I have referred to this link and made a CMakeLists.txt with following data:
cmake_minimum_required(VERSION 2.8)
SET(TARGET integrity_scanner)
message("\nBuilding ${TARGET}")
project (${TARGET})
if (UNIX)
message(STATUS "Setting GCC flags")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3 -Wall -O0")
else()
message(STATUS "Setting MSVC flags")
#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHc-")
endif ()
include_directories ("${PROJECT_SOURCE_DIR}")
set(Boost_USE_STATIC_LIBS ON)
set(Boost_USE_MULTITHREADED ON)
set(Boost_USE_STATIC_RUNTIME OFF)
set(BOOST_ROOT C:/boost_1_55_0_dyn)
find_package(Boost 1.55.0 COMPONENTS thread)
SET(SOURCE
IntegrityScanner.cpp
)
SET(HEADERS
IntegrityScanner.h ../BaseApplication.hpp
)
if(Boost_FOUND)
add_definitions(-DDLL_EXPORTS)
add_definitions(-DBOOST_ALL_DYN_LINK)
include_directories("..\\..\\..\\ext_library\\zmq\\zeromq-4.0.3\\include")
include_directories("..\\..\\..\\ext_library\\zmq\\czmq\\czmq-2.1.0\\include")
link_directories("..\\..\\..\\ext_library\\zmq\\zeromq-4.0.3\\lib\\Win32\\Debug")
link_directories("..\\..\\..\\ext_library\\zmq\\czmq\\czmq-2.1.0\\lib\\Win32\\DebugDLL")
include_directories(${Boost_INCLUDE_DIRS})
LINK_DIRECTORIES(${Boost_LIBRARY_DIRS})
add_library(${TARGET} SHARED ${SOURCE} ${HEADERS})
target_link_libraries(${TARGET} ${Boost_LIBRARIES} czmq libzmq)
else()
message(STATUS "Boost_FOUND False")
endif()
Even though I have set BOOST_ROOT , it fails and gives the Boost Found False Message. What am I doing wrong here?
Edit: I have found that setting Boost_USE_STATIC_LIBS to OFF is resolving the issue. But I have to have it ON. What could be wrong here?
Your directory structure needs to look like this:
c:/boost/boost_1_55_0
and BOOST_ROOT is an environment variable set to c:/boost
I have found the reason why this code is not working. As I am giving value ON to Boost_USE_STATIC_LIBS, the result is that find_package will look for libboost_thread-vc100-mt-1_55 , which it will not find because building boost will give shared libraries as stated in this link. Refer to pic below:
Related
I have a CMake project that works pretty good in Linux, but it doesn't under Windows.
The first issue comes by final linking:
[100%] Linking CXX shared library libProjlib.dll
CMakeFiles\Projlib.dir/objects.a(configserver.cpp.obj): In function `ConfigServer::findAdapter(unsigned long*)':
C:/Users/jose/Documents/git-Projects/Proj/Projlib/configserver.cpp:859: undefined reference to `GetIpAddrTable'
Error 1
findAdapter belongs to C:\Qt\Tools\mingw810_64\x86_64-w64-mingw32\include\iphlpapi.h, but doesn't link automatic
My project is missconfigured, I think. I would like to select the MinGW compiler, automatic through CMakeLists.txt (For now, I configure the compiler means cmake-gui.exe ..), and naturally fix the issue, but I don't know how. (Google didn't gave me a solution)
Please, any help or suggestion, link.. etc. will be wellcomed.
