Question

我正在尝试让SFML 2.1与MingW一起工作，但这会导致问题。

我在MingW编译器中的编译行是：

g++ -ID:\SFML-2.1\include -LD:\SFML-2.1\lib main.cpp -lsfml-graphics -lsfml-window -lsfml-system

我正在尝试链接.a文件（这是否意味着我应该添加soemthing to eh compile line？）。

代码如下：

#include <SFML/Graphics.hpp>

int main()
{
// create the window
sf::RenderWindow window(sf::VideoMode(800, 600), "My window");

// run the program as long as the window is open
while (window.isOpen())
{
    // check all the window's events that were triggered since the last iteration of      the loop
    sf::Event event;
    while (window.pollEvent(event))
    {
        // "close requested" event: we close the window
        if (event.type == sf::Event::Closed)
            window.close();
    }

    // clear the window with black color
    window.clear(sf::Color::White);

    // draw everything here...
    // window.draw(...);

    // end the current frame
    window.display();
}

return 0;
}

当我尝试编译时，我得到了这些错误：

$ make main
g++ -ID:\SFML-2.1\include -LD:\SFML-2.1\lib main.cpp -lsfml-graphics -lsfml-wind
ow -lsfml-system
C:\Users\Junker\AppData\Local\Temp\ccapaUOM.o:main.cpp:(.text+0xe5): undefined r
eference to `_imp___ZN2sf6StringC1EPKcRKSt6locale'
C:\Users\Junker\AppData\Local\Temp\ccapaUOM.o:main.cpp:(.text+0x10b): undefined
reference to `_imp___ZN2sf9VideoModeC1Ejjj'
C:\Users\Junker\AppData\Local\Temp\ccapaUOM.o:main.cpp:(.text+0x147): undefined
reference to `_imp___ZN2sf12RenderWindowC1ENS_9VideoModeERKNS_6StringEjRKNS_15Co
ntextSettingsE'
C:\Users\Junker\AppData\Local\Temp\ccapaUOM.o:main.cpp:(.text+0x178): undefined
reference to `_imp___ZN2sf6Window5closeEv'
C:\Users\Junker\AppData\Local\Temp\ccapaUOM.o:main.cpp:(.text+0x18d): undefined
reference to `_imp___ZN2sf6Window9pollEventERNS_5EventE'
C:\Users\Junker\AppData\Local\Temp\ccapaUOM.o:main.cpp:(.text+0x1a4): undefined
reference to `_imp___ZN2sf5Color5WhiteE'
C:\Users\Junker\AppData\Local\Temp\ccapaUOM.o:main.cpp:(.text+0x1ae): undefined
reference to `_imp___ZN2sf12RenderTarget5clearERKNS_5ColorE'
C:\Users\Junker\AppData\Local\Temp\ccapaUOM.o:main.cpp:(.text+0x1c0): undefined
reference to `_imp___ZN2sf6Window7displayEv'
C:\Users\Junker\AppData\Local\Temp\ccapaUOM.o:main.cpp:(.text+0x1cf): undefined
reference to `_imp___ZNK2sf6Window6isOpenEv'
C:\Users\Junker\AppData\Local\Temp\ccapaUOM.o:main.cpp:(.text+0x1e7): undefined
reference to `_imp___ZN2sf12RenderWindowD1Ev'
C:\Users\Junker\AppData\Local\Temp\ccapaUOM.o:main.cpp:(.text+0x20e): undefined
reference to `_imp___ZN2sf12RenderWindowD1Ev'
C:\Users\Junker\AppData\Local\Temp\ccapaUOM.o:main.cpp:(.text+0x235): undefined
reference to `_imp___ZN2sf12RenderWindowD1Ev'
c:/mingw/bin/../lib/gcc/mingw32/4.8.1/../../../../mingw32/bin/ld.exe: C:\Users\J
unker\AppData\Local\Temp\ccapaUOM.o: bad reloc address 0xf in section `.text$_ZN
2sf6StringD1Ev[__ZN2sf6StringD1Ev]'
c:/mingw/bin/../lib/gcc/mingw32/4.8.1/../../../../mingw32/bin/ld.exe: final link
failed: Invalid operation
collect2.exe: error: ld returned 1 exit status
make: *** [main] Error 1

我在做错了什么？错误说未定义的引用，这意味着有一些（库？）无法找到。

SFML 2.1软件包附带调试版和发布库（libsfml-s-d）这与它有关吗？

Answer 1

您要开始链接动态库，因此通过向库中添加-s后缀来更改为静态库。

您还需要添加SFML_STATIC预处理器定义

g++ -DSFML_STATIC -ID:\SFML-2.1\include -LD:\SFML-2.1\lib main.cpp -lsfml-graphics-s -lsfml-window-s -lsfml-system-s

至少那时你会链接发布静态库。

Answer 2

F.A.Q.：

描述了整个要求

添加-DSFML_STATIC预处理程序标志
使用带有-s后缀的库文件：-lsfml-graphics-s代替-lsfml-graphics，
添加所有需要的静态库：使用图形，窗口和系统模块时，-lopengl32 -lwinmm -lgdi32是最小的。

一个简单的Makefile看起来像这样：

EXE := static.exe
SRC := $(wildcard *.cpp)
OBJ := $(SRC:.cpp=.o)
DEP := $(OBJ:.o=.d)

CPPFLAGS := -Ipath/to/SFML/include -MMD -MP -DSFML_STATIC
CXXFLAGS := -std=c++11 -Wall -W -pedantic
LDFLAGS  := -Lpath/to/SFML/lib
LDLIBS   := -lsfml-graphics-s -lsfml-window-s -lsfml-system-s
LDLIBS   += -lopengl32 -lwinmm -lgdi32

.PHONY: all clean

all: $(EXE)

$(EXE): $(OBJ)
    $(CXX) $(LDFLAGS) $^ $(LDLIBS) -o $@

clean:
    $(RM) $(EXE) $(OBJ) $(DEP)

ifeq "$(MAKECMDGOALS)" ""
-include $(DEP)
endif

要删除控制台，请将-mwindows链接器标记添加到LDFLAGS。

MingW静态库链接 - SFML 2.1

2 个答案: