I am trying to build https://pcl.readthedocs.io/projects/tutorials/en/latest/writing_pcd.html. using the following cmake on my university supercomputer:
include(CMakePrintHelpers)
cmake_minimum_required(VERSION 3.23 FATAL_ERROR)
project(project)
set(Boost_NO_WARN_NEW_VERSIONS 1)
set(VTK_DIR /software/spackages/linux-rocky8-x86_64/gcc-9.5.0/vtk-9.0.3-hfji6zde3waya5ig7cvvsmdylzvmdrty/lib/cmake/vtk-9.0)
find_package(PCL 1.11 REQUIRED COMPONENTS common io search impl)
set(PCL_INCLUDE_DIRS /software/spackages/linux-rocky8-x86_64/gcc-9.5.0/pcl-1.11.1-5ymdvadjcubkab43zen2svmiwnh5hmga/include/pcl-1.11 /software/spackages/linux-rocky8-x86_64/gcc-9.5.0/eigen-3.4.0-odvljtj76a2twpnkiztib7qiod346tjp)
cmake_print_variables(PCL_LIBRARIES)
include_directories(${PCL_INCLUDE_DIRS})
link_directories(${PCL_LIBRARY_DIRS})
add_definitions(${PCL_DEFINITIONS})
add_executable(pcd_write_test pcl_view.cpp)
target_link_libraries(pcd_write_test ${PCL_LIBRARIES})
I get the following error:
/home/pcl_view.cpp:5: warning: "_GLIBCXX_USE_CXX11_ABI" redefined
#define _GLIBCXX_USE_CXX11_ABI 0
In file included from /usr/include/c++/8/iostream:38,
from /home/rgadde/courses/CPSC4780/project/pcl_view.cpp:1:
/usr/include/c++/8/x86_64-redhat-linux/bits/c++config.h:2204: note: this is the location of the previous definition
# define _GLIBCXX_USE_CXX11_ABI 1
[100%] Linking CXX executable pcd_write_test
/software/spackages/linux-rocky8-x86_64/gcc-9.5.0/pcl-1.11.1-5ymdvadjcubkab43zen2svmiwnh5hmga/lib/libpcl_io.so: undefined reference to `std::__cxx11::basic_stringstream<char, std::char_traits<char>, std::allocator<char> >::basic_stringstream()#GLIBCXX_3.4.26'
/software/spackages/linux-rocky8-x86_64/gcc-9.5.0/pcl-1.11.1-5ymdvadjcubkab43zen2svmiwnh5hmga/lib/libpcl_io.so: undefined reference to `std::__cxx11::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> >::basic_ostringstream()#GLIBCXX_3.4.26'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/pcd_write_test.dir/build.make:137: pcd_write_test] Error 1
make[1]: *** [CMakeFiles/Makefile2:83: CMakeFiles/pcd_write_test.dir/all] Error 2
make: *** [Makefile:91: all] Error 2
How can this error be resolved?
I tried the following:
Added # define _GLIBCXX_USE_CXX11_ABI 0
Compiled using cmake -DCMAKE_CXX_COMPILER=g++ ..
