MingW 静态库链接 - SFML 2.1.

MingW static library linking - SFML 2.1

本文关键字：SFML 链接 静态 MingW      更新时间：2023-10-16

我正在尝试让SFML 2.1与MingW一起工作，但它引起了问题。

我在 MingW 编译器中的编译行是：

g++ -ID:SFML-2.1include -LD:SFML-2.1lib 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 tot eh 编译行？

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，出现以下错误：

$ make main
g++ -ID:SFML-2.1include -LD:SFML-2.1lib main.cpp -lsfml-graphics -lsfml-wind
ow -lsfml-system
C:UsersJunkerAppDataLocalTempccapaUOM.o:main.cpp:(.text+0xe5): undefined r
eference to `_imp___ZN2sf6StringC1EPKcRKSt6locale'
C:UsersJunkerAppDataLocalTempccapaUOM.o:main.cpp:(.text+0x10b): undefined
reference to `_imp___ZN2sf9VideoModeC1Ejjj'
C:UsersJunkerAppDataLocalTempccapaUOM.o:main.cpp:(.text+0x147): undefined
reference to `_imp___ZN2sf12RenderWindowC1ENS_9VideoModeERKNS_6StringEjRKNS_15Co
ntextSettingsE'
C:UsersJunkerAppDataLocalTempccapaUOM.o:main.cpp:(.text+0x178): undefined
reference to `_imp___ZN2sf6Window5closeEv'
C:UsersJunkerAppDataLocalTempccapaUOM.o:main.cpp:(.text+0x18d): undefined
reference to `_imp___ZN2sf6Window9pollEventERNS_5EventE'
C:UsersJunkerAppDataLocalTempccapaUOM.o:main.cpp:(.text+0x1a4): undefined
reference to `_imp___ZN2sf5Color5WhiteE'
C:UsersJunkerAppDataLocalTempccapaUOM.o:main.cpp:(.text+0x1ae): undefined
reference to `_imp___ZN2sf12RenderTarget5clearERKNS_5ColorE'
C:UsersJunkerAppDataLocalTempccapaUOM.o:main.cpp:(.text+0x1c0): undefined
reference to `_imp___ZN2sf6Window7displayEv'
C:UsersJunkerAppDataLocalTempccapaUOM.o:main.cpp:(.text+0x1cf): undefined
reference to `_imp___ZNK2sf6Window6isOpenEv'
C:UsersJunkerAppDataLocalTempccapaUOM.o:main.cpp:(.text+0x1e7): undefined
reference to `_imp___ZN2sf12RenderWindowD1Ev'
C:UsersJunkerAppDataLocalTempccapaUOM.o:main.cpp:(.text+0x20e): undefined
reference to `_imp___ZN2sf12RenderWindowD1Ev'
C:UsersJunkerAppDataLocalTempccapaUOM.o:main.cpp:(.text+0x235): undefined
reference to `_imp___ZN2sf12RenderWindowD1Ev'
c:/mingw/bin/../lib/gcc/mingw32/4.8.1/../../../../mingw32/bin/ld.exe: C:UsersJ
unkerAppDataLocalTempccapaUOM.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

我做错了什么？ 错误说未定义的引用，这意味着有些东西（库？）找不到。

SFML 2.1 软件包附带了调试和发布库 （libsfml--s-d） 这与它有关吗？

整个要求在常见问题解答中描述：

  1. 添加-DSFML_STATIC预处理器标志，

  2. 使用后缀为 -s ： -lsfml-graphics-s 的库文件，而不是 -lsfml-graphics ，

  3. 添加每个需要的静态库：使用图形、窗口和系统模块时，-lopengl32 -lwinmm -lgdi32是最低要求。

一个简单的 Makefile 如下所示：

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

若要删除控制台，请将 -mwindows 链接器标志添加到 LDFLAGS 。

首先，

您正在链接动态库，因此请通过向库添加 -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-2.1include -LD:SFML-2.1lib main.cpp -lsfml-graphics-s -lsfml-window-s -lsfml-system-s

至少那时您将链接到发布静态库。

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