Re: [gentoo-user] Back to bussiness with freecad ... but ...

[Mick]

On Wednesday 10 May 2017 19:43:34 tuxic@××××××.de wrote:
> Hi,
>
> ok it seems that previously reported problems
> with compilation problems of the dependencies
> of freecad had gone.
>
> Reason was a mixed up configuration of gcc.
>
> I returned to gcc 5* and that did it.
>
> Now emerging reaches the final step and
> starts compiling freecad, and ..... failed.
>
> I added the build.log as 7zip compressed file
> to this email.
>
> Waht happens here ... it fails so silently...
>
> Thank you very much in advance for any help!
> Cheers
> Meino

This does not look like a silent failure to me.  If you search your log for 
'Error 1' you'll come across this:
==================================
cd /var/tmp/portage/media-
gfx/freecad-0.16/work/freecad-0.16_build/src/Mod/Image/App && /usr/bin/x86_64-
pc-linux-gnu-g++ -DHAVE_CONFIG_H -DImage_EXPORTS -DQT_CORE_LIB -DQT_GUI_LIB -
DQT_NETWORK_LIB -DQT_NO_DEBUG -DQT_OPENGL_LIB -DQT_SVG_LIB -DQT_UITOOLS_LIB -
DQT_WEBKIT_LIB -DQT_XML_LIB -D_OCC64 -I/var/tmp/portage/media-
gfx/freecad-0.16/work/freecad-0.16_build -isystem /usr/include/qt4 -isystem 
/usr/include/qt4/QtOpenGL -isystem /usr/include/qt4/QtSvg -isystem 
/usr/include/qt4/QtUiTools -isystem /usr/include/qt4/QtWebKit -isystem 
/usr/include/qt4/QtGui -isystem /usr/include/qt4/QtXml -isystem 
/usr/include/qt4/QtNetwork -isystem /usr/include/qt4/QtCore -
I/var/tmp/portage/media-gfx/freecad-0.16/work/freecad-0.16_build/src -
I/var/tmp/portage/media-gfx/freecad-0.16/work/FreeCAD-0.16/src -
I/usr/include/python2.7   -DNDEBUG -Wall -Wno-deprecated -Wno-write-strings -
march=native -O2 -pipe -std=c++11 -D_OCC64 -fPIC   -o 
CMakeFiles/Image.dir/AppImage.cpp.o -c /var/tmp/portage/media-
gfx/freecad-0.16/work/FreeCAD-0.16/src/Mod/Image/App/AppImage.cppui/moc_DownloadItem.cppx11::basic_string<char, 
std::char_traits<char>, std::allocator<char> > >, 
std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, 
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> 
> > > > >::maybe_assign(boost::match_results<__gnu_cxx::__normal_iterator<char
const*, std::__cxx11::basic_string<char, std::char_traits<char>, 
std::allocator<char> > >, 
std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, 
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> 
> > > > > const&)'cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, 
std::char_traits<char>, std::allocator<char> > > > 
const&)'::parse(boost::any&, std::vector<std::__cxx11::basic_string<char, 
std::char_traits<char>, std::allocator<char> >, 
std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, 
std::allocator<char> > > > const&, bool) const'
../../lib/libFreeCADApp.so: undefined reference to 
`boost::re_detail_106300::perl_matcher<__gnu_cxx::__normal_iterator<char 
const*, std::__cxx11::basic_string<char, std::char_traits<char>, 
std::allocator<char> > >, 
std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, 
std::__cxx11::basic_string<char, std::char_traits<char>, std::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)')'unsigned int, unsigned int)'ence to 
`boost::program_options::error_with_option_name::error_with_option_name(std::__cxx11::basic_string<char, 
std::char_traits<char>, std::allocator<char> > const&, 
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> 
> const&, std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > const&, int)'bFreeCADApp.so: undefined reference to 
`boost::program_options::error_with_option_name::substitute_placeholders(std::__cxx11::basic_string<char, 
std::char_traits<char>, std::allocator<char> > const&) const'undefined 
reference to 
`boost::program_options::to_internal(std::__cxx11::basic_string<char, 
std::char_traits<char>, std::allocator<char> > const&)'
../../lib/libFreeCADApp.so: undefined reference to 
`boost::program_options::validate(boost::any&, 
std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, 
std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, 
std::char_traits<char>, std::allocator<char> > > > const&, 
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> 
>*, int)'2]: *** [src/Main/CMakeFiles/FreeCADMainCmd.dir/build.make:112:
bin/FreeCADCmd] Error 1
make[2]: Leaving directory '/var/tmp/portage/media-
gfx/freecad-0.16/work/freecad-0.16_build'
make[1]: *** [CMakeFiles/Makefile2:867: 
src/Main/CMakeFiles/FreeCADMainCmd.dir/all] Error 2
===================================================

So, it seems it fails to build the binaries for FreeCAD because it doesn't 
like something about boost, which you probably had built with a different 
version of gcc.  In the first instance I would re-emerge boost and try again 
to emerge FreeCAD, both with the *same* version of gcc.

-- 
Regards,
Mick