I ma trying to setup glew for clion but for some reason everything I have tried after researching the subject seems to not work and produce errors. I have downloaded the source files from their main website http://glew.sourceforge.net/ and are located within my clion project under directory Externals. Note: there is for some reason nothing under the lib folder under glew. my assumption build be that cmake builds it then links it which would be fine but I am very new to cmake and have no idea if this is the case.
CMake compile errors
C:\Users\Matt\AppData\Local\JetBrains\Toolbox\apps\CLion\ch-0\171.4073.41\bin\cmake\bin\cmake.exe -DCMAKE_BUILD_TYPE=Debug -G "CodeBlocks - MinGW Makefiles" C:\Users\Matt\CLionProjects\SkyGames
-- Could NOT find Vulkan (missing: VULKAN_INCLUDE_DIR)
-- Using Win32 for window creation
-- Could NOT find GLEW (missing: GLEW_INCLUDE_DIR GLEW_LIBRARY)
-- Configuring done
CMake Error:
Error evaluating generator expression:
$<TARGET_PDB_FILE:glew>
TARGET_PDB_FILE is not supported by the target linker.
-- Generating done
-- Build files have been written to: C:/Users/Matt/CLionProjects/SkyGames/cmake-build-debug
CMakeList for project
cmake_minimum_required(VERSION 3.7)
project(SkyGames)
set(CMAKE_CXX_STANDARD 14)
add_executable(SkyGames ${SOURCE_FILES})
set(GLFW_BUILD_DOCS OFF CACHE BOOL "" FORCE)
set(GLFW_BUILD_TESTS OFF CACHE BOOL "" FORCE)
set(GLFW_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
add_subdirectory(${PROJECT_SOURCE_DIR}/Externals/GLFW3)
###########################
# GLFW
###########################
target_link_libraries(SkyGames glfw)
include_directories(SkyGames ${GLFW_INCLUDE_DIR})
###########################
# GLEW
###########################
add_subdirectory(${PROJECT_SOURCE_DIR}/Externals/glew2s/build/cmake)
find_package(glew REQUIRED)
if (GLEW_FOUND)
include_directories(SkyGames ${GLEW_INCLUDE_DIR})
endif()
##########################
# OPENGL
##########################
find_package(OpenGL REQUIRED)
target_link_libraries(SkyGames ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY})
include_directories(SkyGames ${OPENGL_INCLUDE_DIR})
Update:
It appears that the new version of the CMakeLists.txt works fine except when you build the program it errors saying permission denied. it is further highlighted below.
new GLEW portion of CmakeList.txt
###########################
# GLEW
###########################
set(CMAKE_PREFIX_PATH ${PROJECT_SOURCE_DIR}/Externals/glew2s/build/cmake)
set(GLEW_INCLUDE_DIR ${PROJECT_SOURCE_DIR}/Externals/glew2s/include)
set(GLEW_LIBRARY ${PROJECT_SOURCE_DIR}/Externals/glew2s/lib)
find_package(GLEW REQUIRED)
include_directories(${PROJECT_SOURCE_DIR}/Externals/glew2s/include)
##########################
# OPENGL
##########################
find_package(OpenGL REQUIRED)
target_link_libraries(SkyGames GLEW::GLEW ${OPENGL_LIBRARY} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY})
Build Message
C:\Users\Matt\AppData\Local\JetBrains\Toolbox\apps\CLion\ch-0\171.4073.41\bin\cmake\bin\cmake.exe --build C:\Users\Matt\CLionProjects\SkyGames\cmake-build-debug --target SkyGames -- -j 8
[ 71%] Built target glfw
[ 76%] Linking CXX executable SkyGames.exe
c:/mingw/bin/../lib/gcc/mingw32/5.3.0/../../../../mingw32/bin/ld.exe: cannot find ../Externals/glew2s/lib: Permission denied
collect2.exe: error: ld returned 1 exit status
mingw32-make.exe[3]: *** [SkyGames.exe] Error 1
CMakeFiles\SkyGames.dir\build.make:206: recipe for target 'SkyGames.exe' failed
