[Octave-bug-tracker] [bug #55735] QGLWidget not detected with Qt 4, so Qt graphics toolkit is not compiled

[John W. Eaton]

Update of bug #55735 (project octave):

                  Status:                    None => Ready For Test         

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Follow-up Comment #11:

I pushed the following changeset for stable and merged with default:

http://hg.savannah.gnu.org/hgweb/octave/rev/4af9840f9ce5

I also pushed an additional change for default so that we could also build the
default branch with Qt4 again:

http://hg.savannah.gnu.org/hgweb/octave/rev/e247ecdee41d

Works for me now with either stable or default on my Debian system when using
the --with-qt=4 configure option.

I do want to limit linking the Qt OpenGL library to the graphics library
separate from the rest of the GUI.

The first changeset above adds the missing -I options to CPPFLAGS.  It isn't
needed with Qt5, at least the way it is installed on my system, but it is with
Qt4, and I think it makes sense to use a separate variable for that anyway.


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