dolfin team mailing list archive

[Johannes Ring <johannr@xxxxxxxxx>]

On Thu, Aug 26, 2010 at 12:42 PM, Anders Logg <logg@xxxxxxxxx> wrote:
> On Thu, Aug 26, 2010 at 12:19:28PM +0200, Johannes Ring wrote:
>> On Thu, Aug 26, 2010 at 12:10 PM, Benjamin Kehlet
>> <benjamik@xxxxxxxxxxxxxxxxxxxxx> wrote:
>> > Hello!
>> >
>> > CMake currently fails to find the Boost libraries on my computer.
>> >
>> > I'm running Ubuntu Karmic and the Boost libraries are installed with
>> > apt-get.
>> >
>> > If I change the Boost_USE_MULTITHREADED option to ON in CMakeLists.txt:136
>> > it works.
>>
>> I have been looking at this since one of the buildbot slaves also has
>> this problem. However, I couldn't find a way to search for both
>> multithreaded and non-multithreaded Boost libraries using the
>> FindBoost CMake module, so I ended up setting the
>> Boost_USE_MULTITHREADED option to ON on the buildbot.
>
> Will this break on other operating systems if we make it the default?

Yes, I think that if Boost_USE_MULTITHREADED is set to ON and the -mt
libraries are not available then FindBoost will fail. When I tested
this on linux64-exp (buildbot slave) which has a really old Boost
version installed under /usr, FindBoost selected the old -mt Boost
libraries under /usr/lib instead of the local ones that BOOST_DIR
pointed to (installed via Dorsal). When Boost_MULTITHREADED was turned
OFF then FindBoost located the correct libraries under BOOST_DIR/lib.
I haven't tested this when there are no -mt Boost libraries available
though.

Johannes

> --
> Anders
>
>
>> Johannes
>>
>> > In /usr/lib/ all the the Boost libraries files have the "-mt" suffix :
>> >
>> > benjamik@SRL1185:~$ ls -l /usr/lib/libboost_program_options*
>> > [...]
>> > -rw-r--r-- 1 root root  135962 2010-04-15 05:45
>> > /usr/lib/libboost_filesystem-mt.a
>> > lrwxrwxrwx 1 root root      32 2010-08-23 23:35
>> > /usr/lib/libboost_filesystem-mt.so -> libboost_filesystem-mt.so.1.38.0
>> > -rw-r--r-- 1 root root   75632 2010-04-15 05:45
>> > /usr/lib/libboost_filesystem-mt.so.1.38.0
>> > -rw-r--r-- 1 root root  995632 2010-04-15 05:45 /usr/lib/libboost_graph-mt.a
>> > [...]
>> >
>> > Benjamin
>> >
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>>
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> --
> Anders
>