This is Interesting. By examining the output of git blame cc7568a73 gui/qt4/GLViewer.hpp and git log cc7568a732 I see that Vaclav has commented out this line 8 years ago when migrating from QT3 to QT4. I wonder why you need to uncomment it back in QT5.
I tried doing this, and on my linux devuan ascii/ceres it did compile, but then yade would not start, and produce this error: Welcome to Yade 2018-05-23.git-90e061d Traceback (most recent call last): File "……/yade-trunk/bin/yade-2018-05-23.git-90e061d", line 129, in <module> import yade File "……/yade-trunk/lib/x86_64-linux-gnu/yade-2018-05-23.git-90e061d/py/yade/__init__.py", line 65, in <module> import boot ImportError: ……/yade-trunk/lib/x86_64-linux-gnu/yade-2018-05-23.git-90e061d/py/yade/qt/_GLViewer.so: undefined symbol: _ZN8GLViewer8updateGLEv So there is more to investigate here before we find a solution for this. I don't know why it would work for you, to be honest, because uncommenting this line is just creating a function declaration without a function body. I mean: The error that I pasted above has a reasonable explanation, it is because the uncommented line was: virtual void updateGL(void); and not: virtual void updateGL(void) { /* function body */ }; So it did compile, but when starting yade, there was no function body to execute. Thus I don't know why it worked for you :) ** Changed in: yade Status: New => Incomplete -- You received this bug notification because you are a member of Yade developers, which is subscribed to Yade. https://bugs.launchpad.net/bugs/1735804 Title: QGLViewer updateGL() function error Status in Yade: Incomplete Bug description: Background Details: CentOS 7.4 Compiled from source All features installed and enabled (except for python GTS...could not find that one) Issue: When attempting to build Yade, this error occurs: trunk-2017.01a/gui/qt5/GLViewer.cpp:298:11: error: ‘updateGL’ was not declared in this scope updateGL(); The way I solved this was by uncommenting line 64 in: trunk-2017.01a/gui/qt5/GLViewer.hpp so that "virtual void updateGL(void);" would be visible. I am not sure if that was originally commented out for debugging or deprecation, but it inhibited the program from compiling. If the comments were intentional, how would I fix the error otherwise? Thanks, James To manage notifications about this bug go to: https://bugs.launchpad.net/yade/+bug/1735804/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~yade-dev Post to : yade-dev@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-dev More help : https://help.launchpad.net/ListHelp