Here is my CMakeLists.txt
cmake_minimum_required(VERSION 3.13)
set(CMAKE_PROJECT_NAME "testProject")
project(${CMAKE_PROJECT_NAME})
set(CMAKE_BUILD_TYPE Debug)
if("Windows" STREQUAL "${CMAKE_SYSTEM_NAME}")
message(STATUS "_______________________________________Compiling on Windows")
elseif("Linux" STREQUAL "${CMAKE_SYSTEM_NAME}")
message(STATUS "_______________________________________Compiling on GNU/Linux :-)")
endif()
set(CMAKE_BUILD_PARALLEL_LEVEL 8)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
#list(APPEND CMAKE_PREFIX_PATH "/home/enigma/Qt/5.15.2/gcc_64") #linux
list(APPEND CMAKE_PREFIX_PATH "C:\\Qt\\Tools\\mingw810_64")
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTOUIC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
message(STATUS "___________________________________________________${CMAKE_BUILD_TYPE}")
if(CMAKE_BUILD_TYPE STREQUAL "Debug")
set(binPath "binDebugProj")
elseif()
set(binPath "binProj")
endif()
set(TMP_BUILD "tmpBuild")
set(Proj_LIB "Projlib")
add_subdirectory(${Proj_LIB} "${CMAKE_SOURCE_DIR}/../${binPath}/${TMP_BUILD}/${Proj_LIB}")
include_directories(${Proj_LIB})
The Solution is:
target_link_libraries(${CARDEA_LIB} PUBLIC Qt5::Core Qt5::Network iphlpapi)
At the end did work. (I was savin in anoter CMakeLists.txt AGGHH, too musch hours today)
I'm developing a cpp project in Clion. For the build I use cmake. Last weekend I upgraded from ubuntu 18.04 to 20.04, from then I cannot build my project and I get the error:
/usr/local/include/boost/system/error_code.hpp:221: undefined reference to `boost::system::generic_category()'. It seems that something in the linking isn't right. I reinstalled all packages, tried different versions but nothing. My CMakeLists.txt is:
cmake_minimum_required(VERSION 3.7)
project(pki_cpp)
set(CMAKE_CXX_STANDARD 11)
set(THREADS_PREFER_PTHREAD_FLAG ON)
#find_package(libmongocxx REQUIRED)
find_package(mongocxx REQUIRED)
find_package(bsoncxx REQUIRED)
include_directories(${LIBMONGOCXX_INCLUDE_DIR})
include_directories(${LIBBSONCXX_INCLUDE_DIR})
include_directories(SYSTEM ./lib)
set(BOOST_ROOT /usr/lib/)
find_package(Boost 1.71.0 REQUIRED COMPONENTS system chrono thread filesystem)
include_directories(${Boost_INCLUDE_DIR})
if(NOT Boost_FOUND)
message(FATAL_ERROR "Could not find boost!")
endif()
find_package(Threads REQUIRED)
find_package(OpenSSL REQUIRED)
# A custom library
add_subdirectory(asnDatatypes)
include_directories({CMAKE_CURRENT_SOURCE_DIR} asnDatatypes)
set_property(TARGET asnLibrary PROPERTY POSITION_INDEPENDENT_CODE ON)
# end custom library
#cryptopp library
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/contrib/cmake")
find_package(CryptoPP REQUIRED)
include_directories(${CRYPTOPP_INCLUDE_DIR})
link_directories(${CryptoPP_INCLUDE_DIR})
# end cryptopp
add_executable(pki_cpp main.cpp rootCA.cpp rootCA.h)
target_include_directories(pki_cpp PRIVATE ${Boost_INCLUDE_DIRS} ${LIBMONGOCXX_INCLUDE_DIRS} )
link_directories(pki_cpp ${Boost_LIBRARY_DIRS})
target_link_libraries(pki_cpp ${Boost_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ${Boost_FILESYSTEM_LIBRARY} ${Boost_SYSTEM_LIBRARY} ${Boost_LIBRARIES} Boost::system Threads::Threads boost_system asnLibrary OpenSSL::SSL ${CRYPTOPP_LIBRARIES} ${LIBMONGOCXX_LIBRARIES} mongo::bsoncxx_shared mongo::mongocxx_shared ${CMAKE_THREAD_LIBS_INIT} ${Boost_FILESYSTEM_LIBRARY} ${Boost_SYSTEM_LIBRARY} Boost::system)
Any help is appreciated!
That's a lot of stuff, all randomly ordered and commented out. The obvious error is a failure to link Boost System
I'd go with
FIND_PACKAGE(Boost 1.65.0
COMPONENTS system program_options REQUIRED)
LINK_DIRECTORIES(${Boost_LIBRARY_DIRS})
INCLUDE_DIRECTORIES(${Boost_INLUDE_DIRS})
LINK_LIBRARIES(${Boost_LIBRARIES})
Alternatively you can be specific and link specific libs to specific targets
TARGET_LINK_LIBRARIES(mylib ${Boost_SYSTEM_LIBRARY})
TARGET_LINK_LIBRARIES(myexecutable ${Boost_THREAD_LIBRARY})
I'm running RHEL 5.1 and use gcc.
How I tell cmake to add -pthread to compilation and linking?
#Manuel was part way there. You can add the compiler option as well, like this:
If you have CMake 3.1.0+, this becomes even easier:
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)
target_link_libraries(my_app PRIVATE Threads::Threads)
If you are using CMake 2.8.12+, you can simplify this to:
find_package(Threads REQUIRED)
if(THREADS_HAVE_PTHREAD_ARG)
target_compile_options(my_app PUBLIC "-pthread")
endif()
if(CMAKE_THREAD_LIBS_INIT)
target_link_libraries(my_app "${CMAKE_THREAD_LIBS_INIT}")
endif()
Older CMake versions may require:
find_package(Threads REQUIRED)
if(THREADS_HAVE_PTHREAD_ARG)
set_property(TARGET my_app PROPERTY COMPILE_OPTIONS "-pthread")
set_property(TARGET my_app PROPERTY INTERFACE_COMPILE_OPTIONS "-pthread")
endif()
if(CMAKE_THREAD_LIBS_INIT)
target_link_libraries(my_app "${CMAKE_THREAD_LIBS_INIT}")
endif()
If you want to use one of the first two methods with CMake 3.1+, you will need set(THREADS_PREFER_PTHREAD_FLAG ON) there too.
