Added main.c

.gitea/workflows/ci.yml

@@ -3,7 +3,8 @@ on: [push]
 
 jobs:
   build:
-      runs-on: ubuntu-latest
-      steps:
-        - name: Printing hello
-          run: echo "Hello, "
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: build using gcc
+        run: gcc -Wall -Werror main.c

main.c

@@ -0,0 +1,5 @@
+int main()
+{
+    printf("Halo, Welt!");
+    return 0;
+}