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From: Ricky Huang <rhuang.work@gmail.com>
Subject: Boost Filesystem fails with FreeBSD 10, clang, and cmake
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Date: Thu, 19 Jun 2014 18:18:36 -0700
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Hello all,

I am currently migrating to a FreeBSD 10 system which comes default with =
clang language.  I was able to compile Boost just fine.  But when I =
include filesysstem.hpp to it, I get the following error message:=20

> Linking CXX executable boost_clang_test
> /usr/bin/ld: : invalid DSO for symbol =
`_ZN5boost6system15system_categoryEv' definition
> /usr/local/lib/libboost_system.so.1.55.0: could not read symbols: Bad =
value
> CC: error: linker command failed with exit code 1 (use -v to see =
invocation)
> *** Error code 1
>=20
> Stop.

I am using cmake as my build system, could it be possible that I need to =
adjust my cmake variables?  I am not sure if I've came to correct forum =
or should this be on Boost, clang, CMake forum(s)?  Please let me know =
if I am at the wrong place=85


The minimum amount of code to induce the problem are the following 2 =
files:

CMakeLists.txt:

cmake_minimum_required(VERSION 2.8)

# Find and include Boost libraries
find_package(Boost 1.55 COMPONENTS filesystem REQUIRED)
include_directories(${Boost_INCLUDE_DIR})
set(LIBS ${LIBS} ${Boost_LIBRARIES})

set(BOOST_CLANG_TEST_SOURCES ${SOURCES} main.cpp)

add_executable(boost_clang_test ${BOOST_CLANG_TEST_SOURCES})
target_link_libraries(boost_clang_test ${LIBS})


main.cpp:

#include <stdio.h>
#include <iostream>
#include <sstream>
#include <string>
#include <boost/filesystem.hpp>

using namespace std;
using namespace boost::filesystem;

const char *progname;

int main(int argc, char **argv){
  return 0;
}


Thanks in advance.