我收到了与下面链接中询问的人相同的错误。已经有了答案,但我到底该怎么做?感谢您的帮助如何强制OS X上的_al_mangled_main的“默认”可见性?
https://stackoverflow.com/a/5294039/1333847
EDIT1)这是代码:
#include "allegro5/allegro.h"
#include "allegro5/allegro_image.h"
#include "allegro5/allegro_native_dialog.h"
int main(){
ALLEGRO_DISPLAY *display = NULL;
ALLEGRO_BITMAP *image = NULL;
if(!al_init()) {
al_show_native_message_box(display, "Error", "Error", "Failed to initialize allegro!",
NULL, ALLEGRO_MESSAGEBOX_ERROR);
return 0;
}
if(!al_init_image_addon()) {
al_show_native_message_box(display, "Error", "Error", "Failed to initialize al_init_image_addon!",
NULL, ALLEGRO_MESSAGEBOX_ERROR);
return 0;
}
display = al_create_display(800,600);
if(!display) {
al_show_native_message_box(display, "Error", "Error", "Failed to initialize display!",
NULL, ALLEGRO_MESSAGEBOX_ERROR);
return 0;
}
image = al_load_bitmap("image.png");
if(!image) {
al_show_native_message_box(display, "Error", "Error", "Failed to load image!",
NULL, ALLEGRO_MESSAGEBOX_ERROR);
al_destroy_display(display);
return 0;
}
al_draw_bitmap(image,200,200,0);
al_flip_display();
al_rest(2);
al_destroy_display(display);
al_destroy_bitmap(image);
return 0;
}
这些都是错误的:
Undefined symbols for architecture x86_64:
"_al_show_native_message_box", referenced from:
__al_mangled_main in main.o
"_al_init_image_addon", referenced from:
__al_mangled_main in main.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
EDIT2)使用此代码记录link to a code一切正常
?如果您使用的是5.0.0以上的版本,这应该不成问题。 – Matthew 2012-04-26 22:13:54
实际上我使用的是5.1(不稳定)分支。甚至试过了svn的5(稳定)版本(应该是最新的版本),仍然是一样的 – Markus 2012-04-26 22:15:47
你应该在你的问题中包含你的错误消息的详细信息,以防万一有些不同。 (例如,忘记与-lallegro_main链接) – Matthew 2012-04-26 22:34:54