Does it work if you define -DOPENBABEL2_INCLUDE_DIR and
-DOPENBABEL2_LIBRARIES directly?

I note that very few of the Find modules that come with CMake actually
use this variable. It's usually handled indirectly by pkgconfig via
-DPKG_CONFIG_USE_CMAKE_PREFIX_PATH=TRUE. I haven't tested whether this
fixes it for you, but I don't think it's a bug at our end, or a
feature we will implement.

- Noel

On 7 June 2017 at 09:22, Davide Olianas <dav...@davideolianas.com> wrote:
> Hello,
>
> the openbabel version shipped with my distribution (ubuntu 16.04) is quite
> old; I’d like to link my programs to the most recent one, which I installed
> in ~/opt using the option CMAKE_INSTALL_PREFIX=~/opt.
>
> Sadly, the environment variable CMAKE_PREFIX_PATH doesn’t appear to be used
> by FindOpenBabel2.cmake. I copied this module because OpenBabel can’t be
> found by default (is this a packaging problem of the distribution? If not,
> could it be possible to add FindOpenBabel2.cmake to OpenBabel source such
> that package maintainers can add the module?)
>
> You can clone this repo for a minimal (not) working example. If you have
> vagrant installed, just run vagrant up to set up a clean virtual machine. If
> you don’t use vagrant, you can look bootstrap.sh for the commands to
> reproduce the problem.
>
> Thanks for any help,
> Davide
>
>
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