Object.hpp
#ifndef OBJECT_HPP
#define OBJECT_HPP
#include <SFML/Graphics.hpp>
using namespace std;
class Object {
private:
sf::Image image;
public:
float x;
float y;
int width;
int height;
sf::Sprite sprite;
virtual void update();
};
#endif
Object.cpp
void Object::update() {
}
这是我的Makefile:
LIBS=-lsfml-graphics -lsfml-window -lsfml-system
all:
@echo "** Building mahgame"
State.o : State.cpp
g++ -c State.cpp
PlayState.o : PlayState.cpp
g++ -c PlayState.cpp
Game.o : Game.cpp
g++ -c Game.cpp
Object.o : Object.cpp
g++ -c Object.cpp
Player.o : Player.cpp
g++ -c Player.cpp
mahgame : Game.o State.o PlayState.o Object.o Player.o
g++ -o mahgame Game.o State.o PlayState.o Object.o Player.o $(LIBS)
#g++ -c "State.cpp" -o State.o
#g++ -c "PlayState.cpp" -o PlayState.o
#g++ -c "Game.cpp" -o Game.o
#g++ -c "Object.hpp" -o Object.o
#g++ -c "Player.hpp" -o Player.o
#g++ -o mahgame Game.o State.o PlayState.o Object.o Player.o $(LIBS)
clean:
@echo "** Removing object files and executable..."
rm -f mahgame
install:
@echo '** Installing...'
cp mahgame /usr/bin
uninstall:
@echo '** Uninstalling...'
rm mahgame
这是我在构建时遇到的错误(构建之后,这是一个链接器错误):
/usr/bin/ld:Object.o: file format not recognized; treating as linker script
/usr/bin/ld:Object.o:1: syntax error
collect2: error: ld returned 1 exit status
make: *** [all] Error 1
知道发生了什么事吗?提前谢谢。
答案 0 :(得分:1)
你有没有机会使用ccache? 我刚刚遇到了一个非常类似的问题,在编译中省略了ccache解决了它。
答案 1 :(得分:0)
makefile的格式如下:
xxx.o : xxx.cpp
g++ -c xxx.cpp
你看起来不像那样。所以,改变你的:
LIBS=.....
[EDIT]
all : mahgame rmerr
rmerr :
rm -f err
[/EDIT]
State.o : State.cpp
g++ -c State.cpp 2>>err
PlayState.o : PlayState.cpp
g++ -c PlayState.cpp 2>>err
.....
mahgame : Game.o State.o .....
g++ -o mahgame Game.o State.o PlayState.o Object.o Player.o $(LIBS) 2>>err
请注意,这些是您的第一步,有更好的方法来编写不包含源文件/目标文件/等的每个细节的makefile。
答案 2 :(得分:0)
你的Makefile看起来很完美,如果有点冗长,并且缺少标题依赖项。我假设shell命令有一个前导制表符。我假设你的构建命令是make mahgame
。
正如您所说,您有一个链接器错误。 Object.o
似乎不是有效的.o
。让编译器重新生成它。
$ rm Object.o
$ make mahgame
g++ -c Object.cpp
g++ -o mahgame Game.o State.o PlayState.o Object.o Player.o...