mingw32-make.exe[2]: *** [CMakeFiles/SkyGames.dir/all] Error 2
mingw32-make.exe[1]: *** [CMakeFiles/SkyGames.dir/rule] Error 2
CMakeFiles\Makefile2:66: recipe for target 'CMakeFiles/SkyGames.dir/all' failed
mingw32-make.exe: *** [SkyGames] Error 2
CMakeFiles\Makefile2:78: recipe for target 'CMakeFiles/SkyGames.dir/rule' failed
Makefile:161: recipe for target 'SkyGames' failed
Related
Below there is the CMakeLists.txt:
cmake_minimum_required(VERSION 3.20)
project(sdl_test)
set(CMAKE_CXX_STANDARD 20)
list(APPEND CMAKE_PREFIX_PATH "D:/lib/SDL2_mingw")
MESSAGE(STATUS "CMAKE_PREFIX_PATH: ${CMAKE_PREFIX_PATH}")
find_package(sdl2 REQUIRED)
MESSAGE(STATUS "SDL2_INCLUDE_DIRS is ${SDL2_INCLUDE_DIRS}")
MESSAGE(STATUS "SDL2_LIBRARIES is ${SDL2_LIBRARIES}")
include_directories(${SDL2_INCLUDE_DIRS})
include_directories(${SDL2_INCLUDE_DIRS}-config-)
add_executable(sdl_test main.cpp)
target_link_libraries(sdl_test ${SDL2_LIBRARIES})
And the CMake console output is:
-- CMAKE_PREFIX_PATH: D:/lib/SDL2_mingw
-- SDL2_INCLUDE_DIRS is D://include;D://include/SDL2
-- SDL2_LIBRARIES is SDL2::SDL2
-- Configuring done
CMake Error at CMakeLists.txt:15 (add_executable):
Target "sdl_test" links to target "SDL2::SDL2" but the target was not
found. Perhaps a find_package() call is missing for an IMPORTED target, or
an ALIAS target is missing?
-- Generating done
CMake Generate step failed. Build files cannot be regenerated correctly.
Not only the ${SDL2_LIBRARIES} (SDL::SDL) cannot be linked, ${SDL2_INCLUDE_DIRS} (D://include;D://include/SDL2) is also wrong. Facutually, it should be D:/lib/SDL2_mingw/include.
My SDL2 lib is under D:/lib/SDL2_mingw. And there does exist a SDL2Config.cmake file. I have write list(APPEND CMAKE_PREFIX_PATH "D:/lib/SDL2_mingw") in the CMakeList.
D:/lib/SDL2_mingw Directory
What's going on here?
Update:
if I enable CMake_GNUtoMS when configure CMake for SDL2, after re-build SDL2 I get both *.a and *.lib files under D:/lib/SDL2_mingw directory.
And then CMake can find the package. However, when compile my project, new error occurs:
mingw32-make.exe[3]: *** No rule to make target 'D:/lib/SDL2_mingw/lib/x64/SDL2.lib', needed by 'sdl_test.exe'. Stop.
mingw32-make.exe[3]: *** Waiting for unfinished jobs....
[ 50%] Building CXX object CMakeFiles/sdl_test.dir/main.cpp.obj
mingw32-make.exe[2]: *** [CMakeFiles\Makefile2:82: CMakeFiles/sdl_test.dir/all] Error 2
mingw32-make.exe[1]: *** [CMakeFiles\Makefile2:89: CMakeFiles/sdl_test.dir/rule] Error 2
mingw32-make.exe: *** [Makefile:123: sdl_test] Error 2
I'm on macOS 12.4 I have run xcode-select --install to install the build tools. I'm using VSCode and my c++ configurations I've added the mac frameworks as.
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks and /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Kernel.framework/Versions/A/Headers/ The reason I added this second one is it contains a string.h file which contains a declaration for memset_s
The error generated is this:
/Users/Greeley/Workspace/Cppspace/Culinoire/build/subprojects/Source/wxWidgets_external/src/unix/utilsunx.cpp:229:5: error: use of undeclared identifier 'memset_s'
memset_s(v, n, 0, n);
^
1 error generated.
make[5]: *** [libs/base/CMakeFiles/wxbase.dir/__/__/__/__/src/unix/utilsunx.cpp.o] Error 1
make[4]: *** [libs/base/CMakeFiles/wxbase.dir/all] Error 2
make[3]: *** [all] Error 2
My code is here: https://github.com/Greeley/Culinoire but it's just CMakeLists.txt files right now, and the wxWidgets Hello World as main.cpp also my .vscode directory.
