Create llvm-libs split package

pkg.info

@@ -1,6 +1,7 @@
 name: llvm
 description: A collection of modular and reusable compiler and toolchain technologies
 version: 20.1.8
+revision: 2
 url: https://llvm.org
 license: Apache2-with-llvm-exception
 architecture: any
@@ -8,7 +9,9 @@ make_depends: ["cmake","libffi","ncurses","ninja","python3","zlib","zstd"]
 type: source
 split_packages:
   - name: llvm
-    depends: ["libedit","perl"]
+    depends: ["llvm-libs","perl"]
+  - name: llvm-libs
+    depends: ["gcc-libs","libedit","libffi","libxml2","zlib","zstd"]
   - name: clang
     description: C language family frontend for LLVM
     url: https://clang.llvm.org/