Upgrade xz to 5.4.1

.gitmodules

@@ -1,4 +1,4 @@
-[submodule "lzma-sys/xz-5.2"]
-	path = lzma-sys/xz-5.2
+[submodule "lzma-sys/xz-5.4"]
+	path = lzma-sys/xz-5.4
 	url = https://github.com/xz-mirror/xz
-	branch = v5.2
+    branch = v5.4

lzma-sys/build.rs

@@ -24,23 +24,23 @@ fn main() {
 
     let out_dir = env::var("OUT_DIR").unwrap();
     println!("cargo:root={}", out_dir);
-    let include_dir = env::current_dir().unwrap().join("xz-5.2/src/liblzma/api");
+    let include_dir = env::current_dir().unwrap().join("xz-5.4/src/liblzma/api");
     println!("cargo:include={}", include_dir.display());
 
     let mut src_files = [
-        "xz-5.2/src/liblzma/common",
-        "xz-5.2/src/liblzma/lzma",
-        "xz-5.2/src/liblzma/lz",
-        "xz-5.2/src/liblzma/check",
-        "xz-5.2/src/liblzma/delta",
-        "xz-5.2/src/liblzma/rangecoder",
-        "xz-5.2/src/liblzma/simple",
+        "xz-5.4/src/liblzma/common",
+        "xz-5.4/src/liblzma/lzma",
+        "xz-5.4/src/liblzma/lz",
+        "xz-5.4/src/liblzma/check",
+        "xz-5.4/src/liblzma/delta",
+        "xz-5.4/src/liblzma/rangecoder",
+        "xz-5.4/src/liblzma/simple",
     ]
     .iter()
     .flat_map(|dir| read_dir_files(dir))
     .chain(vec![
-        "xz-5.2/src/common/tuklib_cpucores.c".into(),
-        "xz-5.2/src/common/tuklib_physmem.c".into(),
+        "xz-5.4/src/common/tuklib_cpucores.c".into(),
+        "xz-5.4/src/common/tuklib_physmem.c".into(),
     ])
     .collect::<Vec<_>>();
 
@@ -53,15 +53,15 @@ fn main() {
         .files(src_files)
         // all C preproc defines are in `./config.h`
         .define("HAVE_CONFIG_H", "1")
-        .include("xz-5.2/src/liblzma/api")
-        .include("xz-5.2/src/liblzma/lzma")
-        .include("xz-5.2/src/liblzma/lz")
-        .include("xz-5.2/src/liblzma/check")
-        .include("xz-5.2/src/liblzma/simple")
-        .include("xz-5.2/src/liblzma/delta")
-        .include("xz-5.2/src/liblzma/common")
-        .include("xz-5.2/src/liblzma/rangecoder")
-        .include("xz-5.2/src/common")
+        .include("xz-5.4/src/liblzma/api")
+        .include("xz-5.4/src/liblzma/lzma")
+        .include("xz-5.4/src/liblzma/lz")
+        .include("xz-5.4/src/liblzma/check")
+        .include("xz-5.4/src/liblzma/simple")
+        .include("xz-5.4/src/liblzma/delta")
+        .include("xz-5.4/src/liblzma/common")
+        .include("xz-5.4/src/liblzma/rangecoder")
+        .include("xz-5.4/src/common")
         .include(env::current_dir().unwrap());
 
     if !target.ends_with("msvc") {

tests/xz.rs

@@ -8,7 +8,7 @@ use xz2::write;
 
 #[test]
 fn standard_files() {
-    for file in Path::new("lzma-sys/xz-5.2/tests/files").read_dir().unwrap() {
+    for file in Path::new("lzma-sys/xz-5.4/tests/files").read_dir().unwrap() {
         let file = file.unwrap();
         if file.path().extension().and_then(|s| s.to_str()) != Some("xz") {
             continue;
@@ -30,6 +30,14 @@ fn standard_files() {
         if filename.starts_with("bad") || filename.starts_with("unsupported") {
             test_bad(&contents);
         } else {
+            // Ignores `good-1-arm64-lzma2-1.xz` and `good-1-arm64-lzma2-2.xz`
+            // since they uses the ARM64 filter.
+            //
+            // Ignores `good-1-empty-bcj-lzma2.xz` since it has an empty Block
+            // that uses PowerPC BCJ and LZMA2.
+            if filename.contains("arm64") || filename == "good-1-empty-bcj-lzma2.xz" {
+                continue;
+            }
             test_good(&contents);
         }
     }