[IMP-users] Wrong CMake warning when building IMP 2.2.1

[Frank Thommen <>]

Dear all,

I am building IMP by using a Boost installation in a non-standard 
location.  When running cmake with "-DBOOST_ROOT=/my/boost/root", the 
configuration ends successfully but at the end a warning is issued:

----------------
CMake Warning: The variable, 'BOOST_ROOT', specified manually, was not 
used during the generation.
----------------

However I don't think this warning is true, because if I run cmake w/o 
"-DBOOST_ROOT=/my/boost/root", I run into a configuration error:

----------------
CMake Error at 
/g/software/linux/pack/cmake-2.8.4/share/cmake-2.8/Modules/FindBoost.cmake:1128 
(message):
  Unable to find the requested Boost libraries.

  Boost version: 1.33.1

  Boost include path: /usr/include

  Detected version of Boost is too old.  Requested version was 1.38 (or
  newer).

  The following Boost libraries could not be found:

          boost_system
          boost_filesystem
          boost_thread
          boost_program_options

  No Boost libraries were found.  You may need to set BOOST_LIBRARYDIR 
to the
  directory containing Boost libraries or BOOST_ROOT to the location of
  Boost.

etc. etc.
----------------

So in fact the variable BOOST_ROOT *is* used and the warning is wrong 
(or at least misleading).

This warning didn't appear when configuring IMP 2.2.0

Cheers
Frank