From 92cdc13dc2511cba41b5a6198300d498e4bfc664 Mon Sep 17 00:00:00 2001
From: scivision <scivision@users.noreply.github.com>
Date: Tue, 21 May 2024 14:42:57 -0400
Subject: [PATCH] ci: add flang

---
 .github/workflows/cmake.yml        | 24 ++++++++++++++++++++++++
 .github/workflows/oneapi-linux.yml |  4 +++-
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index d5d81db..e61aac3 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -3,6 +3,8 @@ name: cmake
 env:
   CTEST_NO_TESTS_ACTION: error
   HOMEBREW_NO_INSTALL_CLEANUP: 1
+  CTEST_PARALLEL_LEVEL: 0
+  CMAKE_BUILD_PARALLEL_LEVEL: 4
 
 on:
   push:
@@ -67,6 +69,28 @@ jobs:
     - run: cmake --workflow --preset release
 
 
+  linux-flang:
+    runs-on: ubuntu-24.04
+    timeout-minutes: 15
+
+    strategy:
+      matrix:
+        clang-version: [18]
+
+    env:
+      CC: clang-${{ matrix.clang-version }}
+      CXX: clang++-${{ matrix.clang-version }}
+      FC: flang-new
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: install Flang
+      run: sudo apt install --no-install-recommends flang
+
+    - run: cmake --workflow --preset default
+
+
   windows:
     runs-on: windows-latest
     timeout-minutes: 10
diff --git a/.github/workflows/oneapi-linux.yml b/.github/workflows/oneapi-linux.yml
index 553cd78..237ec77 100644
--- a/.github/workflows/oneapi-linux.yml
+++ b/.github/workflows/oneapi-linux.yml
@@ -4,6 +4,7 @@ env:
   CTEST_NO_TESTS_ACTION: error
   CMAKE_BUILD_PARALLEL_LEVEL: 4
   CMAKE_BUILD_TYPE: Release
+  CTEST_PARALLEL_LEVEL: 0
 
 on:
   push:
@@ -23,7 +24,8 @@ jobs:
 
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest]
+        os: [ubuntu-latest]
+# Windows takes tens of minutes to install oneAPI
 
     runs-on: ${{ matrix.os }}
     timeout-minutes: 10