Related
I'm trying to include TensorFlow lite libraries in CMakeLists.txt of C++ project. I followed the instructure in https://www.tensorflow.org/lite/guide/build_cmake
git clone https://github.com/tensorflow/tensorflow.git tensorflow_src
mkdir tflite_build && cd tflite_build
cmake ../tensorflow_src/tensorflow/lite -DTFLITE_ENABLE_XNNPACK=OFF
-DTFLITE_ENABLE_EXTERNAL_DELEGATE=OFF TFLITE_ENABLE_RUY=ON/OFF (tried both option)
cmake --build . --config release -j24
and added all the libs to the CmakeLists.txt file as follow
cmake_minimum_required(VERSION 3.0.0)
project(main)
set(TENSORFLOW_SRC_DIR "test_cpp/tensorflow_src")
set(TFLITE_DIR "test_cpp/tflite_build")
find_package(OpenCV 4 REQUIRED)
file(GLOB SOURCE_FILES src/*.cpp src/*.h )
message(${SOURCE_FILES})
add_executable(${CMAKE_PROJECT_NAME} ${SOURCE_FILES})
include_directories(
${TENSORFLOW_SRC_DIR}
${TFLITE_DIR}/eigen
${TFLITE_DIR}/neon2sse
${TFLITE_DIR}/abseil-cpp
${TFLITE_DIR}/farmhash/src
${TFLITE_DIR}/flatbuffers/include
${TFLITE_DIR}/gemmlowp/public
${TFLITE_DIR}/gemmlowp
${TFLITE_DIR}/ruy
${TFLITE_DIR}/cpuinfo/include
)
target_link_libraries(
${CMAKE_PROJECT_NAME} PUBLIC
${OpenCV_LIBS}
${TFLITE_DIR}/_deps/farmhash-build/libfarmhash.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/flags/libabsl_flags_marshalling.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/flags/libabsl_flags_program_name.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/flags/libabsl_flags_reflection.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/flags/libabsl_flags_private_handle_accessor.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/flags/libabsl_flags_config.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/flags/libabsl_flags_internal.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/flags/libabsl_flags_commandlineflag_internal.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/flags/libabsl_flags_commandlineflag.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/flags/libabsl_flags.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/strings/libabsl_cordz_functions.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/strings/libabsl_strings_internal.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/strings/libabsl_cordz_handle.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/strings/libabsl_str_format_internal.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/strings/libabsl_cordz_info.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/strings/libabsl_cord.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/strings/libabsl_cord_internal.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/strings/libabsl_strings.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/container/libabsl_raw_hash_set.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/container/libabsl_hashtablez_sampler.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/synchronization/libabsl_synchronization.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/synchronization/libabsl_graphcycles_internal.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/hash/libabsl_city.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/hash/libabsl_hash.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/hash/libabsl_low_level_hash.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/time/libabsl_civil_time.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/time/libabsl_time_zone.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/time/libabsl_time.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/profiling/libabsl_exponential_biased.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/types/libabsl_bad_optional_access.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/types/libabsl_bad_variant_access.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/numeric/libabsl_int128.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/base/libabsl_raw_logging_internal.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/base/libabsl_throw_delegate.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/base/libabsl_base.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/base/libabsl_log_severity.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/base/libabsl_spinlock_wait.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/base/libabsl_malloc_internal.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/status/libabsl_status.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/debugging/libabsl_stacktrace.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/debugging/libabsl_demangle_internal.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/debugging/libabsl_symbolize.a
${TFLITE_DIR}/_deps/abseil-cpp-build/absl/debugging/libabsl_debugging_internal.a
${TFLITE_DIR}/_deps/flatbuffers-build/libflatbuffers.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_ctx.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_kernel_avx.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_have_built_path_for_avx512.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_cpuinfo.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_frontend.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_blocking_counter.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_kernel_avx512.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_apply_multiplier.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_block_map.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_trmul.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_kernel_avx2_fma.a
