Hello all~
I'm going to follow up on my email from last week with more information. I
don't believe that find_package( Boost ) is behaving properly in my case, and I
need help with either a proper solution or a workaround.
I'm using Cmake 2.8.2, on a 64bit Ubuntu linux host, trying to compile a 32bit
package with boost.
I have manually downloaded and compiled boost 1.44 into my home directory,
~/sdk/boost_1_44_0. The system also has boost 1.40 installed using a package
manager into /usr/lib.
I manually invoke cmake with this command line:
~/bin/cmake-2.8.2-Linux-i386/bin/cmake -G "Unix Makefiles" -D
BOOST_ROOT=~/sdk/boost_1_44_0 -D BOOST_LIBRARYDIR=~/sdk/boost_1_44_0/stage/lib
-D ATISTREAMSDKROOT=/usr/src/ati/ati-stream-sdk-v2.2-lnx64 -D BUILD64=OFF -D
CMAKE_BUILD_TYPE=Debug ../../code
Notice that I explicitly set BOOST_ROOT and BOOST_LIBRARYDIR, and the debug
output seems to confirm my settings.
This is my output when I run 'make VERBOSE=1':
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:373
] Boost not in cache
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:376
] _boost_TEST_VERSIONS =
1.41.0;1.41;1.40.0;1.40;1.39.0;1.39;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
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:378
] Boost_USE_MULTITHREADED = ON
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:380
] Boost_USE_STATIC_LIBS = ON
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:439
] Declared as CMake or Environmental Variables:
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:441
] BOOST_ROOT = /home/kknox/sdk/boost_1_44_0
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:443
] BOOST_INCLUDEDIR =
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:445
] BOOST_LIBRARYDIR = /home/kknox/sdk/boost_1_44_0/stage/lib
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:447
] _boost_TEST_VERSIONS =
1.41.0;1.41;1.40.0;1.40;1.39.0;1.39;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
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:496
] Include debugging info:
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:498
] _boost_INCLUDE_SEARCH_DIRS =
/home/kknox/sdk/boost_1_44_0/include;/home/kknox/sdk/boost_1_44_0;C:/boost/include;C:/boost;/boost/include;/boost;/sw/local/include
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:500
] _boost_PATH_SUFFIXES =
boost-1_41_0;boost-1_41;boost-1_40_0;boost-1_40;boost-1_39_0;boost-1_39;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
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:524
] location of version.hpp: /home/kknox/sdk/boost_1_44_0/boost/version.hpp
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:543
] version.hpp reveals boost 1.44.0
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:634
] guessed _boost_COMPILER = -gcc44
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:644
] _boost_MULTITHREADED = -mt
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:661
] _boost_STATIC_TAG =
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:663
] _boost_ABI_TAG = d
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:696
] _boost_LIBRARIES_SEARCH_DIRS =
/home/kknox/sdk/boost_1_44_0/stage/lib;/home/kknox/sdk/boost_1_44_0/lib;/home/kknox/sdk/boost_1_44_0/stage/lib;/home/kknox/sdk/boost_1_44_0/lib;/home/kknox/sdk/boost_1_44_0/../lib;C:/boost/lib;C:/boost;/boost/boost_1_44_0/lib;/boost/boost_1_44/lib;/boost/lib;/boost;/sw/local/lib
-- [
/home/kknox/bin/cmake-2.8.2-Linux-i386/share/cmake-2.8/Modules/FindBoost.cmake:830
] Boost_FOUND = TRUE
-- Boost version: 1.44.0
-- Found the following Boost libraries:
-- program_options
At my link step, I get:
/usr/bin/c++ -m32 -g CMakeFiles/clAmd.Client.dir/clAmd.client.cpp.o
CMakeFiles/clAmd.Client.dir/clAmd.openCL.cpp.o
CMakeFiles/clAmd.Client.dir/clAmd.statisticalTimer.cpp.o
CMakeFiles/clAmd.Client.dir/stdafx.cpp.o -o clAmd.Client-0.5.1 -rdynamic
-L/usr/src/ati/ati-stream-sdk-v2.2-lnx64/lib/x86
../library/libclAmd.Runtime.so.0.5.1 -Wl,-Bstatic -lboost_program_options-mt
-Wl,-Bdynamic -lOpenCL
-Wl,-rpath,/usr/src/ati/ati-stream-sdk-v2.2-lnx64/lib/x86:/home/kknox/code/clTest/trunk/clFFT/bin/linux32/library:
/usr/bin/ld: skipping incompatible
/usr/lib/gcc/x86_64-linux-gnu/4.4.1/../../../libboost_program_options-mt.a when
searching for -lboost_program_options-mt
/usr/bin/ld: skipping incompatible /usr/lib/libboost_program_options-mt.a when
searching for -lboost_program_options-mt
/usr/bin/ld: cannot find -lboost_program_options-mt
Notice, that the link step does NOT use the paths that I specified, but instead
uses '-Wl,-Bstatic -lboost_program_options-mt', which is using the boost that
is installed in /usr/lib. This is a problem because it is the wrong bitness.
Sorry for the big mess of output text, hope it is readable. Does anybody know
what to do?
Kent
-----Original Message-----
From: Knox, Kent
Sent: Friday, October 29, 2010 4:40 PM
To: 'cmake@cmake.org'
Subject: Linking Boost on Linux on 64bit host and 32bit target
Hi all~
I have a project using Boost that should compile for both 64bit and 32bit on a
64bit host. This works fine for a 64bit target, but I can't get this to work
for a 32bit target. I've done a fair share of googling to find this answer,
but have not stumbled across anything that helps. In fact, the only flag that
I can find to distinguish between 32bit build and 64bit builds only applies to
windows with ${CMAKE_CL_64}.
In order to compile for 32bit on a 64bit host, I have a -D parameter called
BUILD64. Here is my logic to initialize this var:
if( WIN32 )
set( BUILD64 ${CMAKE_CL_64} )
else()
option( BUILD64 "Build a 64-bit product" OFF )
if( BUILD64 )
message( STATUS "64-bit build" )
endif( )
endif()
The syntax for finding boost is thus:
set( Boost_USE_MULTITHREADED ON )
set( Boost_USE_STATIC_LIBS ON )
set( Boost_DETAILED_FAILURE_MSG ON )
# set( Boost_DEBUG ON )
find_package( Boost 1.33.0 COMPONENTS program_options )
The boost find package module doesn't appear at a glance to distinguish between
64bit and 32bit builds; I don't understand how it is supposed to work. I have
a feeling that it is expected that find_library is supposed to distinguish the
path behavior, but I don't have it set up right.
When I compile and link for 32bit, I get:
Scanning dependencies of target Foo
[ 72%] Building CXX object client/CMakeFiles/Foo.dir/Foo.cpp.o
[ 81%] Building CXX object client/CMakeFiles/Foo.dir/openCL.cpp.o
[ 90%] Building CXX object client/CMakeFiles/Foo.dir/StatisticalTimer.cpp.o
[100%] Building CXX object client/CMakeFiles/Foo.dir/stdafx.cpp.o
Linking CXX executable Foo
/usr/bin/ld: warning: i386:x86-64 architecture of input file
`/usr/local/boost_1_44_0/lib64/libboost_program_options.a(cmdline.o)' is
incompatible with i386 output
/usr/bin/ld: warning: i386:x86-64 architecture of input file
`/usr/local/boost_1_44_0/lib64/libboost_program_options.a(options_description.o)'
is incompatible with i386 output
As you can see, it is looking in lib64 instead of lib. How do I change that
behavior?
Thanks for any help,
Kent
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