Merge pull request #313 from ma10/debug-release-wf-20250527_4

Add debugging code.

Author: ma10

.github/workflows/release.yml

@@ -384,6 +384,7 @@ jobs:
         env:
           GITHUB_WORKSPACE: ${{ github.workspace }}
         run: |
+          set -x
           if [ ! -f ./build.mk ]; then
             BUILD_PROCEDURE=0
           else