我正在关注这个post构建并安装 cairo。
但是，我遇到了以下错误:
Error 277 error LNK2019: unresolved external symbol __cairo_path_fixed_stroke_to_traps referenced in function __cairo_traps_compositor_stroke C:\gtk_compilation\cairo\cairo-1.12.18\msvc\vs10\cairo-traps-compositor.obj cairo
安装指南说我需要关闭整个程序优化
我使用 /GL- 编译器标志执行此操作，但仍然无法解决该问题。
以下是 C:\gtk_compilation\cairo\cairo-1.12.18\msvc\vs10\cairo-traps-compositor.c 文件的摘录:
cairo_int_status_t (*func) (const cairo_path_fixed_t *path,
const cairo_stroke_style_t *stroke_style,
const cairo_matrix_t *ctm,
const cairo_matrix_t *ctm_inverse,
double tolerance,
cairo_traps_t *traps);
composite_traps_info_t info;
unsigned flags;
if (antialias == CAIRO_ANTIALIAS_BEST || antialias == CAIRO_ANTIALIAS_GOOD) {
func = _cairo_path_fixed_stroke_polygon_to_traps;
flags = 0;
} else {
func = _cairo_path_fixed_stroke_to_traps; /* line#2183 */
flags = need_bounded_clip (extents) & ~NEED_CLIP_SURFACE;
}
上述函数在cairoint.h中定义为:
cairo_private cairo_int_status_t
_cairo_path_fixed_stroke_to_traps (const cairo_path_fixed_t *path,
const cairo_stroke_style_t *stroke_style,
const cairo_matrix_t *ctm,
const cairo_matrix_t *ctm_inverse,
double tolerance,
cairo_traps_t *traps);
cairo_private cairo_int_status_t
_cairo_path_fixed_stroke_polygon_to_traps (const cairo_path_fixed_t *path,
const cairo_stroke_style_t *stroke_style,
const cairo_matrix_t *ctm,
const cairo_matrix_t *ctm_inverse,
double tolerance,
cairo_traps_t *traps);
有人可以建议解决此问题的方法吗？
最佳答案
根据 @andlabs 评论，我发现文件 cairo-path-行程-traps.c 未包含在 Visual Studio 项目源中。添加了这个并重建了解决方案 - 瞧!!
关于c++ - 无法解析的外部符号 : __cairo_path_fixed_stroke_to_traps，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33191396/