I try to use the SimpleAmqpClient library to build my multi-agent environment for simulation. I have installed the library after cloning its sources, making them:
make
sudo make install
After that, I created the
main.cpp
file:
#include <iostream>
#include <SimpleAmqpClient/SimpleAmqpClient.h>
using namespace std;
int main() {
cout << "Hello, World!" << endl;
return 0;
}
just to try it out.
Also, I have the following
CMakeLists.txt:
cmake_minimum_required(VERSION 3.3)
project(SampleProject)
include_directories('/usr/local/include/')
find_package(libSimpleAmqpClient REQUIRED)
include_directories(${libSimpleAmqpClient++_INCLUDE_DIRS})
set(LIBS ${LIBS} ${libSimpleAmqpClient++_LIBRARIES})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.cpp)
add_executable(SampleProject ${SOURCE_FILES})
So, the question is: how to find and link this library.
You need to include the line
target_link_libraries(SampleProject ${LIBS})
after the line
add_executable(SampleProject ${SOURCE_FILES})
This imbues the target SampleProject with properties that tell the generator to generate a linker command which reference the libraries you need.
I have found the solution, thanks to #RichardHodges. The solution was to use
find_library() instead of find_package().
THe final file is the following:
CMakeLists.txt
cmake_minimum_required(VERSION 3.3)
project(SampleProject)
include_directories('/usr/local/include/')
find_library(libSimpleAmqpClient REQUIRED)
include_directories(${libSimpleAmqpClient++_INCLUDE_DIRS})
set(LIBS ${LIBS} ${libSimpleAmqpClient++_LIBRARIES})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.cpp)
add_executable(SampleProject ${SOURCE_FILES})
Related
I have downloaded the HDFql library and put the whole lot in /usr/local/ in my linux system. I now wish to use this library in a ROS application, so I have tried to link it in my CMakeList, which looks as following:
cmake_minimum_required(VERSION 3.2)
project(data_generator)
add_compile_options(-std=c++11)
set(CMAKE_BUILD_TYPE Release) # Release, RelWithDebInfo
set(CMAKE_CXX_FLAGS "-std=c++11 -pthread ${CMAKE_CXX_FLAGS}")
find_package(catkin_simple REQUIRED)
catkin_simple(ALL_DEPS_REQUIRED)
find_package(OpenCV REQUIRED)
include_directories(${OpenCV_INCLUDE_DIRS})
set(HDFQL_ROOT "/usr/local/hdfql-2.1.0")
include_directories(${HDFQL_ROOT}/include)
find_library(HDFQL_LIB HDFql)
if (HDFQL_LIB)
message("Library(HDFQL_LIB) found in ${HDFQL_LIB}")
else()
message(FATAL_ERROR "Library (HDFQL_LIB) not found")
endif()
cs_add_executable(
${PROJECT_NAME}
src/main.cpp
src/data_create.cpp
src/event_definitions.cpp
)
target_include_directories(${PROJECT_NAME}
PUBLIC "${HDFQL_ROOT}/include"
)
target_link_libraries(${PROJECT_NAME}
${OpenCV_LIBRARIES}
${HDFQL_LIB}
)
# CMake Indexing
FILE(GLOB_RECURSE LibFiles "include/*")
add_custom_target(headers SOURCES ${LibFiles})
cs_install()
cs_export()
When I build this, it works fine and outputs the message:
Library(HDFQL_LIB) found in /usr/local/hdfql-2.1.0/lib/libHDFql.so
with the following in my main.cpp file:
#include <HDFql.hpp>
....
std::cout <<"HDFql version: " << HDFql::Version << std::endl;
the output is: HDFql version: 2.1.0.
However, as soon as I try to actually use functions of the library - for example:
#include <HDFql.hpp>
....
std::cout <<"HDFql version: " << HDFql::Version << std::endl;
HDFql::execute("CREATE FILE /home/user/test.h5");
I get the error:
main.cpp:(.text+0x1858): undefined reference to `HDFql::execute(char const*)'
This suggests to me that while CMake has no issue with the includes, it is having trouble linking the actual library (ie including the libHDFql.a/libHDFql.so files). Can anyone tell me what I'm doing wrong here?