I followed this: this video https://www.youtube.com/watch?v=zdHqoyG73Jk
and this one https://www.youtube.com/watch?v=MfuBS9n5_aY
And then found this on github with the same issue.
https://github.com/wxWidgets/wxWidgets/issues/19334
and put the define at the top of main.cpp and put it in the defines array within c_cpp_properties.json however I still get the same error as above.
I really don't understand what's going wrong. I'd greatly appreciate some help.
there's 4 CMakeLists.txt in the project, these are their contents:
/CMakeLists.txt
cmake_minimum_required(VERSION 3.6 FATAL_ERROR)
set(CMAKE_C_COMPILER "/Library/Developer/CommandLineTools/usr/bin/c")
set(CMAKE_CXX_COMPILER "/Library/Developer/CommandLineTools/usr/bin/c++")
project(Culinoire LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
# ExternalProject base
set_property(DIRECTORY PROPERTY EP_BASE ${CMAKE_BINARY_DIR}/subprojects)
set(STAGED_INSTALL_PREFIX ${CMAKE_BINARY_DIR}/stage)
add_subdirectory(external)
include(ExternalProject)
ExternalProject_Add(${PROJECT_NAME}_core
DEPENDS
wxWidgets_external
SOURCE_DIR
${CMAKE_CURRENT_SOURCE_DIR}/src
CMAKE_ARGS
-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-DCMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}
-DCMAKE_CXX_EXTENSIONS=${CMAKE_CXX_EXTENSIONS}
-DCMAKE_CXX_STANDARD_REQUIRED=${CMAKE_CXX_STANDARD_REQUIRED}
-DwxWidgets_ROOT_DIR=${wxWidgets_ROOT_DIR}
-DENV_WX_CONFIG=${ENV_WX_CONFIG}
CMAKE_CACHE_ARGS
-DCMAKE_CXX_FLAGS:STRING=${CMAKE_CXX_FLAGS}
-DCMAKE_PREFIX_PATH:PATH=${CMAKE_PREFIX_PATH}
BUILD_ALWAYS
1
INSTALL_COMMAND
""
)
Edit below: Changed static to 1 and universal to 0
/src/CMakeLists.txt
cmake_minimum_required(VERSION 3.6 FATAL_ERROR)
set(CMAKE_C_COMPILER "/Library/Developer/CommandLineTools/usr/bin/c")
set(CMAKE_CXX_COMPILER "/Library/Developer/CommandLineTools/usr/bin/c++")
project(wx_cmake_template_core LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(__STDC_WANT_LIB_EXT1__)
# hack for buggy CMake's FindwxWidgets script
if (DEFINED ENV_WX_CONFIG)
set (ENV{WX_CONFIG} ${ENV_WX_CONFIG})
endif()
set(wxWidgets_USE_DEBUG 1)
set(wxWidgets_USE_UNICODE 1)
set(wxWidgets_USE_UNIVERSAL 0)
set(wxWidgets_USE_STATIC 1)
set(wxWidgets_CONFIG_OPTIONS --toolkit=base --prefix=/usr)
set(wxWidgets_ROOT_DIR "/Users/Greeley/Library/wxWidgets")
set(wxWidgets_LIBRARIES "/Users/Greeley/Library/wxWidgets/lib")
find_package(wxWidgets COMPONENTS core base REQUIRED HINT ${wxWidgets_ROOT_DIR})
set(SRCS main.cpp)
if (APPLE)
# create bundle on apple compiles
add_executable(main MACOSX_BUNDLE ${SRCS} )
# Set a custom plist file for the app bundle - needed for Mac OS Retina display
set_target_properties(main PROPERTIES MACOSX_BUNDLE_INFO_PLIST ${CMAKE_CURRENT_SOURCE_DIR}/Info.plist)
else()
# the WIN32 is needed for Windows in order for it to look for WinMain
# instead of the main function. This is ignored on other systems,
# so it works on all platforms
add_executable(main WIN32 ${SRCS})
endif()
target_link_libraries(main PRIVATE ${wxWidgets_LIBRARIES})
/external/CMAkeLists.txt
add_subdirectory(wxwidgets)
/external/wxwidgets/CMakeLists.txt
# check if wxWidgets is already installed in the system - using CMake's built in script FindwxWidgets
find_package(wxWidgets QUIET)
if (wxWidgets_FOUND)
message(STATUS "Found preinstalled wxWidgets libraries at ${wxWidgets_LIBRARIES}")
add_library(wxWidgets_external INTERFACE)
else()
message(STATUS "Preinstalled wxWidgets not found.")
