SDL2項目建立在MinGW上但不是Cygwin使用CLion

Question

我在Windows 10上使用SDL2和CLion構建測試項目。名爲HelloSDL的項目基於this tutorial，並創建一個窗口並打印出「Hello World」。我使用here的FindSDL2.cmake和FindSDL2_ttf.cmake腳本。我的CMakeLists.txt文件如下：

cmake_minimum_required(VERSION 3.6) 
project(HelloSDL) 

set(CMAKE_CXX_STANDARD 11) 

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${HelloSDL_SOURCE_DIR}/cmake") 

set(SDL2_PATH "C:\\SDL\\SDL2-2.0.5\\i686-w64-mingw32" CACHE PATH "The location to search for SDL2") 
set(SDL2_TTF_PATH "C:\\SDL\\SDL2_ttf-2.0.14\\i686-w64-mingw32" CACHE PATH "The location to search for SDL2_TTF") 

find_package(SDL2 REQUIRED) 
include_directories(${SDL2_INCLUDE_DIR}) 

find_package(SDL2_ttf REQUIRED) 
include_directories(${SDL2_TTF_INCLUDE_DIR}) 

include_directories(include) 

set(SOURCE_FILES main.cpp) 
add_executable(HelloSDL ${SOURCE_FILES}) 
target_link_libraries(HelloSDL ${SDL2_LIBRARY} ${SDL2_TTF_LIBRARY}) 

該項目構建並運行的MinGW下完全正常，但是當我試圖建立它在Cygwin下，我得到鏈接錯誤：

CMakeFiles/HelloSDL.dir/main.cpp.o: In function `SDL_main': 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:97: undefined reference to `SDL_Init' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:102: undefined reference to `TTF_Init' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:104: undefined reference to `SDL_Quit' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:109: undefined reference to `SDL_CreateWindow' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:113: undefined reference to `TTF_Quit' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:114: undefined reference to `SDL_Quit' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:117: undefined reference to `SDL_CreateRenderer' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:121: undefined reference to `TTF_Quit' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:122: undefined reference to `SDL_Quit' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:133: undefined reference to `TTF_Quit' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:134: undefined reference to `SDL_Quit' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:140: undefined reference to `SDL_QueryTexture' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:148: undefined reference to `SDL_PollEvent' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:156: undefined reference to `SDL_RenderClear' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:160: undefined reference to `SDL_RenderPresent' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:164: undefined reference to `TTF_Quit' 
/cygdrive/c/Users/Kieran/CLionProjects/HelloSDL/main.cpp:165: undefined reference to `SDL_Quit' 

我不沒有很多經驗，但對我來說，這表明它沒有鏈接到SDL2庫。我很困惑，爲什麼當CMake的輸出指示它找到SDL2庫：

-- Found SDL2: C:/SDL/SDL2-2.0.5/i686-w64-mingw32/lib/libSDL2main.a;C:/SDL/SDL2-2.0.5/i686-w64-mingw32/lib/libSDL2.dll.a 

任何幫助將試圖讓它在Cygwin下編譯理解。

Answer 1

首先，您需要使用Cygwin的庫（libSDL2 * -devel），而不是您爲MinGW下載的庫，而且您還需要使用MSYS格式與CMake生成Makefile。

的cmake -G 「MSYS的Makefile」