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I am trying to build the lQGLViewer in order to compile CGAL demos. I am following primarily the steps here and

I have installed qt 5.6.0. as well as the dependencies freeglut3 freeglut3-dev binutils-gold g++ libglew-dev mesa-common-dev build-essential libeigen3-dev libboost-all-dev libmpfr-dev libgmp-dev libtbb-dev zlib1g-dev

However, when I try to build the lQGLViewer with QT Creator [3.6.1] I receive the error:

cannot find -lQGLViwer-qt5

The same error is with both versions 2.6.4 and 2.7.1 of lQGLViewer

The entire output is available here

I am using Ubuntu 16.04.3 LTS

Is this due to the QT version I have installed?

Dharman
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Jesse RJ
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    Does't ubuntu provide a libqglviewer-dev package? `apt show libcgal-demo` may have relevant suggestions in "Suggests:". – Marc Glisse Jul 17 '18 at 12:19

3 Answers3

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You'd rather follow those instructions for libQGLViewer : http://libqglviewer.com/compilation.html You can also try setting NO_QT_VERSION_SUFFIX to TRUE And if you really can't install it, CGAL demos don't need libQGLViewer since 4.12.

mgimeno
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  • Indeed only a couple of the CGAL demos require libQGLViewer I tried also with the instructions from libQGLViewer.com however still had issues. However it turns out libqglviewer-dev can be installed from the repositories – Jesse RJ Jul 18 '18 at 11:17
  • The 3D demos needed libQGLViewer before 4.13. Since then, QGLViewer has been forked and integrated. It is 4.13, which is still in beta, not 4.12, my bad. – mgimeno Jul 18 '18 at 14:50
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I was able to install libqglviewer-dev from the ubuntu repositories. This allowed me to compile some of the 3d demos from CGAL

Jesse RJ
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I don't think xenial supports qt5 package. However, this site gives you access to all available versions.

https://packages.ubuntu.com/search?keywords=qglviewer

For installing libqglviewer-dev:

sudo apt-get install -y libqglviewer-dev
Rishabh Bahuguna
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