Implement attr, brotli, bzip2 build for unix

config/artifact.yaml

@@ -0,0 +1,33 @@
+attr:
+  source:
+    type: url
+    url: 'https://download.savannah.nongnu.org/releases/attr/attr-2.5.2.tar.gz'
+  source-mirror:
+    type: url
+    url: 'https://mirror.souseiseki.middlendian.com/nongnu/attr/attr-2.5.2.tar.gz'
+  metadata:
+    license-files: ['doc/COPYING.LGPL']
+    license: LGPL-2.1-or-later
+
+brotli:
+  source:
+    type: ghtagtar
+    repo: google/brotli
+    match: 'v1\.\d.*'
+  binary: hosted # 等价于v2的provide-pre-built: true
+  metadata:
+    license-files: ['LICENSE']
+    license: MIT
+
+bzip2:
+  source:
+    type: url
+    url: 'https://dl.static-php.dev/static-php-cli/deps/bzip2/bzip2-1.0.8.tar.gz'
+  source-mirror:
+    type: filelist
+    url: 'https://sourceware.org/pub/bzip2/'
+    regex: '/href="(?<file>bzip2-(?<version>[^"]+)\.tar\.gz)"/'
+  binary: hosted
+  metadata:
+    license-files: ['{registry_root}/src/globals/licenses/bzip2.txt']
+    license: bzip2-1.0.6

config/pkg.lib.yaml

@@ -0,0 +1,21 @@
+attr:
+  type: library
+  static-libs@unix:
+    - libattr.a
+  artifact: attr
+brotli:
+  type: library
+  pkg-configs:
+    - libbrotlicommon
+    - libbrotlidec
+    - libbrotlienc
+  headers:
+    - brotli
+  artifact: brotli
+bzip2:
+  type: library
+  static-libs@unix:
+    - libbz2.a
+  headers:
+    - bzlib.h
+  artifact: bzip2