1. debian/control
Edit ‘debian/control’ file in source directory, remove all ‘Multi-Arch: same’ and ‘Pre-Depends: multiarch-support’.
2. debian/rules
Edit ‘debian/rules’ file in source directory, remove all ‘DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)’ and ‘$(DEB_HOST_MULTIARCH)’.
3. debian/*.install
Replace ‘/lib/*/’ to ‘/lib/’ in these files.
Over!