【发布时间】:2015-12-11 15:20:15
【问题描述】:
在 Windows 10 上的 Clion 中使用此 CMAKE 文件(使用 MinGW 5.0):
cmake_minimum_required(VERSION 3.3)
project(ClionProjects)
# configure the SDL (cf. "SDL2-2.0.3\i686-w64-mingw32\lib\pkgconfig\sdl2.pc")
# C++ flags
set(SDL2_Flags "-mwindows -Wl,--no-undefined -static-libgcc")
# library paths
set(SDL2_ROOT "C:/SDL2/i686-w64-mingw32")
set(SDL2_Includes "${SDL2_ROOT}/include")
set(SDL2_LibDir "${SDL2_ROOT}/lib")
# imported targets for CMake (cf. https://cmake.org/Wiki/CMake/Tutorials/Exporting_and_Importing_Targets)
add_library(SDL2 STATIC IMPORTED)
add_library(SDL2main STATIC IMPORTED)
add_library(SDL2_image STATIC IMPORTED)
add_library(SDL2_ttf STATIC IMPORTED)
set_property(TARGET SDL2 PROPERTY IMPORTED_LOCATION "${SDL2_LibDir}/libSDL2.a")
set_property(TARGET SDL2main PROPERTY IMPORTED_LOCATION "${SDL2_LibDir}/libSDL2main.a")
set_property(TARGET SDL2_image PROPERTY IMPORTED_LOCATION "${SDL2_LibDir}/libSDL2_image.a")
set_property(TARGET SDL2_ttf PROPERTY IMPORTED_LOCATION "${SDL2_LibDir}/libSDL2_ttf.a")
# the libs to link against
# note: as always with gcc, the order is important...
set(SDL2_Libs mingw32 SDL2 SDL2main m SDL2_image SDL2_ttf dinput8 dxguid dxerr8 user32 gdi32 winmm imm32 ole32 oleaut32 shell32 version uuid)
# configure the project
# include the SDL flags
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 ${SDL2_Flags}")
# collect the sources
set(SOURCE_FILES
Kod/Graphics/Graphics.cc
Kod/Graphics/Graphics.h
Kod/Game/Game.cc
Kod/Game/Game.h
Kod/Gameboard/Gameboard.cc
Kod/Gameboard/Gameboard.h
Kod/Meeple/Meeple.cc
Kod/Meeple/Meeple.h
Kod/Player/Player.cc
Kod/Player/Player.h
Kod/Resource/Resource.cc
Kod/Resource/Resource.h
Kod/Tile/Tile.cc
Kod/Tile/Tile.h
Kod/Carcassonne.cc)
# define the target
add_executable(ClionProjects ${SOURCE_FILES} Kod/Carcassonne.cc)
# include the SDL headers
target_include_directories(ClionProjects SYSTEM PRIVATE ${SDL2_Includes})
# link against the SDL (and its dependencies)
target_link_libraries(ClionProjects ${SDL2_Libs})
#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -lSDL2 -lSDL2-image")
#add_executable(ClionProjects ${SOURCE_FILES} Kod/Carcassonne.cc)
#target_link_libraries(ClionProjects SDL2main SDL2 SDL2_image)
我收到此错误:
C:/SDL2/i686-w64-mingw32/lib/libSDL2_ttf.a(SDL_ttf.o): In function `Load_Glyph':
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:609: undefined reference to `FT_Load_Glyph'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:671: undefined reference to `FT_Outline_Transform'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:677: undefined reference to `FT_Get_Glyph'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:678: undefined reference to `FT_Stroker_New'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:694: undefined reference to `FT_Render_Glyph'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:895: undefined reference to `FT_Done_Glyph'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:607: undefined reference to `FT_Get_Char_Index'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:682: undefined reference to `FT_Stroker_Set'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:683: undefined reference to `FT_Glyph_Stroke'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:684: undefined reference to `FT_Stroker_Done'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:686: undefined reference to `FT_Glyph_To_Bitmap'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:688: undefined reference to `FT_Done_Glyph'
C:/SDL2/i686-w64-mingw32/lib/libSDL2_ttf.a(SDL_ttf.o): In function `TTF_Init':
