运行gstreamer-rs教程时遇libgobject-2.0.0.dylib未加载错误求助

运行gstreamer-rs教程代码时触发错误：

dyld[62967]: Library not loaded:... @rpath/libgobject-2.0.0.dylib '/usr/lib/libgobject-2.0.0.dylib' (no such file, not in dyld cache)

已知libgobject-2.0.dylib实际位于/Library/Frameworks/GStreamer.framework/Versions/1.0/lib目录，项目配置和代码如下：

项目配置（Cargo.toml） #

[package]
name = "gstreamerDemo"
version = "0.1.0"
edition = "2021"

[dependencies]
glib = { git = "https://github.com/gtk-rs/gtk-rs-core" }
gdk = { git = "https://github.com/gtk-rs/gtk3-rs", optional = true }
gtk = { git = "https://github.com/gtk-rs/gtk3-rs", optional = true }

gst = { version = "0.20.2", package = "gstreamer" }

[target.'cfg(target_os = "macos")'.dependencies]
cocoa = "0.24"
objc = "0.2.7"

最小化代码示例 #

#[path = "../common.rs"]
mod tutorials_common;

fn tutorial_main() {
    // Initialize GStreamer
    gst::init().unwrap();
    ...
}

解决方案 #

1. 临时设置环境变量 #

运行程序前，先指定动态库搜索路径：

export DYLD_LIBRARY_PATH=/Library/Frameworks/GStreamer.framework/Versions/1.0/lib:$DYLD_LIBRARY_PATH
export DYLD_FRAMEWORK_PATH=/Library/Frameworks/GStreamer.framework/Versions/1.0:$DYLD_FRAMEWORK_PATH
cargo run

2. 编译时指定rpath（永久生效） #

在Cargo.toml中添加编译配置，让生成的可执行文件自带正确的库搜索路径：

[profile.dev]
rustflags = [
    "-C", "link-arg=-Wl,-rpath,/Library/Frameworks/GStreamer.framework/Versions/1.0/lib",
]

[profile.release]
rustflags = [
    "-C", "link-arg=-Wl,-rpath,/Library/Frameworks/GStreamer.framework/Versions/1.0/lib",
]

3. 统一依赖版本 #

当前配置中glib使用git最新版，而gstreamer是0.20.2版本，版本不匹配可能导致链接逻辑异常。将glib改为对应版本：

[dependencies]
glib = "0.20.0"  # 与gstreamer 0.20.2版本匹配
gst = { version = "0.20.2", package = "gstreamer" }
# 其他依赖保持不变

验证步骤 #

先确认库文件存在：

ls /Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgobject-2.0.0.dylib

确认文件存在后再执行上述解决方案。

内容的提问来源于stack exchange，提问作者royB