From abca6549d8ef1fd1fd67fdb3aae468a5cc51ed35 Mon Sep 17 00:00:00 2001
From: Hoshiumi Arata <hoshiumiarata@gmail.com>
Date: Tue, 19 Nov 2024 18:12:57 +0900
Subject: [PATCH] Update coverage workflow to use Clang for compilation

---
 .github/workflows/coverage.yml | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index dc4cda056..13b88fc55 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -8,10 +8,11 @@ jobs:
     runs-on: ubuntu-24.04
     env:
       MRUBY_CONFIG: ci/gcc-clang
-      CC: gcc
-      CXX: g++
-      LD: gcc
+      CC: clang
+      CXX: clang++
+      LD: clang
       CFLAGS: -O0 -g --coverage
+      CXXFLAGS: -O0 -g --coverage
       LDFLAGS: --coverage
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
@@ -29,7 +30,7 @@ jobs:
           {
             echo "# Coverage report"
             echo \`\`\`
-            gcovr -e ".*_test.c" -e ".*/test/.*" -s --html-details -o coverage/ build
+            gcovr --gcov-executable "llvm-cov gcov" -e ".*_test.c" -e ".*/test/.*" -s --html-details -o coverage/ build
             echo \`\`\`
           } > "$GITHUB_STEP_SUMMARY"
       - name: Upload coverage report