Many thanks!
The problem was that I needed to include the library /usr/local/hdfql-2.1.0/wrapper/cpp/libHDFql.so, where I was using /usr/local/hdfql-2.1.0/lib/libHDFql.so. It's pretty maddening, since the reference manual doesn't make any mention of this and I spent way too long figuring this out. Ohwell, I hope this helps anyone else with this problem.
For reference, here is a minimal catkin-style CMakeLists that will work:
cmake_minimum_required(VERSION 3.2)
project(project_name)
add_compile_options(-std=c++11)
find_package(catkin_simple REQUIRED)
catkin_simple(ALL_DEPS_REQUIRED)
set(HDFQL_ROOT "path/to/hdfql-2.1.0")
include_directories(${HDFQL_ROOT}/include)
set(CMAKE_BUILD_TYPE Release)
set(CMAKE_CXX_FLAGS "-std=c++11 -pthread ${CMAKE_CXX_FLAGS}")
cs_add_executable(
${PROJECT_NAME}
# your source file 1
# your source file 2
# ...
)
target_include_directories(${PROJECT_NAME}
PUBLIC "${HDFQL_ROOT}/include"
)
target_link_libraries(
${PROJECT_NAME}
${OpenCV_LIBRARIES}
)
target_link_libraries(
${PROJECT_NAME}
"${HDFQL_ROOT}/wrapper/cpp/libHDFql.so"
)
Of course the absolute paths aren't very pretty, the alternative is to add /usr/local/hdfql-2.1.0/lib to the environment variable CMAKE_PREFIX_PATH (eg export CMAKE_PREFIX_PATH="/usr/local/hdfql-2.1.0/lib:$CMAKE_PREFIX_PATH").
The program runs just fine when started from inside CLion although it is refusing to run by double clicking the .exe with this error being shown when I try to run it:
The procedure entry point _ZNKSt7__cxx1112basic_stringlcSt11char_traitslcESalcEE12find_last_ofEPKcyy could not be located in the dynamic link library C:\Users\steppers\projects\cyan\bin\libcyan_engine.dll.
It looks to me like an issue with a standard lib or something judging by the basic_string bit but I'm at a complete loss here now.
Here is my root CMakeLists.txt:
cmake_minimum_required(VERSION 3.6)
project(cyan_test)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)
add_subdirectory(engine)
include_directories(engine/include)
set(SOURCE_FILES src/main.cpp)
add_executable(cyan_test ${SOURCE_FILES})
target_link_libraries(cyan_test cyan_engine)
And the engine subdirectory's:
cmake_minimum_required(VERSION 3.6)
project(cyan_engine)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
add_subdirectory(lib/glfw-3.2.1)
include_directories(lib/glfw-3.2.1/include)
add_definitions("-fPIC")
add_subdirectory(lib/g3log-1.2)
include_directories(lib/g3log-1.2/src)
include_directories(include)
set(SOURCE_FILES <src files here>)
add_library(cyan_engine SHARED ${SOURCE_FILES})
target_link_libraries(cyan_engine glfw g3logger)
find_package(OpenGL REQUIRED)
include_directories(${OPENGL_INCLUDE_DIR})
target_link_libraries(cyan_engine ${OPENGL_gl_LIBRARY})
Any help would be greatly appreciated.
