[CMake] FindBoost problem

[Nico Schlömer]

> the "mt" infix anymore, e.g. "/usr/local/lib/libboost_date_time.so". A
> solution has been to unset Boost_USE_MULTITHREADED before invoking the
> FIND_PACKAGE(Boost ...), e.g. "cmake -DBoost_USE_MULTITHREADED=0 ..".

That does the trick!
Thanks a lot.

--Nico



On Wed, May 26, 2010 at 9:50 PM, Michael Hertling <mhertling at online.de> wrote:
> On 05/26/2010 07:52 PM, Nico Schlömer wrote:
>> Hi all,
>>
>> I'd like to use CMake for an application that I'm developing on an
>> Ubuntu machine which needs to link against Boost, i.e., a
>> custom-compiled installation at /opt/boost/1.43.0/.
>>
>> I compiled and installed CMake 2.8.1, FindBoost.cmake comes in handy.
>> Ubuntu ships with its own Boost development package (1.40.0) which I
>> cannot remove because it's used by other packages. By default, CMake
>> finds the stock-Boost (I guess b/c it sits in those default folders),
>> so I call cmake with
>>
>>   cmake -DBOOST_ROOT:PATH=/opt/boost/1.43.0/ /path/to/source/
>>
>> Boost is found, and the variables are set in CMakeCache.txt, e.g.,
>>
>>     Boost_INCLUDE_DIR:PATH=/opt/boost/1.43.0/include
>>
>> I however also notice that the actual libraries are *not* set correctly, as
>>
>>     Boost_FILESYSTEM_LIBRARY:FILEPATH=/usr/lib/libboost_filesystem-mt.so
>>
>> This makes the build fail. Setting BOOST_LIBRARYDIR does not help.
>
> The same problem showed up here, and I have tracked it down to the fact
> that FindBoost.cmake, as default, searches for Boost libraries with the
> multithread mark in name, e.g. "/usr/lib/libboost_date_time-mt.so" from
> the distribution, while my custom-compiled 1.43.0 libraries do not have
> the "mt" infix anymore, e.g. "/usr/local/lib/libboost_date_time.so". A
> solution has been to unset Boost_USE_MULTITHREADED before invoking the
> FIND_PACKAGE(Boost ...), e.g. "cmake -DBoost_USE_MULTITHREADED=0 ..".
>
> 'hope that helps.
>
> Regards,
>
> Michael
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