message(STATUS "Will download and install wxWidgets in ${STAGED_INSTALL_PREFIX}")
include(ExternalProject)
ExternalProject_Add(wxWidgets_external
GIT_REPOSITORY
https://github.com/wxWidgets/wxWidgets.git
GIT_TAG
3.2
UPDATE_COMMAND
""
CMAKE_ARGS
-DCMAKE_INSTALL_PREFIX=${STAGED_INSTALL_PREFIX}
-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-DCMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}
-DCMAKE_CXX_EXTENSIONS=${CMAKE_CXX_EXTENSIONS}
-DCMAKE_CXX_STANDARD_REQUIRED=${CMAKE_CXX_STANDARD_REQUIRED}
-DwxBUILD_SHARED=OFF
CMAKE_CACHE_ARGS
-DCMAKE_CXX_FLAGS:STRING=${CMAKE_CXX_FLAGS}
TEST_AFTER_INSTALL
0
DOWNLOAD_NO_PROGRESS
1
LOG_CONFIGURE
1
LOG_BUILD
1
LOG_INSTALL
1
)
set(wxWidgets_ROOT_DIR ${STAGED_INSTALL_PREFIX})
file(TO_NATIVE_PATH "${wxWidgets_ROOT_DIR}" wxWidgets_ROOT_DIR)
set(wxWidgets_ROOT_DIR ${wxWidgets_ROOT_DIR} CACHE INTERNAL "wxWidgets installation dir")
set (ENV_WX_CONFIG ${STAGED_INSTALL_PREFIX}/bin/wx-config)
file (TO_NATIVE_PATH "${ENV_WX_CONFIG}" ENV_WX_CONFIG)
set(ENV_WX_CONFIG ${ENV_WX_CONFIG} CACHE INTERNAL "wx-config dir")
endif()
EDIT BELOW
I changed the CMakeLists.txt file to
# check if wxWidgets is already installed in the system - using CMake's built in script FindwxWidgets
find_package(wxWidgets QUIET)
if (wxWidgets_FOUND)
message(STATUS "Found preinstalled wxWidgets libraries at ${wxWidgets_LIBRARIES}")
add_library(wxWidgets INTERFACE)
else()
message(STATUS "Preinstalled wxWidgets not found.")
message(STATUS "Will download and install wxWidgets in ${STAGED_INSTALL_PREFIX}")
include(ExternalProject)
ExternalProject_Add(wxWidgets
GIT_REPOSITORY
https://github.com/wxWidgets/wxWidgets.git
GIT_TAG
master
UPDATE_COMMAND
""
CMAKE_ARGS
-DCMAKE_INSTALL_PREFIX=${STAGED_INSTALL_PREFIX}
-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
-DwxBUILD_SHARED=OFF
CMAKE_CACHE_ARGS
TEST_AFTER_INSTALL
0
DOWNLOAD_NO_PROGRESS
1
LOG_CONFIGURE
1
LOG_BUILD
1
LOG_INSTALL
1
)
set(wxWidgets_ROOT_DIR ${STAGED_INSTALL_PREFIX})
file(TO_NATIVE_PATH "${wxWidgets_ROOT_DIR}" wxWidgets_ROOT_DIR)
set(wxWidgets_ROOT_DIR ${wxWidgets_ROOT_DIR} CACHE INTERNAL "wxWidgets installation dir")
set (ENV_WX_CONFIG ${STAGED_INSTALL_PREFIX}/bin/wx-config)
file (TO_NATIVE_PATH "${ENV_WX_CONFIG}" ENV_WX_CONFIG)
set(ENV_WX_CONFIG ${ENV_WX_CONFIG} CACHE INTERNAL "wx-config dir")
endif()
The build now completes and wxWidgets is 'found' but then goes to fail because wx/wx.h isn't found
-- Found wxWidgets: -L/Users/Greeley/Workspace/Cppspace/Culinoire/build/stage/lib;-pthread;/Users/Greeley/Workspace/Cppspace/Culinoire/build/stage/lib/libwx_osx_cocoau_core-3.2.a;/Users/Greeley/Workspace/Cppspace/Culinoire/build/stage/lib/libwx_baseu-3.2.a;-lwx_baseu-3.2;-lwxjpeg-3.2;-lwxpng-3.2;-lwxtiff-3.2;-framework AudioToolbox;-framework WebKit;/Library/Developer/CommandLineTools/SDKs/MacOSX12.3.sdk/usr/lib/libz.tbd;-lwxregexu-3.2;/Library/Developer/CommandLineTools/SDKs/MacOSX12.3.sdk/usr/lib/libiconv.tbd;-framework CoreFoundation;-framework Security;-framework Carbon;-framework Cocoa;-framework IOKit;-framework QuartzCore (found version "3.2.0")
