DPKG_EXPORT_BUILDFLAGS = 1
-include /usr/share/dpkg/buildflags.mk
+ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
+ NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
+ MAKEFLAGS += -j$(NUMJOBS)
+endif
+
build: build-arch build-indep
build-arch: build-stamp
build-indep: build-stamp