Compile on Linux with gcc-c++ 8.0.1

[sgrogan]

I either need the bundled smesh fixed to work with GCC 8 or somewhere else to get smesh

Late to the party, but there is this fork of SMESH https://github.com/LaughlinResearch/SMESH
This is what we are using for our Conda based builds. Not sure if it works with older oce, it does work for occt 7.2 and 7.3. The good thing is it doesn't depend on the whole Salome stack.

Thanks for your work to support FreeCAD

[freman]

I can confirm that the header fix works as well, at least on Fedora Rawhide w/ GCC 8.2.x...

Thanks for the confirmation. I have added the fix: git commit 5ff383b46

I have what may be a related Fedora build issue. I just upgraded to Fedora 29 which uses gcc version 8.2.1 20181105 .

I got FreeCAD-master on the 15th Nov.

I posted a full description here, but now found this forum may have been more suitable. ( sorry, noob around here ).

https://forum.freecadweb.org/viewtopic.php?f=10&t=32473

Bottom line is it can't find boost_python, which is in the same path as the other boost stuff:

Code: Select all

 Boost version: 1.66.0

  Boost include path: /usr/include

  Could not find the following Boost libraries:

          boost_python

Thanks to those who are more familiar in untangling the Gordian cMake knot.

[wmayer]

Bottom line is it can't find boost_python, which is in the same path as the other boost stuff:

With recent boost versions the component name of boost_python has changed and now also requires the Python version number. So, the component now is called e.g. boost_python27

[PrzemoF]

It's boost-python2 or boost-python27? I use boost-python2 and boost-python3 like here [1].

[1] https://github.com/FreeCAD/FreeCAD/blob ... d.spec#L33

[hobbes1069]

For Fedora 29 and up it is boost-python2-devel

[freman]

Thanks for the help.

I had wondered about a name change , I added the following packages and it got past the boost_python problem and built to 77% :

dnf install boost-python3 boost-python2 boost-python3-devel boost-python2-devel \
python3-matplotlib python-pivy python-pyside python-pyside-devel smesh smesh-devel

Code: Select all

-- Checking for module 'Coin'
--   Found Coin, version 3.1.3
-- Could NOT find Spnav (missing: SPNAV_LIBRARY SPNAV_INCLUDE_DIR) 
-- Using default python: -python2.7

.....

Code: Select all

[ 77%] Building CXX object src/Mod/Fem/App/CMakeFiles/Fem.dir/AppFemPy.cpp.o
/svn/FreeCAD-master/src/Mod/Fem/App/AppFemPy.cpp: In member function ‘Py::Object Fem::Module::insert(const Py::Tuple&)’:
/svn/FreeCAD-master/src/Mod/Fem/App/AppFemPy.cpp:201:23: error: ‘Base::Exception::Exception(const Base::Exception&)’ is protected within this context
                 throw e;
                       ^
In file included from /svn/FreeCAD-master/src/Base/PyObjectBase.h:53,
                 from /svn/FreeCAD-master/src/Base/VectorPy.h:7,
                 from /svn/FreeCAD-master/src/Mod/Fem/App/AppFemPy.cpp:35:
/svn/FreeCAD-master/src/Base/Exception.h:128:3: note: declared protected here
   Exception(const Exception &inst);
   ^~~~~~~~~
make[2]: *** [src/Mod/Fem/App/CMakeFiles/Fem.dir/build.make:536: src/Mod/Fem/App/CMakeFiles/Fem.dir/AppFemPy.cpp.o] Error 1

Is that compiler differences again?

thx.

[hobbes1069]

Could be... Might be best to start a new thread though, technically we're on gcc 8.2.1...

Thanks,
Richard

[PrzemoF]

Can you post results of 'git show HEAD'? I think I saw that error a few days ago and it had nothing to do with compiler.

[freman]

I installed from zip, not git. Should I just get a fresh copy?

[PrzemoF]

I think so. I found the error in COPR builds [1]. The link will be valid for a limited time, so the error for future generations

Code: Select all

[ 95%] Building CXX object src/Mod/Fem/App/CMakeFiles/Fem.dir/FemMeshPyImp.cpp.o
cd /builddir/build/BUILD/FreeCAD-master/build/src/Mod/Fem/App && /usr/bin/c++  -DFC_USE_VTK -DFem_EXPORTS -DHAVE_CONFIG_H -DHAVE_LIMITS_H -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/builddir/build/BUILD/FreeCAD-master/build -isystem /usr/include/QtOpenGL -isystem /usr/include/QtSvg -isystem /usr/include/QtUiTools -isystem /usr/include/QtWebKit -isystem /usr/include/QtGui -isystem /usr/include/QtXml -isystem /usr/include/QtNetwork -isystem /usr/include/QtCore -I/builddir/build/BUILD/FreeCAD-master/build/src -I/builddir/build/BUILD/FreeCAD-master/src -I/builddir/build/BUILD/FreeCAD-master/build/src/Mod/Fem/App -I/usr/lib64/oce-0.18/../../include/oce -I/usr/include/python2.7 -I/builddir/build/BUILD/FreeCAD-master/src/3rdParty/salomesmesh/inc -I/usr/include/vtk -I/usr/include/freetype2  -Wall -Wextra -Wno-write-strings -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -std=c++11 -D_OCC64 -Wno-overloaded-virtual -fPIC   -o CMakeFiles/Fem.dir/FemMeshPyImp.cpp.o -c /builddir/build/BUILD/FreeCAD-master/src/Mod/Fem/App/FemMeshPyImp.cpp
/builddir/build/BUILD/FreeCAD-master/src/Mod/Fem/App/AppFemPy.cpp: In member function 'Py::Object Fem::Module::insert(const Py::Tuple&)':
/builddir/build/BUILD/FreeCAD-master/src/Mod/Fem/App/AppFemPy.cpp:201:23: error: 'Base::Exception::Exception(const Base::Exception&)' is protected within this context
                 throw e;
                       ^
In file included from /builddir/build/BUILD/FreeCAD-master/src/Base/PyObjectBase.h:53:0,
                 from /builddir/build/BUILD/FreeCAD-master/build/src/Base/VectorPy.h:7,
                 from /builddir/build/BUILD/FreeCAD-master/src/Mod/Fem/App/AppFemPy.cpp:35:
/builddir/build/BUILD/FreeCAD-master/src/Base/Exception.h:128:3: note: declared protected here
   Exception(const Exception &inst);
   ^~~~~~~~~
make[2]: *** [src/Mod/Fem/App/CMakeFiles/Fem.dir/build.make:539: src/Mod/Fem/App/CMakeFiles/Fem.dir/AppFemPy.cpp.o] Error 1
[..]

[1] https://copr-be.cloud.fedoraproject.org ... r-live.log