I am trying to compile my game project using Clion IDE but I have a problem when porting allegro 5. I get this error:
main.cpp:2:10: fatal error: 'allegro/allegro.h' file not found
#include <allegro/allegro.h>
My CMakeLists is:
cmake_minimum_required(VERSION 3.5)
project(testAllegro)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.cpp)
add_executable(testAllegro ${SOURCE_FILES})
INCLUDE_DIRECTORIES( /usr/local/include )
LINK_DIRECTORIES( /usr/local/lib )
file(GLOB LIBRARIES "/usr/local/Cellar/allegro/5.2.1.1_1/lib/*.dylib")
message("LIBRARIES = ${LIBRARIES}")
TARGET_LINK_LIBRARIES(testAllegro ${LIBRARIES})
Just I want to ask how can I add external Library allegro to Clion?
when you install allegro using homebrew link
use this cmake to compile clion project
cmake_minimum_required(VERSION 3.5)
project(testAllegro)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.cpp)
add_executable(testAllegro ${SOURCE_FILES})
INCLUDE_DIRECTORIES( /usr/local/Cellar/allegro/5.2.1.1_1/include )
LINK_DIRECTORIES( /usr/local/Cellar/allegro/5.2.1.1_1/lib )
file(GLOB LIBRARIES "/usr/local/Cellar/allegro/5.2.1.1_1/lib/*.dylib")
message("LIBRARIES = ${LIBRARIES}")
TARGET_LINK_LIBRARIES(testAllegro ${LIBRARIES})
I am currently trying to build wxWidgets-3.1.0 on a CLion 1.3 project. I use Ubuntu 16.04 (64 bit). Basically, I edited the CMakeLists.txt file like this:
cmake_minimum_required(VERSION 3.5)
project(WxProva)
set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake_modules"
${CMAKE_MODULE_PATH})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.cpp)
add_executable(WxProva ${SOURCE_FILES})
find_package(wxWidgets)
include_directories(${wxWidgets_INCLUDE_DIRS})
target_link_libraries(WxProva ${wxWidgets_LIBRARIES})
The "External Libraries" section also shows me wxWidgets, but when it comes to write some lines on my main.cpp, everything related with the library seems to be unreachable by the compiler (it's all written in red, like an error). Anyway, if I try to compile, that's the result:
/home/federico/ClionProjects/WxProva/main.cpp:2:35: fatal error: wxWidgets-3.1.0/include: File o directory non esistente
compilation terminated.
Which is like "File or directory doesn't exists."
How can I fix this?
After some experiments here solution. You can just copy it and change some information and ready to build and run.
cmake_minimum_required(VERSION 3.7)
project(Your_Project_Name) //any name for your project
set(CMAKE_CXX_STANDARD 11)
set(wxWidgets_ROOT_DIR </usr/include/wx-3.0-unofficial>) // here I am giving where to search for wxwidgets library. it can be different for you
set(wxWidgets_CONFIGURATION mswu)
find_package(wxWidgets COMPONENTS core base REQUIRED)
include(${wxWidgets_USE_FILE})
set(SOURCE_FILES main.cpp)
add_executable(FirstC ${SOURCE_FILES})
target_link_libraries(FirstC ${wxWidgets_LIBRARIES})
For more Information read https://wiki.wxwidgets.org/CMake
Edit 1
Here you shouldn't even add some compile and link config (wx-config --cxxflags and wx-config --libs) as it is necessary in NetBeans
Here is example configuration for macOS 10.14.4 (Mojave) and CLion 2019.1
(/usr/local is folder where I installed wxWidgets)
cmake_minimum_required(VERSION 3.14)
project(wx1Test)
set(CMAKE_CXX_STANDARD 14)
set(wxWidgets_ROOT_DIR </usr/local/include/wx-3.1>)
set(wxWidgets_CONFIGURATION mswu)
find_package(wxWidgets COMPONENTS core base REQUIRED)
include(${wxWidgets_USE_FILE})
set(SOURCE_FILES main.cpp)
add_executable(wx1Test ${SOURCE_FILES})
target_link_libraries(wx1Test ${wxWidgets_LIBRARIES})
