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POICU problems compiling with Boost 1.50 locale in Linux
 

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  1. POICU problems compiling with Boost 1.50 locale in Linux
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    <p>So, I am having trouble compiling my project that is using boost 1.50.0 libraries, more specifically the boost 'locale' library. I am receiving this error when I compile:</p> <pre><code>(.text._ZN5boost6locale8impl_icu10num_formatIcED2Ev[_ZN5boost6locale8impl_icu10num_formatIcED5Ev]+0x20):-1: error: undefined reference to `icu_48::Locale::~Locale()' </code></pre> <p>My immediate assumption was that I was not linking the libicu-dev libraries in the project correctly, and added the library to my cmake files (FindICU.cmake).</p> <p><strong>FindICU.cmake:</strong></p> <pre><code># Try to find the ICU library # ICU_FOUND - system has ICU # ICU_INCLUDE_DIR - the ICU include directory # ICU_LIBRARY - the ICU library FIND_PATH(ICU_INCLUDE_DIR NAMES utf8.h utypes.h PATH_SUFFIXES unicode) SET(_ICUI18N_STATIC_LIBS libicui18n.a) SET(_ICUI18N_SHARED_LIBS libicui18n.dll.a icui18n) SET(_ICUUC_STATIC_LIBS libicuuc.a) SET(_ICUUC_SHARED_LIBS libicuuc.dll.a icuuc) IF(USE_STATIC_LIBS) FIND_LIBRARY(ICUI18N_LIBRARY NAMES ${_ICUI18N_STATIC_LIBS} ${_ICUI18N_SHARED_LIBS}) FIND_LIBRARY(ICUUC_LIBRARY NAMES ${_ICUUC_STATIC_LIBS} ${_ICUUC_SHARED_LIBS}) ELSE() FIND_LIBRARY(ICUI18N_LIBRARY NAMES ${_ICUI18N_SHARED_LIBS} ${_ICUI18N_STATIC_LIBS}) FIND_LIBRARY(ICUUC_LIBRARY NAMES ${_ICUUC_SHARED_LIBS} ${_ICUUC_STATIC_LIBS}) ENDIF() SET(ICU_LIBRARIES ${ICUI18N_LIBRARY} ${ICUUC_LIBRARY}) INCLUDE(FindPackageHandleStandardArgs) FIND_PACKAGE_HANDLE_STANDARD_ARGS(ICU DEFAULT_MSG ICU_LIBRARIES ICU_INCLUDE_DIR) MARK_AS_ADVANCED(ICU_LIBRARIES ICU_INCLUDE_DIR) </code></pre> <p>and made my project search for the boost libs here like this:</p> <pre><code># find boost set(REQUIRED_BOOST_COMPONENTS locale system filesystem regex thread) if(WIN32) set(Boost_THREADAPI win32) set(framework_DEFINITIONS ${framework_DEFINITIONS} -DBOOST_THREAD_USE_LIB) # fix boost thread linkage set(REQUIRED_BOOST_COMPONENTS ${REQUIRED_BOOST_COMPONENTS} chrono) # mingw32 does not have std::thread else() find_package(ICU) set(Boost_LIBRARIES ${Boost_LIBRARIES} ${ICU_LIBRARIES}) endif() set(Boost_USE_MULTITHREADED ON) set(Boost_USE_STATIC_LIBS ${USE_STATIC_LIBS}) find_package(Boost 1.50.0 COMPONENTS ${REQUIRED_BOOST_COMPONENTS} REQUIRED) </code></pre> <p>and it finds it no problem</p> <pre><code>-- Found ICU: /usr/lib/libicui18n.a;/usr/lib/libicuuc.a -- Boost version: 1.50.0 -- Found the following Boost libraries: -- locale -- system -- filesystem -- regex -- thread </code></pre> <p>But I am still getting this error when I try to compile. I am running Ubuntu 12.04 getting my boost libraries from <a href="https://launchpad.net/~28msec/+archive/boost" rel="nofollow">https://launchpad.net/~28msec/+archive/boost</a> repository as 12.04 does offer a package for boost 1.50 libraries. I am using standard package for libicu-dev (4.6.x).</p> <p>EDIT: I also compiled my own 1.50.0 boost libs configured with and without ICU (both didn't work) I also compiled my own ICU libs and still same error... I'm completely stumped on this.</p> <p>Perhaps someone will be able to help me figure out what is going on. Any help is appreciated! Thanks, Ben.</p>
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    1. COThe error seems to imply that the boost libraries are built using icu 4.8 and you say you are using 4.6. Ubuntu 12.04 seems to have [version 4.8](http://packages.ubuntu.com/search?keywords=libicu&searchon=names&suite=precise&section=all) available so if you really are using 4.6 you should update.
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    2. COHey, thanks for the reply. I tried this also, and it didn't resolve the issue unfortunately. Unless I did something wrong, I will give it another shot soon to make sure.
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