The following should be clean (using find_package) and work (the find module is called FindThreads):
cmake_minimum_required (VERSION 2.6)
find_package (Threads)
add_executable (myapp main.cpp ...)
target_link_libraries (myapp ${CMAKE_THREAD_LIBS_INIT})
Here is the right anwser:
ADD_EXECUTABLE(your_executable ${source_files})
TARGET_LINK_LIBRARIES( your_executable
pthread
)
equivalent to
-lpthread
target_compile_options solution above is wrong, it won't link the library.
Use:
SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -pthread")
OR
target_link_libraries(XXX PUBLIC pthread)
OR
set_target_properties(XXX PROPERTIES LINK_LIBRARIES -pthread)
I'm trying to run travis test,but I get the following error.
I checked my files and directories, all files are exist.
I think my mistake in cmake file, but I can't find it.
Maybe someone can help me?
make[1]: *** No rule to make target CMakeFiles/test.dir/all', needed byCMakeFiles/Examples.dir/all'. Stop.
cmake_minimum_required(VERSION 2.8.7)
project(test)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(Boost_USE_STATIC_LIBS ON)
set(Boost_USE_MULTITHREADED ON)
set(Boost_USE_STATIC_RUNTIME OFF)
option(BUILD_SHARED_LIBS "Build shared instead of static library" OFF)
option(BUILD_TESTS "Build tests for webdavclient" ON)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/tests/ /sources)
add_library(test STATIC ${CMAKE_CURRENT_SOURCE_DIR}/sources/client.cpp tests/main.cpp)
find_package(OpenSSL REQUIRED)
find_package(Boost REQUIRED)
find_package(CURL REQUIRED)
include_directories(${CURL_INCLUDE_DIR})
if(Boost_FOUND)
include_directories(${Boost_INCLUDE_DIRS})
target_link_libraries(test ${Boost_LIBRARIES})
endif()
if(UNIX)
set(DEPENDS_LIBRARIES ${OPENSSL_LIBRARIES} ${CURL_LIBRARY} ${Boost_LIBRARIES})
elseif(MSVC)
set(DEPENDS_LIBRARIES ${OPENSSL_LIBRARIES} ${CURL_LIBRARY} ${Boost_LIBRARIES} ws2_32)
endif()
add_executable(Examples ${CMAKE_CURRENT_SOURCE_DIR}/examples/main.cpp)
target_link_libraries(Examples ${PROJECT_NAME} ${DEPENDS_LIBRARIES})
if(BUILD_TESTS)
enable_testing()
file(GLOB ${PROJECT_NAME}_TEST_SOURCES tests/*.cpp)
add_executable(init ${${PROJECT_NAME}_TEST_SOURCES})
target_link_libraries(init ${PROJECT_NAME} ${DEPENDS_LIBRARIES})
add_test(NAME init COMMAND init "-s" "-r" "compact" "--use-colour" "yes")
endif()
Command enable_testing() among other things creates target test. But you already have library target with the same name. This confuses CMake. For avoid this, rename library target.
Also, it is not recommended to have target name same as the project. So, rename project too.
I'm on Mac OS X, with the following CMake file, and Boost v1.58.0 installed at /usr/local/lib/boost_1_58_0, and every time I run cmake it prints "Could NOT find Boost". I've read through every stack overflow post I can about how to get this working, and nothing has worked. Is there something I'm just missing?
cmake_minimum_required (VERSION 3.1)
project (HelloWorld)
set (CMAKE_CXX_FLAGS "--std=gnu++11 ${CMAKE_C_FLAGS}")
file (GLOB SOURCE_FILES "source/*.cpp")
set (CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} /usr/local/lib/boost_1_58_0/boost)
set (CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} /usr/local/lib/boost_1_58_0/stage/lib)
set (Boost_NO_BOOST_CMAKE ON)
set (BOOST_NO_SYSTEM_PATHS ON)
set (BOOST_ROOT /usr/local/lib/boost_1_58_0)
set (BOOST_INCLUDEDIR /usr/local/lib/boost_1_58_0/boost)
set (BOOST_LIBRARYDIR /usr/local/lib/boost_1_58_0/stage/lib)
set (Boost_USE_STATIC_LIBS OFF)
set (Boost_USE_MULTITHREADED ON)
set (Boost_USE_STATIC_RUNTIME OFF)
find_package (Boost 1.58.0 COMPONENTS optional)
if (Boost_FOUND)
include_directories (${Boost_INCLUDE_DIRS})
target_link_libraries (helloworld ${Boost_LIBRARIES})
endif ()
include_directories ("source")
add_executable (helloworld ${SOURCE_FILES})
This was breaking because optional isn't a library, it's header-only, so changing it to find_package (Boost 1.58.0) fixed the problem.