[CMake] Problem with FindBoost

[Christopher Harvey]

Wilfried Holzke wrote:
> Hi,
>
> I try to find "Boost" within a CMakeList.txt file.
>
> I got the following from the documentation of CMake 2.6:
>
> *****
> SET(Boost_USE_STATIC_LIBS OFF)
> SET(Boost_USE_MULTITHREAD OFF)
> FIND_PACKAGE(Boost 1.34.1 COMPONENTS multi_array)
>
> if (NOT Boost_FOUND)
>    message(FATAL_ERROR "Boost not found!")
> ENDIF (NOT Boost_FOUND)
> *****
>
> But neither version nor components seems to be recognized or results in
> an error.
>
> If I set version to 1.44 boost is found anyway. Setting "COMPONENTS
> multi_array" results in an error, but "multi_array" is installed.
>
>
> Is there something wrong how I use FIND_PACKAGE(Boost ...)?
>
> regards
>
>   W. Holzke
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>
>   
This seems like a bug to me. But I could be wrong. Here is my (working) 
boost line.
FIND_PACKAGE(Boost 1.34.1 REQUIRED COMPONENTS signals regex thread)
Adding the REQUIRED keyword removes the need for the Boost_FOUND test 
you have.