[llvm] test with libcxx workflow (PR #71836)

[via llvm-commits]

https://github.com/EricWF created https://github.com/llvm/llvm-project/pull/71836

Test please ignore

>From f99287d421c3758bc6764b488f770950a989e775 Mon Sep 17 00:00:00 2001
From: eric <eric at efcs.ca>
Date: Thu, 9 Nov 2023 13:15:02 -0500
Subject: [PATCH] test with libcxx workflow

---
 .../workflows/libcxx-example-workflow.yaml    | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 .github/workflows/libcxx-example-workflow.yaml

diff --git a/.github/workflows/libcxx-example-workflow.yaml b/.github/workflows/libcxx-example-workflow.yaml
new file mode 100644
index 000000000000000..c3a7d3ed20bcd8c
--- /dev/null
+++ b/.github/workflows/libcxx-example-workflow.yaml
@@ -0,0 +1,33 @@
+name: Build and Test libc++
+
+on: pull_request
+
+
+# Comment
+jobs:
+  build:
+    runs-on: libcxx-runners-small
+    steps:
+    - uses: actions/checkout at v4
+      with:
+        fetch-depth: 5
+    - name: Create Paths
+      run: |
+        mkdir build install artifacts
+    - name: Configure
+      run: |
+        cd build
+        cmake -GNinja -DCMAKE_BUILD_TYPE=Release \
+          -DCMAKE_CXX_COMPILER=clang++ \
+          -DCMAKE_C_COMPILER=clang \
+          "-DLLVM_ENABLE_RUNTIMES=libcxx;libcxxabi"\
+          "-DCMAKE_INSTALL_PREFIX=../install" \
+          ../runtimes
+    - name: Build
+      run: |
+        cd build
+        ninja
+    - name: Install
+      run: |
+        cd build
+        ninja install