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/Greeley/Workspace/Cppspace/Culinoire/build/subprojects/Build/Culinoire_core
[ 87%] Performing build step for 'Culinoire_core'
[ 50%] Building CXX object CMakeFiles/main.dir/main.cpp.o
/Users/Greeley/Workspace/Cppspace/Culinoire/src/main.cpp:3:10: fatal error: 'wx/wxprec.h' file not found
#include <wx/wxprec.h>
^~~~~~~~~~~~~
1 error generated.
make[5]: *** [CMakeFiles/main.dir/main.cpp.o] Error 1
make[4]: *** [CMakeFiles/main.dir/all] Error 2
make[3]: *** [all] Error 2
make[2]: *** [subprojects/Stamp/Culinoire_core/Culinoire_core-build] Error 2
make[1]: *** [CMakeFiles/Culinoire_core.dir/all] Error 2
make: *** [all] Error 2
in /src/CMakeLists.txt I added
include(${wxWidgets_USE_FILE})
and changed the project name to reflect my actual project name.
so the entire file looks like this
cmake_minimum_required(VERSION 3.6 FATAL_ERROR)
set(CMAKE_C_COMPILER "/Library/Developer/CommandLineTools/usr/bin/c")
set(CMAKE_CXX_COMPILER "/Library/Developer/CommandLineTools/usr/bin/c++")
project(Culinoire LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(__STDC_WANT_LIB_EXT1__)
# hack for buggy CMake's FindwxWidgets script
if (DEFINED ENV_WX_CONFIG)
set (ENV{WX_CONFIG} ${ENV_WX_CONFIG})
endif()
set(wxWidgets_USE_DEBUG 1)
set(wxWidgets_USE_UNICODE 1)
set(wxWidgets_USE_UNIVERSAL 0)
set(wxWidgets_USE_STATIC 1)
#set(wxWidgets_CONFIG_OPTIONS --toolkit=base --prefix=/usr)
find_package(wxWidgets COMPONENTS core base REQUIRED)
set(SRCS main.cpp)
include(${wxWidgets_USE_FILE})
if (APPLE)
# create bundle on apple compiles
add_executable(main MACOSX_BUNDLE ${SRCS} )
# Set a custom plist file for the app bundle - needed for Mac OS Retina display
set_target_properties(main PROPERTIES MACOSX_BUNDLE_INFO_PLIST ${CMAKE_CURRENT_SOURCE_DIR}/Info.plist)
else()
# the WIN32 is needed for Windows in order for it to look for WinMain
# instead of the main function. This is ignored on other systems,
# so it works on all platforms
add_executable(main WIN32 ${SRCS})
endif()
target_link_libraries(main PRIVATE ${wxWidgets_LIBRARIES})
and my output now is
[main] Building folder: Culinoire
[build] Starting build
[proc] Executing command: /usr/local/bin/cmake --build /Users/Greeley/Workspace/Cppspace/Culinoire/build --config Debug --target all -j 10 --
[build] [ 50%] Built target wxWidgets
[build] [ 56%] Performing build step for 'Culinoire_core'
[main] Changes were detected in CMakeLists.txt but we could not reconfigure the project because another operation is already in progress.
