2015 openxcom version has problems:
1>MSVCRTD.lib(initializers.obj) : warning LNK4098: defaultlib 'msvcrt.lib' conflicts with use of other libs; use /NODEFAULTLIB:library
1>Ufo.obj : error LNK2001: unresolved external symbol "public: static class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > YAML::detail::node_data::empty_scalar" (?empty_scalar@node_data@detail@YAML@@2V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@A)
1>Vehicle.obj : error LNK2001: unresolved external symbol "public: static class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > YAML::detail::node_data::empty_scalar" (?empty_scalar@node_data@detail@YAML@@2V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@A)
1>Waypoint.obj : error LNK2001: unresolved external symbol "public: static class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > YAML::detail::node_data::empty_scalar" (?empty_scalar@node_data@detail@YAML@@2V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@A)
1>WeightedOptions.obj : error LNK2001: unresolved external symbol "public: static class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > YAML::detail::node_data::empty_scalar" (?empty_scalar@node_data@detail@YAML@@2V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@A)
1>Target.obj : error LNK2001: unresolved external symbol "public: static class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > YAML::detail::node_data::empty_scalar" (?empty_scalar@node_data@detail@YAML@@2V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@A)
1>TerrorSite.obj : error LNK2001: unresolved ext
This sucks hard:
https://stackoverflow.com/questions/3007312/resolving-lnk4098-defaultlib-msvcrt-conflicts-withNot sure if this is main issue, cannot get yaml working as well ?!
Not including 2015 dependencies in GIT is apperently a major mistake ?!?!?!?