${TFLITE_DIR}/_deps/ruy-build/ruy/profiler/libruy_profiler_instrumentation.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_denormal.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_prepacked_cache.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_system_aligned_alloc.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_context_get_ctx.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_allocator.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_have_built_path_for_avx2_fma.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_pack_avx.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_wait.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_context.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_pack_avx2_fma.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_thread_pool.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_pack_arm.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_tune.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_kernel_arm.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_have_built_path_for_avx.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_prepare_packed_matrices.a
${TFLITE_DIR}/_deps/ruy-build/ruy/libruy_pack_avx512.a
${TFLITE_DIR}/_deps/fft2d-build/libfft2d_fftsg.a
${TFLITE_DIR}/_deps/fft2d-build/libfft2d_fftsg2d.a
${TFLITE_DIR}/_deps/clog-build/libclog.a
${TFLITE_DIR}/_deps/cpuinfo-build/libcpuinfo.a
${TFLITE_DIR}/libtensorflow-lite.a
dl
)
It worked on a windows machine but on Linux I'm getting error about
undefined reference to `ruy::ScopedSuppressDenormals::ScopedSuppressDenormals()'
[ 33%] Building CXX object CMakeFiles/main.dir/src/main.cpp.o
[ 66%] Building CXX object CMakeFiles/main.dir/src/ssd_mobilenet_tflite.cpp.o
[100%] Linking CXX executable main
/usr/bin/ld: ../tflite_build/libtensorflow-lite.a(interpreter.cc.o): in function `tflite::Interpreter::Invoke()':
interpreter.cc:(.text+0x3ff): undefined reference to `ruy::ScopedSuppressDenormals::ScopedSuppressDenormals()'
/usr/bin/ld: interpreter.cc:(.text+0x523): undefined reference to `ruy::ScopedSuppressDenormals::~ScopedSuppressDenormals()'
/usr/bin/ld: ../tflite_build/libtensorflow-lite.a(interpreter.cc.o): in function `tflite::Interpreter::Invoke() [clone .cold]':
interpreter.cc:(.text.unlikely+0x5c): undefined reference to `ruy::ScopedSuppressDenormals::~ScopedSuppressDenormals()'
/usr/bin/ld: CMakeFiles/main.dir/src/ssd_mobilenet_tflite.cpp.o: in function `SSD_MOBILENET::loadModel(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
ssd_mobilenet_tflite.cpp:(.text+0x2b2): undefined reference to `tflite::ops::builtin::BuiltinOpResolver::BuiltinOpResolver()'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/main.dir/build.make:231: main] Error 1
make[1]: *** [CMakeFiles/Makefile2:76: CMakeFiles/main.dir/all] Error 2
make: *** [Makefile:84: all] Error 2
I don't want to add the libs as "add_subdirectory" as it was given in the guide because it will compile every time I create a new project
So how can I solve the undefined reference to `ruy::ScopedSuppressDenormals::ScopedSuppressDenormals()'
UPDATE:
if I change the CMakeLists.txt to :
cmake_minimum_required(VERSION 3.0.0)
project(main)
set(TENSORFLOW_SRC_DIR "test_cpp/tensorflow_src")
set(TFLITE_DIR "test_cpp/tflite_build")
find_package(OpenCV 4 REQUIRED)
find_package(TFLITE)
file(GLOB SOURCE_FILES src/*.cpp src/*.h )
message(${SOURCE_FILES})
add_executable(${CMAKE_PROJECT_NAME} ${SOURCE_FILES})
include_directories(
${TENSORFLOW_SRC_DIR}
)
target_link_libraries(
${CMAKE_PROJECT_NAME} PUBLIC
${OpenCV_LIBS}
${TFLITE_LIBS}
)
I take this error
from test_cpp/src/main.cpp:1:
test_cpp/tensorflow_src/tensorflow/lite/interpreter_builder.h:26:10: fatal error: flatbuffers/flatbuffers.h: No such file or directory
26 | #include "flatbuffers/flatbuffers.h" // from #flatbuffers
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [CMakeFiles/main.dir/build.make:63: CMakeFiles/main.dir/src/main.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:76: CMakeFiles/main.dir/all] Error 2
make: *** [Makefile:84: all] Error 2
I found this repo that contains all needed libs for the project https://github.com/muhammedakyuzlu/tflite-cpp-package
I believe that the problem you have is the ordering of the libs.
Try putting the libtensorflow-lite.a before the ruy-*.a in your setup.
There is another trick that could help you getting started.
Just add this to your CMake File:
include(FetchContent)
FetchContent_Declare(
tensorflow
GIT_REPOSITORY https://github.com/tensorflow/tensorflow.git
GIT_PROGRESS TRUE
GIT_SHALLOW TRUE
GIT_TAG v2.10.0
SOURCE_SUBDIR tensorflow/lite
)
FetchContent_MakeAvailable(tensorflow)
and link to the library:
target_link_libraries(${PROJECT_NAME} PRIVATE
tensorflow-lite
)
This is downloading all dependencies automatically and should make you ready to go.