[build] -- Configuring done
[build] -- Generating done
[build] -- Build files have been written to: /Users/Greeley/Workspace/Cppspace/Culinoire/build/subprojects/Build/Culinoire_core
[build] [ 50%] Building CXX object CMakeFiles/main.dir/main.cpp.o
[build] [100%] Linking CXX executable main.app/Contents/MacOS/main
[build] [100%] Built target main
[build] [ 62%] No install step for 'Culinoire_core'
[build] [ 68%] Completed 'Culinoire_core'
[build] [100%] Built target Culinoire_core
[build] Build finished with exit code 0
[cpptools] The build configurations generated do not contain the active build configuration. Using "" for CMAKE_BUILD_TYPE instead of "Debug" to ensure that IntelliSense configurations can be found
I was trying to build GTest from source and then link my target to it using cmake. But I see this error
mygtest % cmake --build build
[ 50%] Building CXX object CMakeFiles/hello_test.dir/mytest.cpp.o
/path/to/test/mygtest/mytest.cpp:1:10: fatal error: 'gtest/gtest.h' file not found
#include <gtest/gtest.h>
^~~~~~~~~~~~~~~
1 error generated.
make[2]: *** [CMakeFiles/hello_test.dir/mytest.cpp.o] Error 1
make[1]: *** [CMakeFiles/hello_test.dir/all] Error 2
make: *** [all] Error 2
My question is what may I miss here?
This is my CMakeList File
cmake_minimum_required(VERSION 3.14)
project(my_project)
set(CMAKE_CXX_STANDARD 14)
find_library(
GTEST_MAIN
gtest_main
PATHS /path/to/googletest/build/lib/
NO_DEFAULT_PATH
)
enable_testing()
add_executable(
hello_test
mytest.cpp
)
target_link_libraries(
hello_test
${GTEST_MAIN}
)
include(GoogleTest)
gtest_discover_tests(hello_test)
What did I try?
Printing the target's link libraries
get_target_property(HELLO_TEST_LIBRARIES hello_test LINK_LIBRARIES)
include(CMakePrintHelpers)
cmake_print_variables(HELLO_TEST_LIBRARIES)
// OUTPUT
-- HELLO_TEST_LIBRARIES="/path/to/googletest/build/lib/libgtest_main.a"
using find_package(GTest) and then linking GTest::gtest works, but I don't want to use a precompiled version -- it seems to cause the error "Unfound Symbol" as mentioned here
I am open to any other better answers, but would post my current solution for those who might be interested.
Thanks #Alex Reinking and #SpacePotatoes for comments. based on what's suggested, inserting the following piece of codes to your CMakeLists.txt would allow you to automate the process of downloading googletest and building from source.
FetchContent_Declare(
googletest
GIT_REPOSITORY https://github.com/google/googletest.git
GIT_TAG main
SUBBUILD_DIR ${PROJECT_BINARY_DIR}/googletest-subbuild
BINARY_DIR ${PROJECT_BINARY_DIR}/googletest-build
SOURCE_DIR ${PROJECT_BINARY_DIR}/googletest-src
)
FetchContent_Populate(
googletest
)
execute_process(COMMAND cmake -S. -B${googletest_BINARY_DIR} WORKING_DIRECTORY ${googletest_SOURCE_DIR})
execute_process(COMMAND cmake --build . WORKING_DIRECTORY ${googletest_BINARY_DIR})
set(GTEST_LIBRARY ${googletest_BINARY_DIR}/lib/libgtest.a)
set(GTEST_INCLUDE_DIR ${googletest_SOURCE_DIR}/googletest/include)
set(GTEST_MAIN_LIBRARY ${googletest_BINARY_DIR}/lib/libgtest_main.a)
find_package(GTest REQUIRED)
Then you might be able to link to your target with
target_link_libraries(<target> GTest::gtest_main)
I am trying to build a simple project using SDL and SDL_image. Both are added as submodules.