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:340: undefined reference to `FT_Init_FreeType'
C:/SDL2/i686-w64-mingw32/lib/libSDL2_ttf.a(SDL_ttf.o): In function `TTF_CloseFont':
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:927: undefined reference to `FT_Done_Face'
C:/SDL2/i686-w64-mingw32/lib/libSDL2_ttf.a(SDL_ttf.o): In function `TTF_OpenFontIndexRW':
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:432: undefined reference to `FT_Open_Face'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:460: undefined reference to `FT_Set_Char_Size'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:454: undefined reference to `FT_Set_Charmap'
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:484: undefined reference to `FT_Set_Pixel_Sizes'
C:/SDL2/i686-w64-mingw32/lib/libSDL2_ttf.a(SDL_ttf.o): In function `TTF_SizeUTF8':
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:1241: undefined reference to `FT_Get_Kerning'
C:/SDL2/i686-w64-mingw32/lib/libSDL2_ttf.a(SDL_ttf.o): In function `TTF_RenderUTF8_Solid':
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:1429: undefined reference to `FT_Get_Kerning'
C:/SDL2/i686-w64-mingw32/lib/libSDL2_ttf.a(SDL_ttf.o): In function `TTF_RenderUTF8_Shaded':
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:1610: undefined reference to `FT_Get_Kerning'
C:/SDL2/i686-w64-mingw32/lib/libSDL2_ttf.a(SDL_ttf.o): In function `TTF_RenderUTF8_Blended':
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:1780: undefined reference to `FT_Get_Kerning'
C:/SDL2/i686-w64-mingw32/lib/libSDL2_ttf.a(SDL_ttf.o): In function `TTF_RenderUTF8_Blended_Wrapped':
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:2048: undefined reference to `FT_Get_Kerning'
C:/SDL2/i686-w64-mingw32/lib/libSDL2_ttf.a(SDL_ttf.o): In function `TTF_Quit':
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:2196: undefined reference to `FT_Done_FreeType'
C:/SDL2/i686-w64-mingw32/lib/libSDL2_ttf.a(SDL_ttf.o): In function `TTF_GetFontKerningSize':
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:2209: undefined reference to `FT_Get_Kerning'
C:/SDL2/i686-w64-mingw32/lib/libSDL2_ttf.a(SDL_ttf.o): In function `TTF_GlyphIsProvided':
/Users/slouken/release/SDL_ttf/SDL2_ttf-2.0.12-source/foo-x86/../SDL_ttf.c:1138: undefined reference to `FT_Get_Char_Index'
collect2.exe: error: ld returned 1 exit status
CMakeFiles\ClionProjects.dir\build.make:289: recipe for target 'ClionProjects.exe' failed
mingw32-make.exe[3]: *** [ClionProjects.exe] Error 1
mingw32-make.exe[2]: *** [CMakeFiles/ClionProjects.dir/all] Error 2
CMakeFiles\Makefile2:66: recipe for target 'CMakeFiles/ClionProjects.dir/all' failed
CMakeFiles\Makefile2:78: recipe for target 'CMakeFiles/ClionProjects.dir/rule' failed
mingw32-make.exe[1]: *** [CMakeFiles/ClionProjects.dir/rule] Error 2
mingw32-make.exe: *** [ClionProjects] Error 2
makefile:117: recipe for target 'ClionProjects' failed
我已将 SDL2_ttf.dll 添加到 system32 和可执行文件所在的文件夹,将 SDL2_ttf.h 添加到 /include,其中 SDL2 的所有其他 .h 文件都在其中,还将 libSDL2_ttf.a 添加到 /lib。我不明白为什么会出现这些错误...我的标志顺序有问题吗?
【问题讨论】:
-
谷歌搜索未定义符号的名称显示,它们是在
TrueType库中定义的。在您的链接列表中,我没有看到任何看起来像这个库的东西。顺便说一句,与SDL2等3d 方库链接的常用方法是使用find_package(STDL2)。网上有很多关于在简单项目中使用这个命令的教程。 -
我尝试让 find_package(SDL2) 工作,但无济于事。然后我在stackoverflow.com/questions/32857351/linking-sdl2-and-clion 中找到了标记为正确的答案,这本质上是一个复制粘贴。我的项目合作伙伴在 *nix 环境中编译它,并且只使用 -lsdl -lsdl_image -lsdl_ttf 标志,没有 TrueType 库 =S。
-
*nix 环境与 MinGW 不同。 (甚至不同 Linux 发行版上的环境也可能不同)。这就是硬编码库名称不适合可移植项目的原因。
-
但是 SDL_tff 不是 TrueType 库吗? cmakefile 是我一个人的,所以没有什么是硬编码的。
-
我现在已经下载并安装了 FreeType,但我不确定要包含什么库才能访问它。唯一的 .a 文件是 libfreetype.dll.a,是那个吗?
标签: c++ windows cmake mingw sdl-2