" g boost::c_regex_traits<wchar_t>::transform_primary[abi:cxx11](wchar_t const*, wchar_t const*) w boost::re_detail::cpp_regex_traits_implementation<wchar_t>::transform_primary(wchar_t const*, wchar_t const*) const w boost::re_detail::cpp_regex_traits_implementation<char>::transform_primary(char const*, char const*) const g boost::c_regex_traits<char>::transform_primary[abi:cxx11](char const*, char const*) i.e. the symbols are not available. Given http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/boost_regex/ref/regex_traits.html I thought compiling with -DBOOST_REGEX_USE_C_LOCALE would get me somewhere, but then I get a lot more missing symbols, and they are all without the [abi:cxx11] tag. src:mrs requires -std=c++11, but I assume for the boost package the g++ default was used, and with g++-5 this is -std=c++03, therefore, final guess is that there is a problem with compiling boost with -std=c++11 and then linking against a boost library that was compiled with -std=c++03. Best, Gert -- System Information: Debian Release: stretch/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.5.0-2-amd64 (SMP w/2 CPU cores) Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages libboost-regex1.58.0 depends on: ii libc6 2.22-7 ii libgcc1 1:6-20160117-1 ii libicu55 55.1-7 ii libstdc++6 6-20160117-1 libboost-regex1.58.0 recommends no packages. libboost-regex1.58.0 suggests no packages. -- no debconf information