On Windows it compiles without issues. Under WSL (Ubuntu 20.04) I get this error:
[ 61%] Building C object submodules/SDL/CMakeFiles/SDL2.dir/src/sensor/dummy/SDL_dummysensor.c.o
[ 62%] Linking C shared library ../../lib/libSDL2-2.0.so
[ 62%] Built target SDL2
Scanning dependencies of target SDL2main
[ 63%] Building C object submodules/SDL/CMakeFiles/SDL2main.dir/src/main/dummy/SDL_dummy_main.c.o
[ 63%] Linking C static library ../../lib/libSDL2main.a
[ 63%] Built target SDL2main
Scanning dependencies of target genfiles
[ 63%] Generating pnglibconf.c
options.awk: bad line (10): com
CMake Error at scripts/gensrc.cmake:68 (message):
Failed to generate pnglibconf.tf5
make[2]: *** [submodules/SDL_image/external/libpng-1.6.37/CMakeFiles/genfiles.dir/build.make:85: submodules/SDL_image/external/libpng-1.6.37/pnglibconf.c] Error 1
make[1]: *** [CMakeFiles/Makefile2:835: submodules/SDL_image/external/libpng-1.6.37/CMakeFiles/genfiles.dir/all] Error 2
make: *** [Makefile:141: all] Error 2
My root CMakeLists.txt:
cmake_minimum_required(VERSION 3.16)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(PROJECT_NAME SDL_Starter_package)
set(PROJECT_TESTS_NAME SDL_Starter_package_tests)
project(${PROJECT_NAME} VERSION 1.0.0)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
include_directories(submodules/googletest/googletest/include/gtest)
include_directories(submodules/SDL/include)
include_directories(submodules/SDL_image)
add_subdirectory(submodules/googletest)
add_subdirectory(submodules/SDL)
add_subdirectory(submodules/SDL_image)
include_directories(src)
add_subdirectory(src)
if(BUILD_TESTS)
enable_testing()
add_subdirectory(tests)
endif()
What am I missing? Is it something because I use WSL?
I'm trying to write a GUI appication (under Ubuntu 18.04) using Qt5 and CMake. I failed to integrate the Qt multimedia module into my project.
My CMakeLists.txt:
cmake_minimum_required(VERSION 3.10)
project(Chess)
#set(CMAKE_PREFIX_PATH "/home/mashplant/Qt5.9.6/5.9.6/gcc_64")
#whether I comment it off or not doesn't have an effect on the result
set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTOUIC ON)
set(CMAKE_AUTORCC ON)
find_package(Qt5 COMPONENTS Widgets Network Multimedia REQUIRED)
set(CMAKE_CXX_STANDARD 11)
include_directories(.)
add_executable(Main Main.cpp
MainWindow.cpp MainWindow.hpp ChessFrame.cpp ChessFrame.hpp resource.qrc)
target_link_libraries(Main Qt5::Widgets Qt5::Network Qt5::Multimedia)
And I get the following warning when I run CMake:
CMake Warning at CMakeLists.txt:18 (add_executable):
Cannot generate a safe runtime search path for target Main because files in
some directories may conflict with libraries in implicit directories:
runtime library [libQt5Widgets.so.5] in /usr/lib/x86_64-linux-gnu may be hidden by files in:
/home/mashplant/Qt5.9.6/5.9.6/gcc_64/lib
runtime library [libQt5Network.so.5] in /usr/lib/x86_64-linux-gnu may be hidden by files in:
/home/mashplant/Qt5.9.6/5.9.6/gcc_64/lib
runtime library [libQt5Gui.so.5] in /usr/lib/x86_64-linux-gnu may be hidden by files in:
/home/mashplant/Qt5.9.6/5.9.6/gcc_64/lib
runtime library [libQt5Core.so.5] in /usr/lib/x86_64-linux-gnu may be hidden by files in:
/home/mashplant/Qt5.9.6/5.9.6/gcc_64/lib
Some of these libraries may not be found correctly.
And when I compile, I get a link error.
/home/mashplant/Qt5.9.6/5.9.6/gcc_64/lib/libQt5Multimedia.so.5.9.6:undefined reference to ‘operator delete(void*, unsigned long)#Qt_5’
collect2: error: ld returned 1 exit status
CMakeFiles/Main.dir/build.make:203: recipe for target 'Main' failed
make[3]: *** [Main] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/Main.dir/all' failed
make[2]: *** [CMakeFiles/Main.dir/all] Error 2
CMakeFiles/Makefile2:79: recipe for target 'CMakeFiles/Main.dir/rule' failed
make[1]: *** [CMakeFiles/Main.dir/rule] Error 2
Makefile:118: recipe for target 'Main' failed
make: *** [Main] Error 2
My best bet is that CMake find different components from different installations of Qt. If that's the case, it should be enough to correct all Qt-related CMake variables to point to correct paths (for example, variables like Qt5Widgets_DIR, Qt5Multimedia_DIR, etc.).