我正在尝试测试一些简单的Cairo程序,但是在确定如何包括源文件时遇到了麻烦。我已经安装了开罗库-这只是如何让gcc知道的问题...
我在/ usr / local / include / cairo中安装了.h文件(包括cairo.h)
我在/ usr / local / lib和/ usr / local / lib / cairo中安装了.dylib文件
我应该注意安装的其他组件吗? (我只是做了'make install'安装库)
我试图像这样编译:
$ gcc cairoTest.c -I/usr/local/include/cairo -L/usr/local/lib/
我的cairoTest.c文件开始于:
include <cairo.h>
gcc正在找到cairo.h,但显示以下错误消息。我认为它没有正确链接到.dylib文件,但是我不确定。我仍然不熟悉编译/链接。
gcc cairoTest.c -I/usr/local/include/cairo -L/usr/local/lib/cairo
Undefined symbols for architecture x86_64:
"_cairo_image_surface_create", referenced from:
_main in ccVd9Pet.o
"_cairo_create", referenced from:
_main in ccVd9Pet.o
"_cairo_scale", referenced from:
_main in ccVd9Pet.o
"_cairo_set_line_width", referenced from:
_main in ccVd9Pet.o
"_cairo_set_source_rgb", referenced from:
_main in ccVd9Pet.o
"_cairo_rectangle", referenced from:
_main in ccVd9Pet.o
"_cairo_stroke", referenced from:
_main in ccVd9Pet.o
"_cairo_surface_write_to_png", referenced from:
_main in ccVd9Pet.o
"_cairo_destroy", referenced from:
_main in ccVd9Pet.o
"_cairo_surface_destroy", referenced from:
_main in ccVd9Pet.o
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
make: *** [all] Error 1
要在编译中包含Cairo库,我应该采取什么不同的措施?
谢谢,
最佳答案
尝试编译
gcc -Wall -g cairoTest.c -I/usr/local/include/cairo -L/usr/local/lib/ -lcairo -o cairoTest
(但您可能需要其他库,可能通过
$(pkg-config --cflags --libs cairo)
或类似库)您的文件应以
#include <cairo.h>