CODEWITHSUNDEEP
c++linuxboost
Mostafa Talebi
Mostafa Talebi

Reputation: 9183

Linking Boost Libraries in Linux Cent OS 7.0

My IDE is Clion, but I think it doesn't matter since it uses CMakeLists.txt.

Here is my main.cpp in which I include boost filesystem.hpp:

#include <iostream>
#include <boost/filesystem.hpp>

using namespace std;

int main() {
    cout << "Hello, World!" << endl;
    return 0;
}

Here is my CMakeLists.txt:

cmake_minimum_required(VERSION 3.2)
project(AsioFirst)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

include_directories("/usr/local/src/boost_1_60_0/boost_1_60_0/")

link_directories("/usr/local/src/boost_1_60_0/boost_1_60_0/stage/lib")

set(SOURCE_FILES main.cpp)
add_executable(AsioFirst ${SOURCE_FILES})

But when I run that (using arguments -lboost_system -lboost_filesystem), I get the following error which is probably a linking error:

boost::system::generic_category()

Directories are double checked, and they are correct.

Upvotes: 0

Views: 88

Answers (2)

rettichschnidi
rettichschnidi

Reputation: 914

Do not hardcode your dependencies/library paths. Better use find_package command to find Boosts include directories and libraries:

cmake_minimum_required(VERSION 3.2)
project(AsioFirst)

#Add a hint about your boost copy
set(BOOST_ROOT "/usr/local/src/boost_1_60_0/boost_1_60_0/")
find_package(Boost REQUIRED COMPONENTS filesystem system)

set(SOURCE_FILES main.cpp)
add_executable(AsioFirst ${SOURCE_FILES})

#More portable than setting CMAKE_CXX_FLAGS
set_property(TARGET AsioFirst PROPERTY CXX_STANDARD 11)
target_include_directories(AsioFirst PRIVATE ${Boost_INCLUDE_DIRS})
target_link_libraries(AsioFirst PRIVATE ${Boost_LIBRARIES})

Upvotes: 2

Mostafa Talebi
Mostafa Talebi

Reputation: 9183

I post this for future visitors: The solution was that I should have added the exact link to the libraries used:

link_libraries("/usr/local/src/boost_1_60_0/boost_1_60_0/stage/lib/libboost_system.so")
link_libraries("/usr/local/src/boost_1_60_0/boost_1_60_0/stage/lib/libboost_filesystem.so")

It seems the arguments lboost_system -lboost_filesystem did not resolve the linking.

Upvotes: -1

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