fix wrong archive format

.github/workflows/release.yml

@@ -31,7 +31,7 @@ jobs:
     steps:
       - name: Install libtool-bin
         run: |
-          sudo apt-get update && sudo apt-get install -y libtool-bin
+          sudo apt-get update && sudo apt-get install -y libtool-bin llvm
       - uses: actions/checkout@v3
       - uses: erlef/setup-beam@v1
         with:
@@ -154,7 +154,7 @@ jobs:
           # Add repository with the latest git version for action/checkout to properly clone the repo
           add-apt-repository ppa:git-core/ppa
           # We run as root, so sudo is not necessary per se, but some actions (like setup-bazel) make use of it
-          apt-get update && apt-get install -y ca-certificates curl git sudo unzip wget libtool-bin
+          apt-get update && apt-get install -y ca-certificates curl git sudo unzip wget libtool-bin llvm
           # Install GitHub CLI used by our scripts
           curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg | gpg --dearmor -o /usr/share/keyrings/githubcli-archive-keyring.gpg
           echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" | tee /etc/apt/sources.list.d/github-cli.list > /dev/null

extension/static-lib.bzl

@@ -38,12 +38,10 @@ def _cc_static_library_impl(ctx):
 
     lib_paths = [lib.path for lib in libs]
 
-    ar_path = cc_toolchain.ar_executable
-    # FIXME ar_executable returned llvm-lib.exe on my system, but we want llvm-ar.exe
-    ar_path = ar_path.replace("llvm-lib.exe", "llvm-ar.exe")
+    ar_path = "llvm-ar"
 
     ctx.actions.run_shell(
-        command = "\"{0}\" rcs {1} {2} && echo -e 'create {1}\naddlib {1}\nsave\nend' | \"{0}\" -M".format(ar_path, output_lib.path, " ".join(lib_paths)),
+        command = "\"{0}\" rcT {1} {2} && echo -e 'create {1}\naddlib {1}\nsave\nend' | \"{0}\" -M".format(ar_path, output_lib.path, " ".join(lib_paths)),
         inputs = libs + cc_toolchain.all_files.to_list(),
         outputs = [output_lib],
         mnemonic = "ArMerge",