[CMake] cmake: could NOT find Boost

[Philip Lowman]

Usually you can get away with deleting just the cached variables that a find
module create (i.e. ZLIB_LIBRARY, etc.).  Boost is one of the few modules
where this doesn't always work because it creates internal cached variables
that don't show up in the cache editor.

On Wed, May 5, 2010 at 9:57 AM, Michael Hertling <mhertling at online.de>wrote:

> On 05/04/2010 07:19 PM, Mike Ladwig wrote:
> > The "clean build tree" seems to have been the problem.  Looks as if I
> needed
> > to start clean every time I tried a new configuration approach.  Much
> > thanks!
>
> Typically, if FIND_PACKAGE() succeeds in locating a package the results
> are cached, and if you reconfigure later FIND_PACKAGE() usually doesn't
> search again, but reuses the previously found results from the cache.
> Therefore, you must ensure that FIND_PACKAGE() is lead to the desired
> package right at the first time. If this package is missed you should
> actually restart the configuration from within a clean directory, i.e.
> without a cache. In general, if you have installed multiple versions
> of the same package be particularly careful w.r.t. which of them is
> going to be found by FIND_PACKAGE().
>
> Regards,
>
> Michael
>
> >
> > On Tue, May 4, 2010 at 1:01 PM, S Roderick <kiwi.net at mac.com> wrote:
> >
> >> On May 4, 2010, at 12:41 , Mike Ladwig wrote:
> >>
> >>> Hi.
> >>>
> >>> I'm having a problem compiling scantailor on CentOS 5.4.  The version
> of
> >> cmake that comes with CentOS was too old, so I downloaded the current
> cmake
> >> binary, which seems to be working well.
> >>>
> >>> The problem is that the CentOS version of boost is also out-of-date, so
> I
> >> needed to download and build that, which I did successfully.  I
> installed
> >> the new boost (1.42) in /usr/local and have been unable to get cmake to
> >> recognize it.
> >>>
> >>> I have tried -DBOOST_ROOT=/usr/local/ -DBOOSTROOT=/usr/local/
> >> -DBOOST_INCLUDEDIR=/usr/local/include/
> -DBOOST_LIBRARYDIR=/usr/local/lib/
> >> -DBoost_ADDITIONALVERSIONS="1.42.0" and many variations on these.
> >>>
> >>> Am I missing something, or is cmake just unable to find boost anywhere
> >> other than default locations?
> >>
> >>
> >> Have you tried (in a clean build tree)
> >>
> >> export CMAKE_PREFIX_PATH=/usr/local
> >> cmake ...
> >>
> >> The above works with MacPorts installed boost v1.42 in /opt/local for
> Mac
> >> OS X.
> >> Stephen
> >>
> >
> >
> >
> > _______________________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
> >
> > Please keep messages on-topic and check the CMake FAQ at:
> http://www.cmake.org/Wiki/CMake_FAQ
> >
> > Follow this link to subscribe/unsubscribe:
> > http://www.cmake.org/mailman/listinfo/cmake
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the CMake FAQ at:
> http://www.cmake.org/Wiki/CMake_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.cmake.org/mailman/listinfo/cmake
>



-- 
Philip Lowman
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.cmake.org/pipermail/cmake/attachments/20100505/652f86ed/attachment.htm>