I am using Gurobi solver in a C++ project. However, when I tried to build the project in Clion, I got the error:
Undefined symbols for architecture x86_64:
and many lines like:
"__ZN6GRBEnv3setERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES7_", referenced from:
_main in main.cpp.o
and
__ZNSt3__16vectorIdNS_9allocatorIdEEE21__push_back_slow_pathIKdEEvRT_ in libgurobi_c++.a(LinExpr.o)
__ZNSt3__16vectorI6GRBVarNS_9allocatorIS1_EEE21__push_back_slow_pathIKS1_EEvRT_ in libgurobi_c++.a(LinExpr.o)
the error information also contains:
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status
make[3]: *** [gurobitest] Error 1
make[2]: *** [CMakeFiles/gurobitest.dir/all] Error 2
make[1]: *** [CMakeFiles/gurobitest.dir/rule] Error 2
make: *** [gurobitest] Error 2
Here is my CmakeLists.txt:
cmake_minimum_required(VERSION 3.17)
project(gurobitest)
set(CMAKE_CXX_STANDARD 14)
set(GUROBI_INCLUDE_DIRECTORY "/library/gurobi912/mac64/include")
include_directories(${GUROBI_INCLUDE_DIRECTORY})
set(GUROBI_LIB_DIRECTORY "/library/gurobi912/mac64/lib")
link_directories(${GUROBI_LIB_DIRECTORY})
add_executable(gurobitest main.cpp ${GUROBI_INCLUDE_DIRECTORY}/gurobi_c++.h)
target_link_libraries(gurobitest gurobi_c++ gurobi91)
It seems I've already linked the library to the project properly, but it didn't work anyway. I really appreciate it for any help.
I am trying to build a cpp project using CMakeLists.txt.
I installed both Paho Mqtt C and Cpp and their Config.cmake can be found at /usr/local/lib/cmake/eclipse-paho-mqtt-c/eclipse-paho-mqtt-cConfig.cmake and /usr/local/lib/cmake/PahoMqttCpp/PahoMqttCppConfig.cmake in my system.
I am trying to compile the async_publish.cpp. For now I could only get it built running the following CMakeLists.txt
cmake_minimum_required(VERSION 3.10)
project("Mqtt Test")
#find_package(PahoMqttCpp REQUIRED)
#find_package(eclipse-paho-mqtt-c REQUIRED)
add_executable(mqtt_client mqtt_client.cpp)
target_link_libraries(mqtt_client pthread crypto ssl paho-mqtt3as paho-mqttpp3)
The problem is ... how do I get the libraries from find_package() and pick the right ${whatever_pkg_LIB} and maybe include files?
I tried
target_link_libraries(mqtt_client pthread crypto ssl ${PAHO_MQTT_C_LIBRARIES} ${PAHO_MQTT_CPP_LIBRARIES})
but it didn't work. I got the following error
CMakeFiles/mqtt_client.dir/mqtt_client.cpp.o: In function `main':
mqtt_client.cpp:(.text+0x3ae): undefined reference to `mqtt::async_client::async_client(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int, mqtt::iclient_persistence*)'
mqtt_client.cpp:(.text+0x401): undefined reference to `mqtt::async_client::set_connected_handler(std::function<void (std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>)'
mqtt_client.cpp:(.text+0x445): undefined reference to `mqtt::async_client::set_connection_lost_handler(std::function<void (std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>)'
mqtt_client.cpp:(.text+0x463): undefined reference to `mqtt::connect_options::connect_options()'
mqtt_client.cpp:(.text+0x4b7): undefined reference to `mqtt::message::message(mqtt::buffer_ref<char>, mqtt::buffer_ref<char>, int, bool)'
mqtt_client.cpp:(.text+0x4ee): undefined reference to `mqtt::will_options::will_options(mqtt::message const&)'
mqtt_client.cpp:(.text+0x507): undefined reference to `mqtt::connect_options::set_will(mqtt::will_options const&)'
mqtt_client.cpp:(.text+0x520): undefined reference to `mqtt::connect_options::set_automatic_reconnect(int, int)'
mqtt_client.cpp:(.text+0x561): undefined reference to `mqtt::connect_options::connect_options(mqtt::connect_options const&)'
mqtt_client.cpp:(.text+0x581): undefined reference to `mqtt::async_client::connect(mqtt::connect_options)'
