Question

我有一个cpp程序，该程序使用SDL2中的SDL_TTF。我使用功能TTF_OpenFont，TTF_RenderText_Solid和TTF_CloseFont。然后，我尝试将Makefile中的代码编译成一个库，以后可以使用dl_open中的<dlfcn.h>加载该库。

这是我的Makefike的样子

NAME = libSnakeSDL.so

SRC = SnakeSDL.cpp
SRC2 = SnakeSDL.cpp main.cpp
CC = LD_LIBRARY_PATH=$$PWD/SDL2/lib g++ -Wall -Wextra -Werror std=c++11

FLAGS =  -L SDL2/lib -lSDL2 -lSDL2main -lSDL2_ttf -lfreetype

all: $(NAME)

$(NAME): fclean
    @ # $(CC) -o snake $(SRC2) -I ../ -I SDL2/include $(FLAGS)
    @  $(CC)  -o $(NAME) -shared -fPIC $(SRC) -I ../ -I SDL2/include $(FLAGS)

clean:
    @rm -fr $(NAME)

fclean : clean

re: fclean all

运行make时出现此错误

/usr/bin/ld: SDL2/lib/libSDL2_ttf.a(SDL_ttf.c.o): relocation R_X86_64_PC32 against symbol `TTF_CloseFont' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: final link failed: Bad value
collect2: error: ld returned 1 exit status
Makefile:25: recipe for target 'libSnakeSDL.so' failed
make: *** [libSnakeSDL.so] Error 1

深入研究了此错误的含义，发现了类似You can't use fPIC on a library that doesn't support fpic的内容，但我对fpic和共享库还不熟悉。如何解决此问题/错误？

创建动态共享库时出现g ++ SDL链接错误-fPIC

0 个答案: