Add libiconv,libssh2,libxml2,xz

config/pkg/lib/xz.yml

@@ -0,0 +1,20 @@
+xz:
+  type: library
+  artifact:
+    source:
+      type: ghrel
+      repo: tukaani-project/xz
+      match: xz.+\.tar\.xz
+      prefer-stable: true
+    binary: hosted
+    metadata:
+      license-files: [COPYING]
+      license: 0BSD
+  depends@unix:
+    - libiconv
+  headers@unix:
+    - lzma
+  static-libs@unix:
+    - liblzma.a
+  pkg-configs:
+    - liblzma