Wt

CentOS 7 is using GCC 4.85 and CMAKE 2.8 as default, but WT 4.0.4 (building from sources) needs at least GCC 4.9 or higher and CMAKE 3.1 or higher.

For that reason i did install devtoolset7 which uses GCC 7, and also did build CMAKE 3.9.6 from the sources and BOOST 1.6.4 too.

which cmake => /usr/local/bin/cmake

cmake ---version => cmake version 3.9.6

gcc ---version => 7.3.1 20180303 (Red Hat 7.3.1-5)

which gcc => /opt/rh/devtoolset-7/root/usr/bin/gcc

I did just compile this code using EclipseCDT Photon:

#include

#include "main.h"

#ifndef MSWINDOWS

#include

#endif

#ifndef WT_WIN32

extern char **environ;

#endif // WT_WIN32

using namespace std;

int main(int argc, char **argv) {

cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!!

return 0;

}

Get the following errors:

Build of configuration Release for project HelloWorld

make all

Building file: ../src/HelloWorld.cpp

Invoking: Cross G Compiler

g -std=c++1y -I/usr/include -I/usr/local/include -O3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/HelloWorld.d" -MT"src/HelloWorld.o" -o "src/HelloWorld.o" "../src/HelloWorld.cpp"

Finished building: ../src/HelloWorld.cpp

Building target: HelloWorld

Invoking: Cross G Linker

g -L/usr/local/lib -L/usr/local/lib64 -o "HelloWorld" ./src/HelloWorld.o -lstdc -lwtd -lwthttpd -lwtdbosqlite3d -lboost_system -lboost_program_options -lboost_date_time -lboost_filesystem -lboost_iostreams -lboost_locale -lboost_regex -lboost_serialization -lboost_signals -lboost_thread -lboost_timer

/usr/local/lib/libwthttpd.so: undefined reference to `boost::program_options::validate(boost::any&, std::vector<std::_cxx11::basic_string<char, std::char_traits, std::allocator >, std::allocator<std::cxx11::basic_string<char, std::char_traits, std::allocator > > > const&, std::_cxx11::basic_string<char, std::char_traits, std::allocator >*, int)'

/usr/local/lib/libwthttpd.so: undefined reference to `boost::program_options::arg[abi:cxx11]'

/usr/local/lib/libwthttpd.so: undefined reference to `boost::program_options::detail::cmdline::cmdline(std::vector<std::_cxx11::basic_string<char, std::char_traits, std::allocator >, std::allocator<std::_cxx11::basic_string<char, std::char_traits, std::allocator > > > const&)'

/usr/local/lib/libwthttpd.so: undefined reference to `boost::program_options::options_description::options_description(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, unsigned int, unsigned int)'

/usr/local/lib/libwthttpd.so: undefined reference to `boost::program_options::error_with_option_name::error_with_option_name(std::_cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::_cxx11::basic_string<char, std::char_traits, std::allocator > const&, int)'

/usr/local/lib/libwthttpd.so: undefined reference to `boost::program_options::validate(boost::any&, std::vector<std::_cxx11::basic_string<char, std::char_traits, std::allocator >, std::allocator<std::_cxx11::basic_string<char, std::char_traits, std::allocator > > > const&, bool*, int)'

/usr/local/lib/libwthttpd.so: undefined reference to `boost::program_options::error_with_option_name::substitute_placeholders(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&) const'

/usr/local/lib/libwthttpd.so: undefined reference to `boost::program_options::to_internal(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&)'

/usr/local/lib/libwthttpd.so: undefined reference to `boost::program_options::abstract_variables_map::operator[](std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&) const'

/usr/local/lib/libwthttpd.so: undefined reference to `boost::program_options::value_semantic_codecvt_helper::parse(boost::any&, std::vector<std::_cxx11::basic_string<char, std::char_traits, std::allocator >, std::allocator<std::_cxx11::basic_string<char, std::char_traits, std::allocator > > > const&, bool) const'

/usr/local/lib/libwthttpd.so: undefined reference to `boost::program_options::invalid_option_value::invalid_option_value(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&)'

/usr/local/lib/libwthttpd.so: undefined reference to `boost::program_options::validation_error::get_template[abi:cxx11](boost::program_options::validation_error::kind_t)'

collect2: Fehler: ld gab 1 als Ende-Status zurück

make: * [HelloWorld] Fehler 1

Build Failed. 1 errors, 0 warnings.

I have no idea what could be wrong here, any suggests?

Thanks in advance!