I need to use MongoDB C Drivers in a c++ project. I want to use CMake because the IDE i'm using is well integrated with it but the compiler doesn't recognize the MongoDB drivers
So, I've tried a couple more things and to provide you with a bit more information. I've made the following script:
cmake_minimum_required(VERSION 3.2)
project(sorting)
set(ENV{PKG_CONFIG_PATH} "/usr/lib64")
find_package(PkgConfig REQUIRED)
pkg_search_module(MONGO REQUIRED mongoc-1.0)
message(SEND_ERROR "A ${MONGO_FOUND}") # Error:A 1
message(SEND_ERROR "B ${MONGO_LIBRARIES}") # Error:B ssl;crypto;rt;mongoc-1.0;bson-1.0
message(SEND_ERROR "C ${MONGO_LIBRARY_DIRS}") # Error:C /usr/lib64
message(SEND_ERROR "D ${MONGO_LDFLAGS}") # Error:D -L/usr/lib64;-lssl;-lcrypto;-lrt;-lmongoc-1.0;-lbson-1.0
message(SEND_ERROR "E ${MONGO_LDFLAGS_OTHER}")# Error:E
message(SEND_ERROR "F ${MONGO_INCLUDE_DIRS}") # Error:F /usr/include/libmongoc-1.0;/usr/include/libbson-1.0
message(SEND_ERROR "G ${MONGO_CFLAGS}") # Error:G -I/usr/include/libmongoc-1.0;-I/usr/include/libbson-1.0
message(SEND_ERROR "H ${MONGO_CFLAGS_OTHER}") # Error:H
include_directories(${MONGO_LIBRARY_DIRS})
include_directories(${MONGO_INCLUDE_DIRS})
#link_directories(${MONGO_LIBRARY_DIRS})
#link_directories(${MONGO_INCLUDE_DIRS})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.cpp)
add_executable(sorting ${SOURCE_FILES})
target_link_libraries(sorting ${MONGO_LIBRARIES})
When i remove all the message() functions from my cmake file and try to build run the project whith the include_directories uncomented i get this error:
error while loading shared libraries: libmongoc-1.0.so.0: cannot open shared object file: No such file or directory
When i comment the include_directories and uncomment link_directories i get this error:
fatal error: mongoc.h: No such file or directory
#include <mongoc.h>
Also, just out of curiosity why is it that if i chage the name MONGO in pkg_search_module to something like MONGODB or MONG i get this error:
Error:None of the required 'mongoc-1.0' found
You need to tell cmake to link to the monog library, that is achieved by means of the
TARGET_LINK_LIBRARIES
command, in your specific case it would go right after the ADD_EXECUTABLE command, and exactly like
TARGET_LINK_LIBRARIES(sorting ${MONGO_DB_LIBRARIES})
Also, your PKG_SEARCH_MODULE seems to be wrong, it seems that it should be
PKG_SEARCH_MODULE(MONGO_DB REQUIRED libmongoc-1.0)
I am able to compile the mongo sample code given using
cmake_minimum_required(VERSION 2.8)
project(sorting)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.cpp)
include_directories(/usr/include/libmongoc-1.0 /usr/include/libbson-1.0)
find_library(MONGODB_LIBRARY mongoc-1.0)
find_library(BSON_LIBRARY bson-1.0)
add_executable(sorting ${SOURCE_FILES})
target_link_libraries(sorting ${MONGODB_LIBRARY} ${BSON_LIBRARY})
Can you try with this CMakeFiles.txt ?
BTW it exists a mongo driver c++ for c++ projects !
I was finally able to do it!
The environment variable LD_LIBRARY_PATH was being overwritten by my IDE (CLION). I set it in the IDE settings to point to the library dir and now everything works fine.
This was the configuration i used:
cmake_minimum_required(VERSION 3.2)
project(sorting C)
set(ENV{PKG_CONFIG_PATH} "")
find_package(PkgConfig REQUIRED)
pkg_search_module(MONGO REQUIRED mongoc)
include_directories(${MONGO_INCLUDE_DIRS})
include_directories(${MONGO_LIBRARY_DIRS})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.c)
add_executable(sorting ${SOURCE_FILES})
target_link_libraries(sorting ${MONGO_LIBRARIES} )