Test with GCC 15

Author: gschlager

.github/workflows/test-gcc15.yml

@@ -29,7 +29,7 @@ jobs:
         run: git config --global --add safe.directory $GITHUB_WORKSPACE
 
       - name: Install packages
-        run: apt-get install -y libsqlite3-dev
+        run: apt-get install -y libsqlite3-dev gmake
 
       - uses: ruby/setup-ruby@v1
         with:
@@ -40,7 +40,7 @@ jobs:
         run: gcc --version
 
       - name: Compile C-extension
-        run: bundle exec rake compile
+        run: CC=15 bundle exec rake compile
 
       - name: Run tests
         run: bundle exec rake test