-DEB_BUILD_ARCH_OS ?= $(shell dpkg-architecture -qDEB_BUILD_ARCH_OS)
-DEB_BUILD_ARCH_CPU ?= $(shell dpkg-architecture -qDEB_BUILD_ARCH_CPU)
+export DEB_BUILD_MAINT_OPTIONS = hardening=+all
+DPKG_EXPORT_BUILDFLAGS = 1
+include /usr/share/dpkg/buildflags.mk
+
+DEB_BUILD_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
+DEB_HOST_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)