我正在尝试编译以下代码：
#include "SDL/SDL.h"
int main(void) {
SDL_Surface *Hello = NULL;
SDL_Surface *Screen = NULL;
SDL_Init( SDL_INIT_EVERYTHING );
return 0;
}
但是碰巧编译器说：
undefined reference to SDL_Init
我不知道为什么会这样。我正在使用Debian Mint和Code :: Blocks。你可以帮帮我吗？
我已经从官方网站下载了sdl库。
编译器正在查找库，但他只是没有找到那些函数。我不知道为什么。功能在文件上。
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
[email protected]
*/
/** @file SDL.h
* Main include header for the SDL library
*/
#ifndef _SDL_H
#define _SDL_H
#include "SDL_main.h"
#include "SDL_stdinc.h"
#include "SDL_audio.h"
#include "SDL_cdrom.h"
#include "SDL_cpuinfo.h"
#include "SDL_endian.h"
#include "SDL_error.h"
#include "SDL_events.h"
#include "SDL_loadso.h"
#include "SDL_mutex.h"
#include "SDL_rwops.h"
#include "SDL_thread.h"
#include "SDL_timer.h"
#include "SDL_video.h"
#include "SDL_version.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** @file SDL.h
* @note As of version 0.5, SDL is loaded dynamically into the application
*/
/** @name SDL_INIT Flags
* These are the flags which may be passed to SDL_Init() -- you should
* specify the subsystems which you will be using in your application.
*/
/*@{*/
#define SDL_INIT_TIMER 0x00000001
#define SDL_INIT_AUDIO 0x00000010
#define SDL_INIT_VIDEO 0x00000020
#define SDL_INIT_CDROM 0x00000100
#define SDL_INIT_JOYSTICK 0x00000200
#define SDL_INIT_NOPARACHUTE 0x00100000 /**< Don't catch fatal signals */
#define SDL_INIT_EVENTTHREAD 0x01000000 /**< Not supported on all OS's */
#define SDL_INIT_EVERYTHING 0x0000FFFF
/*@}*/
/** This function loads the SDL dynamically linked library and initializes
* the subsystems specified by 'flags' (and those satisfying dependencies)
* Unless the SDL_INIT_NOPARACHUTE flag is set, it will install cleanup
* signal handlers for some commonly ignored fatal signals (like SIGSEGV)
*/
extern DECLSPEC int SDLCALL SDL_Init(Uint32 flags);
/** This function initializes specific SDL subsystems */
extern DECLSPEC int SDLCALL SDL_InitSubSystem(Uint32 flags);
/** This function cleans up specific SDL subsystems */
extern DECLSPEC void SDLCALL SDL_QuitSubSystem(Uint32 flags);
/** This function returns mask of the specified subsystems which have
* been initialized.
* If 'flags' is 0, it returns a mask of all initialized subsystems.
*/
extern DECLSPEC Uint32 SDLCALL SDL_WasInit(Uint32 flags);
/** This function cleans up all initialized subsystems and unloads the
* dynamically linked library. You should call it upon all exit conditions.
*/
extern DECLSPEC void SDLCALL SDL_Quit(void);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_H */
如何将其链接到什么？我尝试从SDL文件夹中扩展名为.so和.a的文件。他们都没有做这项工作。
最佳答案
您需要链接您的库。在project-> build options->链接器->其他链接器选项下的code :: blocks编译器中，您需要通过在文本字段中键入-lSDL来链接SDL库。其他任何库都一样。与SDL_image一样，您需要输入-lSDL_image。
备查：
对于SDL GFX，请使用-lSDL_gfx
OpenGl使用：-lGLU && -lGL
OpenGL的DevIL
*按此顺序：
-lIL，
-lILU，
-lILUT
关于c++ - 在Linux上找不到SDL库，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/17846789/