mqtt_client.cpp:(.text+0x6d1): undefined reference to `mqtt::topic::publish(mqtt::buffer_ref<char>)'
mqtt_client.cpp:(.text+0x798): undefined reference to `mqtt::topic::publish(mqtt::buffer_ref<char>)'
mqtt_client.cpp:(.text+0x8d9): undefined reference to `mqtt::async_client::~async_client()'
mqtt_client.cpp:(.text+0xb9c): undefined reference to `mqtt::async_client::~async_client()'
CMakeFiles/mqtt_client.dir/mqtt_client.cpp.o: In function `mqtt::async_client::disconnect()':
mqtt_client.cpp:(.text._ZN4mqtt12async_client10disconnectEv[_ZN4mqtt12async_client10disconnectEv]+0x45): undefined reference to `mqtt::disconnect_options::disconnect_options()'
collect2: error: ld returned 1 exit status
CMakeFiles/mqtt_client.dir/build.make:95: recipe for target 'mqtt_client' failed
make[2]: *** [mqtt_client] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/mqtt_client.dir/all' failed
make[1]: *** [CMakeFiles/mqtt_client.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2
this is the CMakeLists.txt I use to make my project
cmake_minimum_required(VERSION 3.1) set(CMAKE_CXX_STANDARD 20)
project(Farm_interface)
include_directories(${PROJECT_SOURCE_DIR}/include)
add_executable(Farm.exe src/main.cpp src/subscriber.cpp)
target_link_libraries( Farm.exe paho-mqttpp3 paho-mqtt3as pthread)
I am trying to set up SDL in CLion with MinGW, but I get errors after errors, and I just can't imagine where do I go wrong. Now I have this Cmake code, and I get the error undefined reference to 'WinMain#16' . I suppose I forget to link something, probably SDLmain, but I think I wrote it there in the target_link_libraries(). I would greatly appreciate some help to make it work.
cmake_minimum_required(VERSION 3.15)
project(SDL_project)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
find_package(SDL2 REQUIRED)
include_directories(${SDL2_INCLUDE_DIR})
add_executable(SDL_project main.cpp)
target_link_libraries(${PROJECT_NAME} ${SDL2_LIBRARY} -lmingw32 -lSDL2main -lSDL2 -mwindows)
The error message:
====================[ Build | SDL_project | Debug ]=============================
"A:\CLion 2019.2.5\bin\cmake\win\bin\cmake.exe" --build D:\SDL_project\cmake-build-debug --target SDL_project -- -j 4
Scanning dependencies of target SDL_project
[ 50%] Building CXX object CMakeFiles/SDL_project.dir/main.cpp.obj
[100%] Linking CXX executable SDL_project.exe
A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/bin/ld.exe: A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/lib/../lib/libmingw32.a(lib32_libmingw32_a-crt0_c.o): in function `main':
D:/mingwbuild/mingw-w64-crt-git/src/mingw-w64/mingw-w64-crt/crt/crt0_c.c:18: undefined reference to `WinMain#16'
collect2.exe: error: ld returned 1 exit status
CMakeFiles\SDL_project.dir\build.make:86: recipe for target 'SDL_project.exe' failed
CMakeFiles\Makefile2:74: recipe for target 'CMakeFiles/SDL_project.dir/all' failed
CMakeFiles\Makefile2:81: recipe for target 'CMakeFiles/SDL_project.dir/rule' failed
mingw32-make.exe[3]: *** [SDL_project.exe] Error 1
mingw32-make.exe[2]: *** [CMakeFiles/SDL_project.dir/all] Error 2
mingw32-make.exe[1]: *** [CMakeFiles/SDL_project.dir/rule] Error 2
mingw32-make.exe: *** [SDL_project] Error 2
Makefile:117: recipe for target 'SDL_project' failed
And I also made a cmake folder in the project folder, for the SDL find, but I am not sure if it is necessary.
set(FIND_SDL2_PATHS D:/SDL2/SDL2-devel-2.0.12-mingw/SDL2-2.0.12/x86_64-w64-mingw32)
find_path(SDL2_INCLUDE_DIR SDL2
PATH_SUFFIXES include
PATHS ${FIND_SDL2_PATHS})
find_library(SDL2_LIBRARY
NAMES SDL2
PATH_SUFFIXES lib
PATHS ${FIND_SDL2_PATHS})
The solution was to add a new line to the end: add_definitions(-DSDL_MAIN_HANDLED).
