[CMake] FindBoost problem when cross-compiling

Mon Mar 30 02:02:30 EDT 2009

In your toolchain file, what do you have
CMAKE_FIND_ROOT_PATH_MODE_INCLUDE set to? If it is set to ONLY, then
cmake will only look in the CMAKE_FIND_ROOT_PATH for boost, which is
probably set to $QNX_TARGET. Since you most likely don't have boost in
your $QNX_TARGET directory, findBoost will fail. I set it to BOTH in my
toolchain file, although I'm not sure this is entirely a good idea.
Alternatively you can copy the boost tree into $QNX_TARGET/usr/include
or somewhere. Maybe there's a better solution I'm not aware of?

-kito

> ------------------------------
> 
> Message: 5
> Date: Mon, 30 Mar 2009 16:41:40 +1100
> From: ross hennessy <roscoh at gmail.com>
> Subject: [CMake] FindBoost problem when cross-compiling
> To: CMake at cmake.org
> Message-ID:
> 	<a88af6570903292241n5598d833ue7cd7a14add8c49b at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> I'm having a problem with FindBoost.cmake with cmake 2.6.3 under win32 when
> cross-compiling only ( I have boost version 1.38.0). I have the environment
> variable BOOST_ROOT set to the directory containing the install of boost. If
> I build my project using "default native compilers" for VS 2008 the
> FindBoost works fine. When I select "specify toolchain for crosscompiling"
> to build for QNX Momentics, the FindBoost stops working. Can somebody please
> help me out as I've spent some time to look into this and it doesn't seem to
> be an incorrect usage of FindBoost. Here is the output from cmake when I hit
> configure -
> 
> Compiling for QNX Momentics
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:322 ]
> Boost not in cache
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:325 ]
> _boost_TEST_VERSIONS =
> 1.38.0;1.38;1.37.0;1.37;1.36.1;1.36.0;1.36;1.35.1;1.35.0;1.35;1.34.1;1.34.0;1.34;1.33.1;1.33.0;1.33
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:327 ]
> Boost_USE_MULTITHREADED = TRUE
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:329 ]
> Boost_USE_STATIC_LIBS =
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:387 ]
> Declared as CMake or Environmental Variables:
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:389 ]
> BOOST_ROOT = C:/dev/libraries/boost
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:391 ]
> BOOST_INCLUDEDIR =
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:393 ]
> BOOST_LIBRARYDIR =
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:395 ]
> _boost_TEST_VERSIONS =
> 1.38.0;1.38;1.37.0;1.37;1.36.1;1.36.0;1.36;1.35.1;1.35.0;1.35;1.34.1;1.34.0;1.34;1.33.1;1.33.0;1.33
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:445 ]
> Include debugging info:
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:447 ]
> _boost_INCLUDE_SEARCH_DIRS =
> C:/dev/libraries/boost/include;C:/dev/libraries/boost;C:/boost/include;C:/boost;C:\Program
> Files/boost;/sw/local/include
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:449 ]
> _boost_PATH_SUFFIXES =
> boost-1_38_0;boost-1_38;boost-1_37_0;boost-1_37;boost-1_36_1;boost-1_36_0;boost-1_36;boost-1_35_1;boost-1_35_0;boost-1_35;boost-1_34_1;boost-1_34_0;boost-1_34;boost-1_33_1;boost-1_33_0;boost-1_33
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:580 ]
> guessed _boost_COMPILER = -gcc
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:590 ]
> _boost_MULTITHREADED = -mt
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:606 ]
> _boost_STATIC_TAG =
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:608 ]
> _boost_ABI_TAG = d
> 
> [ C:/Program Files/CMake 2.6/share/cmake-2.6/Modules/FindBoost.cmake:637 ]
> _boost_LIBRARIES_SEARCH_DIRS =
> C:/dev/libraries/boost/lib;C:/dev/libraries/boost/stage/lib;C:/boost/lib;C:/boost;C:\Program
> Files/boost/boost___/lib;C:\Program Files/boost;/sw/local/lib
> 
> CMake Error at C:/Program Files/CMake
> 2.6/share/cmake-2.6/Modules/FindBoost.cmake:846 (message):
> 
> Unable to find the requested Boost libraries.
> 
> Unable to find the Boost header files. Please set BOOST_ROOT to the root
> 
> directory containing Boost or BOOST_INCLUDEDIR to the directory containing
> 
> Boost's headers.
> 
> Call Stack (most recent call first):
> 
> CMakeLists.txt:223 (FIND_PACKAGE)
> 
> 
> The Boost_INCLUDE_DIR should be set to C:/dev/libraries/boost/boost_1_38_0
> which is what happens when I build natively instead of crosscompiling. I'm
> basically down to the one line (454) in FindBoost.cmake where it calls
> FIND_PATH for boost/config.hpp and all inputs look correct so I can't do any
> further debugging to work out what is failing. The only thing I can think of
> is that the QNX.cmake platform file is included from the toolchain file,
> which in turn includes the UnixPaths.cmake which means UNIX is set, but
> WIN32 isn't (I'm not sure how this would affect FIND_PATH though?).
> 
> Thanks, Ross
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