Linking errors

[TaxMachine]

its most probably a user issue but im clueless of what I'm suppose to do because of the lack of good documentation. I am trying to use your library from vcpkg and I get this error when I compile the code

src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x12a): undefined reference to `__imp_WSACleanup'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x68a): undefined reference to `__imp__ZTVN6mailio7messageE'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x70f): undefined reference to `__imp__ZN6mailio4imapC1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEjNSt6chrono8durationIxSt5ratioILx1ELx1000EEEE'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x81b): undefined reference to `__imp__ZN6mailio4imap12authenticateERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES8_NS0_13auth_method_tE'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x8bb): undefined reference to `__imp__ZN6mailio4imap6selectERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEb'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x92b): undefined reference to `__imp__ZN6mailio4imap18search_condition_tC1ENS1_8key_typeESt7variantIJSt9monostateNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEENS5_4listISt4pairImSt8optionalImEESaISF_EEEN5boost9gregorian4dateEEE'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x99b): undefined reference to `__imp__ZN6mailio4imap6searchERKNSt7__cxx114listINS0_18search_condition_tESaIS3_EEERNS2_ImSaImEEEb'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x9b5): undefined reference to `__imp__ZN6mailio7messageC1Ev'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x9d1): undefined reference to `__imp__ZN6mailio4imap5fetchEmRNS_7messageEbb'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x9df): undefined reference to `__imp__ZNK6mailio7message4fromEv'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x9fa): undefined reference to `__imp__ZNK6mailio4mime7contentB5cxx11Ev'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x13e3): undefined reference to `__imp__ZTVN6mailio4mimeE'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x18d6): undefined reference to `__imp__ZN6mailio4imapD1Ev'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text+0x1bef): undefined reference to `__imp__ZN6mailio4imapD1Ev'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text$_ZN6mailio7messageD1Ev[_ZN6mailio7messageD1Ev]+0xd): undefined reference to `__imp__ZTVN6mailio7messageE'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text$_ZN6mailio7messageD1Ev[_ZN6mailio7messageD1Ev]+0x771): undefined reference to `__imp__ZTVN6mailio4mimeE'
src/utils/mails/mails.cpp.obj:mails.cpp:(.text.startup+0x2e2): undefined reference to `__imp_WSAStartup'

I have this in my CMakeLists.txt

find_package(mailio CONFIG REQUIRED)
find_package(OpenSSL REQUIRED)
find_package(Boost REQUIRED COMPONENTS system regex date_time)

set(LIB_INCLUDES
        ${CURL_INCLUDE_DIR}
        ${pugixml_INCLUDE_DIR}
        ${argparse_INCLUDE_DIR}
        ${mailio_INCLUDE_DIR}
        ${OPENSSL_INCLUDE_DIR}
        ${Boost_INCLUDE_DIR}
)
set(LINKS
        ${CURL_LIBRARIES}
        pugixml::pugixml
        ${CMAKE_THREAD_LIBS_INIT}
        -lstdc++fs
        ${Boost_LIBRARIES}
        ${OPENSSL_LIBRARIES}
        ${mailio_LIBRARIES}
)

link_directories(
        ${Boost_LIBRARY_DIR}
        ${OPENSSL_LIBRARIES}
        ${CURL_LIBRARY_DIR}
        ${mailio_LIBRARY_DIR}
        -lboost_system
        -lboost_regex
        -lboost_date_time
        -lpthread
        -lcrypto
        -lssl
        -lmailio
        -lwinsock2_32
)

include_directories(project ${LIB_INCLUDES})

target_link_libraries(projetct PUBLIC ${LINKS})

what is the thing im not doing correctly, I tried to do the same as the examples but with no success

[karastojko]

target_link_libraries(projetct PUBLIC ${LINKS}) Is this a typo only here?

[TaxMachine]

not its not even my project name it doesnt matter

[karastojko]

You can use the library without CMake. Just include the headers and link it, like any other Unix library. It would go something like:

g++ -std=c++17 -I ./include/ -I /opt/boost-1.75.0/include/ -L ./build/ -L /opt/boost-1.75.0/lib/ -L /usr/lib/x86_64-linux-gnu/ test.cpp -o test -lboost_system -lboost_regex -lboost_date_time  -lpthread -lcrypto -lssl -lmailio

where the test.cpp is your own example. Ensure that the shared library (libmailio.so) is available.

[TaxMachine]

my project is using CMake I cannot not use it

[TaxMachine]

also I am not on linux

[karastojko]

Here is an extract from one project which uses Mailio:

cmake_minimum_required (VERSION 3.14)
set(PROJ kama)
project (${PROJ} VERSION 0.2.0)
set (CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

set(PROJSRC
    ${PROJECT_SOURCE_DIR}/source/main.cpp
    ${PROJECT_SOURCE_DIR}/source/configuration.cpp
    ${PROJECT_SOURCE_DIR}/source/db_model.cpp
    ${PROJECT_SOURCE_DIR}/source/sender.cpp
    ${PROJECT_SOURCE_DIR}/source/receiver.cpp
)

set(PROJINC
    ${PROJECT_SOURCE_DIR}/include/configuration.hpp
    ${PROJECT_SOURCE_DIR}/include/db_model.hpp
    ${PROJECT_SOURCE_DIR}/include/sender.hpp
    ${PROJECT_SOURCE_DIR}/include/receiver.hpp
)

add_definitions(-DBOOST_ALL_DYN_LINK)
find_package(Boost COMPONENTS system thread REQUIRED)
include_directories(${Boost_INCLUDE_DIR})

find_package(Threads REQUIRED)
include_directories(include)

find_package(OpenSSL)
include_directories(${OPENSSL_INCLUDE_DIR})

include_directories(${CMAKE_SOURCE_DIR}/libs/mailio/include)
find_library(MAILIO_LIB mailio HINTS ${CMAKE_SOURCE_DIR}/libs/mailio/build)

add_executable(${PROJ} ${PROJSRC} ${PROJINC})
target_link_libraries(${PROJ} ${Boost_LIBRARIES} Threads::Threads ${OPENSSL_LIBRARIES} ${MAILIO_LIB})

Let me know whether it works, since I have stripped the other libraries used by the project.

[TaxMachine]

still doesnt link

[karastojko]

Are you using Windows and MSVC? Did Vcpkg compiled the library into mailio.lib and mailio.dll libraries?

[TaxMachine]

Im using g++ and vcpkg compiled them yes, i tried to include those libs in the cmakelist but it still didn't work

[karastojko]

If the examples and test compile, then the library should be installed. Since your CMake cannot locate the library, you can turn on the verbose mode and check the execution output.

[karastojko]

Cannot be considered as the mailio problem.