Now the CMakeLists.txt code looks like this:
cmake_minimum_required(VERSION 3.15)
project(SDL_project)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
find_package(SDL2 REQUIRED)
include_directories(${SDL2_INCLUDE_DIR})
add_executable(SDL_project main.cpp)
target_link_libraries(${PROJECT_NAME} ${SDL2_LIBRARY} -lmingw32 -mwindows)
add_definitions(-DSDL_MAIN_HANDLED)
And in the project folder in a separete folder called cmake there is the FindSDL2.cmake file, to locate SDL2:
set(FIND_SDL2_PATHS D:/SDL2/SDL2-devel-2.0.12-mingw/SDL2-2.0.12/x86_64-w64-mingw32)
find_path(SDL2_INCLUDE_DIR SDL2
PATH_SUFFIXES include
PATHS ${FIND_SDL2_PATHS})
find_library(SDL2_LIBRARY
NAMES SDL2 SDL2main
PATH_SUFFIXES lib
PATHS ${FIND_SDL2_PATHS})
From the CMakeLists.txt I removed -lSDL2 and -lSDL2main flags, because they resulted in errors:
====================[ Build | SDL_project | Debug ]=============================
"A:\CLion 2019.2.5\bin\cmake\win\bin\cmake.exe" --build D:\SDL_project\cmake-build-debug --target SDL_project -- -j 4
[ 50%] Linking CXX executable SDL_project.exe
A:/MSYS2/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lSDL2
A:/MSYS2/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lSDL2main
collect2.exe: error: ld returned 1 exit status
CMakeFiles\SDL_project.dir\build.make:86: recipe for target 'SDL_project.exe' failed
CMakeFiles\Makefile2:74: recipe for target 'CMakeFiles/SDL_project.dir/all' failed
CMakeFiles\Makefile2:81: recipe for target 'CMakeFiles/SDL_project.dir/rule' failed
Makefile:117: recipe for target 'SDL_project' failed
mingw32-make.exe[3]: *** [SDL_project.exe] Error 1
mingw32-make.exe[2]: *** [CMakeFiles/SDL_project.dir/all] Error 2
mingw32-make.exe[1]: *** [CMakeFiles/SDL_project.dir/rule] Error 2
mingw32-make.exe: *** [SDL_project] Error 2
Also, it is important to use 64-bit mingw-w64, because mingw-w32 also gives errors, like:
====================[ Build | SDL_project | Debug ]=============================
"A:\CLion 2019.2.5\bin\cmake\win\bin\cmake.exe" --build D:\SDL_project\cmake-build-debug --target SDL_project -- -j 4
[ 50%] Linking CXX executable SDL_project.exe
A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/bin/ld.exe: CMakeFiles\SDL_project.dir/objects.a(main.cpp.obj):D:/SDL_project/main.cpp:17: undefined reference to `SDL_Init'
A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/bin/ld.exe: CMakeFiles\SDL_project.dir/objects.a(main.cpp.obj): in function `main':
D:/SDL_project/main.cpp:19: undefined reference to `SDL_GetError'
A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/bin/ld.exe: D:/SDL_project/main.cpp:24: undefined reference to `SDL_CreateWindow'
A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/bin/ld.exe: D:/SDL_project/main.cpp:27: undefined reference to `SDL_GetError'
A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/bin/ld.exe: D:/SDL_project/main.cpp:32: undefined reference to `SDL_GetWindowSurface'
A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/bin/ld.exe: D:/SDL_project/main.cpp:35: undefined reference to `SDL_MapRGB'
A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/bin/ld.exe: D:/SDL_project/main.cpp:35: undefined reference to `SDL_FillRect'
