cargo: remove x11 dependency but use GST_XINITTHREADS

Cargo.lock

@@ -540,7 +540,6 @@ dependencies = [
  "serde",
  "serde_any",
  "simplelog",
- "x11",
  "xml-rs 0.8.4",
 ]
 
@@ -1465,16 +1464,6 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
-[[package]]
-name = "x11"
-version = "2.19.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6dd0565fa8bfba8c5efe02725b14dff114c866724eff2cfd44d76cea74bcd87a"
-dependencies = [
- "libc",
- "pkg-config",
-]
-
 [[package]]
 name = "xml-rs"
 version = "0.6.1"

Cargo.toml

@@ -15,7 +15,6 @@ gettext-rs = {version = "0.7", features = ["gettext-system"]}
 log = "0.4.11"
 once_cell = "1.7.2"
 xml-rs = "0.8.4"
-x11 = { version = "2.18", features = ["xlib"] }
 serde = "1.0"
 serde_any = "0.5"
 simplelog = "0.11.2"

src/common.rs

@@ -10,9 +10,7 @@ use anyhow::Result;
 use gtk::glib;
 
 pub fn init() -> Result<()> {
-    unsafe {
-        x11::xlib::XInitThreads();
-    }
+    std::env::set_var("GST_XINITTHREADS", "1");
     gst::init()?;
     gtk::init()?;
     Ok(())