Hi,
I've tried to static linking Qpid Proton C++ 0.29.0 to my project and
after I linked all the .a library which are generated by Qpid Proton C++
cmake project the linker still shows undefined reference errors, few
examples of the errors:
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
/usr/bin/ld: /home/pi/x/main.cpp:222: undefined reference to
`proton::container::run()'
/usr/bin/ld: /home/pi/x/main.cpp:222: undefined reference to
`proton::container::~container()'
/usr/bin/ld: /home/pi/x/main.cpp:222: undefined reference to
`proton::container::~container()'
/usr/bin/ld:
CMakeFiles/x.dir/main.cpp.o:(.rodata._ZTV6client[_ZTV6client]+0x14):
undefined reference to
`proton::messaging_handler::on_container_stop(proton::container&)'
/usr/bin/ld:
CMakeFiles/x.dir/main.cpp.o:(.rodata._ZTV6client[_ZTV6client]+0x1c):
undefined reference to
`proton::messaging_handler::on_sendable(proton::sender&)'
/usr/bin/ld:
CMakeFiles/x.dir/main.cpp.o:(.rodata._ZTV6client[_ZTV6client]+0x20):
undefined reference to
`proton::messaging_handler::on_transport_open(proton::transport&)'
/usr/bin/ld:
CMakeFiles/x.dir/main.cpp.o:(.rodata._ZTV6client[_ZTV6client]+0x24):
undefined reference to
`proton::messaging_handler::on_transport_close(proton::transport&)'
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
I've created a minimal as possible CMake based project to test the Qpid
static linking. The test project contains a reference to Qpid Proton C++
repo (as cmake external project) and my project contains a 'main.cpp'
which is a simple AMQP client sample code from Qpid Proton C++ repo.
Here is my CMakelists.txt content:
cmake_minimum_required(VERSION 3.13 FATAL_ERROR)
project(xxx CXX)
set(CMAKE_BINARY_DIR ${CMAKE_SOURCE_DIR}/bin)
set(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR})
include(${CMAKE_ROOT}/Modules/ExternalProject.cmake)
list(INSERT CMAKE_MODULE_PATH 0
"${CMAKE_CURRENT_SOURCE_DIR}/external/cmake-modules")
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -v -std=c++17 -lpthread
-static-libgcc -static-libstdc++ -fdiagnostics-color=auto -lstdc++fs
-latomic -g")
add_executable (x main.cpp)
include(ExternalProject)
########################################################
# apache qpid proton
ExternalProject_Add(qpid_ext
PREFIX extern/qpid
GIT_REPOSITORY https://github.com/apache/qpid-proton.git
GIT_TAG 0.29.0
CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>
-DCMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}
-DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}
-DBUILD_WITH_CXX=ON
-DBUILD_CPP=ON
-DBUILD_CPP_03=OFF
-DBUILD_STATIC_LIBS=ON
#-DENABLE_WARNING_ERROR=OFF
#-DENABLE_UNDEFINED_ERROR=ON
#-DENABLE_LINKTIME_OPTIMIZATION=ON
#-DENABLE_HIDE_UNEXPORTED_SYMBOLS=OFF
-DENABLE_FUZZ_TESTING=OFF
-DFUZZ_LONG_TESTS=OFF
-DFUZZ_REGRESSION_TESTS=OFF
-DBUILD_TESTING=OFF
-DBUILD_BINDINGS="" # no bindings enabled
-DSYSINSTALL_BINDINGS=ON
TEST_COMMAND "" # do not run tests
UPDATE_COMMAND "" # do not check git repo again
)
ExternalProject_Get_Property(qpid_ext INSTALL_DIR)
set(qpid_INCLUDE_DIR ${INSTALL_DIR}/include)
file(MAKE_DIRECTORY ${qpid_INCLUDE_DIR}) # Must exists
add_library(qpid1 STATIC IMPORTED)
set_target_properties(qpid1 PROPERTIES
IMPORTED_LOCATION
${INSTALL_DIR}/lib/libqpid-proton-core-static${CMAKE_STATIC_LIBRARY_SUFFIX}
INTERFACE_INCLUDE_DIRECTORIES ${qpid_INCLUDE_DIR}
)
add_dependencies(qpid1 qpid_ext)
add_library(qpid2 STATIC IMPORTED)
set_target_properties(qpid2 PROPERTIES
IMPORTED_LOCATION
${INSTALL_DIR}/lib/libqpid-proton-proactor-static${CMAKE_STATIC_LIBRARY_SUFFIX}
INTERFACE_INCLUDE_DIRECTORIES ${qpid_INCLUDE_DIR}
)
add_dependencies(qpid2 qpid_ext)
add_library(qpid3 STATIC IMPORTED)
set_target_properties(qpid3 PROPERTIES
IMPORTED_LOCATION
${INSTALL_DIR}/lib/libqpid-proton-static${CMAKE_STATIC_LIBRARY_SUFFIX}
INTERFACE_INCLUDE_DIRECTORIES ${qpid_INCLUDE_DIR}
)
add_dependencies(qpid3 qpid_ext)
unset(INSTALL_DIR)
# apache qpid proton
########################################################
target_link_libraries (x qpid1 qpid2 qpid3)
The "ExternalProject" cmake works perfectly, its generating all the ".a"
libs: 'libqpid-proton-core-static.a',
'libqpid-proton-proactor-static.a', 'libqpid-proton-static.a'. As you
seen above I linked all three ".a" lib to the executable without any luck.
Anybody has a hint how to resolve linking errors? Is this three ".a" lib
covers/contains all the Qpid Proton C++ codebase or there should be more
".a" generated?
Note: If I cloning the Qpid Proton C++ repo and compiling & install it
standalone (so the ".a" libs goes to the common /usr/local/lib) the
static linking will not succeed either.
Thanks,
berge
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
