CGAL users discussion list

[Amy Louise Tabb <>]

Hello, 

I'm working in Red Hat and had some similar issues related to the installed 
version of some of the libraries that CGAL needs.  I also use Ubuntu on 
another machine, and I had installed CGAL from source with no problem.

My opinion of how to fix your problem is to keep the newest version of boost 
(at least 1.44), and then skip the Synaptic package manager version of cgal 
and instead build it from source.  In the cmake dialog, you can manually 
point to the specific version of boost that you have, but when I have 
installed it on Ubuntu there was no need to alter the libraries found by 
cmake.

Then you'll have the most up to date version of boost with the most up to 
date version of cgal, the only negative being some long download and build 
times.

Best
Amy

----- Original Message -----
From: "mm" 
<>
To: 

Sent: Friday, August 19, 2011 12:49:35 PM
Subject: [cgal-discuss] libboost dependencies in Ubuntu 11.04

Hello,

I am working for a university project and part of it requires cgal. 
I'm using Ubuntu 11.04 and cgal can be installed directly through Ubuntu's
package management system, in my case using Synaptic. I install libcgal-dev
(version 3.6.1), which asks for libboost-dev and libboost1.42-dev as
dependencies. Now, you must know that the project I'm working on also
requires a boost version newer than 1.42, at least 1.44. So, when I install
libcgal-dev and its dependencies, it gives me the error:
E: /var/cache/apt/archives/libboost1.42-dev_1.42.0-4ubuntu2_i386.deb: trying
to overwrite '/usr/include/boost/exception.hpp', which is also in package
libboost-exception-dev 110812-natty
I can then use cgal, as it is kind of installed, but Ubuntu will continue to
say that there is a broken package and I must fix it before I can update or
install any other package. So, I always need to uninstall cgal, reinstall
libboost-dev (which resolves the actual "broken dependencies" error), do my
updates/installs and then reinstall cgal, resulting in a broken dependency,
again.

Somebody from #ubuntu on freenode recommended to write to the list, as this
might be a bug. Can it be, for example, that libcgal-dev in version 3.6.1
requires libboost-dev's version to be equal to 1.42 and not equal or newer
than 1.42?

Thanks for your attention and have a nice day,
Manuel

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