A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/bin/ld.exe: D:/SDL_project/main.cpp:38: undefined reference to `SDL_UpdateWindowSurface'
A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/bin/ld.exe: D:/SDL_project/main.cpp:41: undefined reference to `SDL_Delay'
A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/bin/ld.exe: D:/SDL_project/main.cpp:45: undefined reference to `SDL_DestroyWindow'
A:/MSYS2/mingw32/bin/../lib/gcc/i686-w64-mingw32/9.3.0/../../../../i686-w64-mingw32/bin/ld.exe: D:/SDL_project/main.cpp:48: undefined reference to `SDL_Quit'
collect2.exe: error: ld returned 1 exit status
CMakeFiles\SDL_project.dir\build.make:86: recipe for target 'SDL_project.exe' failed
CMakeFiles\Makefile2:74: recipe for target 'CMakeFiles/SDL_project.dir/all' failed
CMakeFiles\Makefile2:81: recipe for target 'CMakeFiles/SDL_project.dir/rule' failed
Makefile:117: recipe for target 'SDL_project' failed
mingw32-make.exe[3]: *** [SDL_project.exe] Error 1
mingw32-make.exe[2]: *** [CMakeFiles/SDL_project.dir/all] Error 2
mingw32-make.exe[1]: *** [CMakeFiles/SDL_project.dir/rule] Error 2
mingw32-make.exe: *** [SDL_project] Error 2
And, the SDL.dll file from the binary folder has to be added to the compiler, to avoid exit code -1073741515 (0xC0000135). It can be done by setting a path to the folder, or by copying the SDL.dll from the SDL\bin folder to the mingw64\bin folder.
I have started with a project that are using the simple2d library (https://github.com/simple2d/simple2d). But when I try to build my small example project I get a DSO missing error. I think a have manage to link the dependencies for simple2d, but apparently I'm still some thing.
Here is the output:
> ====================[ Build | c_game | Debug ]==================================
/home/fredrik/.local/share/JetBrains/Toolbox/apps/CLion/ch-0/192.5728.100/bin/cmake/linux/bin/cmake --build /home/fredrik/Repos/c_game/cmake-build-debug --target c_game -- -j 2 -m
[ 50%] Linking C executable c_game
/usr/bin/ld: /usr/local/lib/libsimple2d.a(gl.o): undefined reference to symbol 'fmin##GLIBC_2.2.5'
//lib/x86_64-linux-gnu/libm.so.6: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
CMakeFiles/c_game.dir/build.make:85: recipe for target 'c_game' failed
make[3]: *** [c_game] Error 1
CMakeFiles/Makefile2:72: recipe for target 'CMakeFiles/c_game.dir/all' failed
make[2]: *** [CMakeFiles/c_game.dir/all] Error 2
CMakeFiles/Makefile2:84: recipe for target 'CMakeFiles/c_game.dir/rule' failed
make[1]: *** [CMakeFiles/c_game.dir/rule] Error 2
Makefile:118: recipe for target 'c_game' failed
make: *** [c_game] Error 2
And here is my CMakeList.txt, I hope someone can help me.
cmake_minimum_required(VERSION 3.14)
project(c_game C)
set(CMAKE_C_STANDARD 11)
find_package(SDL2 REQUIRED)
find_package(GLEW REQUIRED)
include_directories(${SDL2_INCLUDE_DIRS})
add_executable(c_game main.c)
find_library(SIMPLE2D_LIB libsimple2d.a /usr/local/lib)
message(${SIMPLE2D_LIB})
message(${SDL2_INCLUDE_DIRS})
message(${GLEW_INCLUDE_DIRS})
target_include_directories(c_game PUBLIC ${SDL2_INCLUDE_DIRS} ${GLEW_INCLUDE_DIRS})
target_link_libraries(c_game ${SIMPLE2D_LIB} ${SDL2_LIBRARIES} ${GLEW_LIBRARIES})