[CMake] cmake: could NOT find Boost

[Michael Hertling]

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 The problem is that the CentOS version of boost is also out-of-date, so I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
>>
> 
> 
> 
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