问题描述
我一直在试图弄清为什么CMake没有添加SDL2的静态库。如果我在可执行文件旁边添加SDL2.dll文件,则它确实可以工作。
它运行良好,可以轻松方便地找到标题。
我的CMakeList.txt看起来像这样。相信我,我已经尝试了一切,但显然我做错了。
cmake_minimum_required(VERSION 3.7)
set (CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
set (CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
SET(SDL2_DIR ./lib)
project(SDL2Test)
find_package(SDL2 required)
include_directories(SDL2Test ${SDL2_INCLUDE_Dirs})
add_executable(SDL2Test Main.cpp)
target_link_libraries(SDL2Test ${SDL2_LIBRARIES})
这是sdl2-config.cmake:
set(SDL2_INCLUDE_Dirs "${CMAKE_CURRENT_LIST_DIR}/../include")
# Support both 32 and 64 bit builds
if (${CMAKE_SIZEOF_VOID_P} MATCHES 8)
set(SDL2_LIBRARIES "${CMAKE_CURRENT_LIST_DIR}/x64/SDL2.lib;${CMAKE_CURRENT_LIST_DIR}/x64/SDL2main.lib")
else ()
set(SDL2_LIBRARIES "${CMAKE_CURRENT_LIST_DIR}/x86/SDL2.lib;${CMAKE_CURRENT_LIST_DIR}/x86/SDL2main.lib")
endif ()
string(STRIP "${SDL2_LIBRARIES}" SDL2_LIBRARIES)
这是Main.cpp
#include "SDL.h"
using namespace std;
int main(int argc,char *argv[])
{
SDL_Init(SDL_INIT_VIDEO);
SDL_Window *window = SDL_CreateWindow(
"SDL2Test",SDL_WINDOWPOS_UNDEFINED,640,480,0
);
SDL_Renderer *renderer = SDL_CreateRenderer(window,-1,SDL_RENDERER_SOFTWARE);
SDL_SetRenderDrawColor(renderer,SDL_ALPHA_OPAQUE);
SDL_RenderClear(renderer);
SDL_RenderPresent(renderer);
SDL_Delay(3000);
SDL_DestroyWindow(window);
SDL_Quit();
return 0;
}
解决方法
您的SDL2.lib是导入库,在运行时需要随附的DLL。
要使用静态库(一个与EXE完全链接并且不需要DLL的库),您将需要自己构建SDL2.lib的静态版本。