diff -adNru lsb-3.0-13/debian/rules lsb-3.0-13adb0/debian/rules
--- lsb-3.0-13/debian/rules     2005-09-22 01:01:39.000000000 +0000
+++ lsb-3.0-13adb0/debian/rules 2006-01-04 16:13:42.000000000 +0000
@@ -9,7 +9,15 @@
 # from having to guess our platform (since we know it already)
 DEB_HOST_GNU_TYPE   ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
 DEB_BUILD_GNU_TYPE  ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
-DEB_BUILD_ARCH_CPU  ?= $(shell dpkg-architecture -qDEB_BUILD_ARCH_CPU)
+DEB_BUILD_ARCH_CPU  ?= $(shell dpkg-architecture -qDEB_BUILD_ARCH_CPU 2>/dev/null)
+
+# Take account of old dpkg-architecture output.
+ifeq ($(DEB_BUILD_ARCH_CPU),)
+  DEB_BUILD_ARCH_CPU := $(shell dpkg-architecture -qDEB_BUILD_GNU_CPU)
+  ifeq ($(DEB_BUILD_ARCH_CPU),x86_64)
+    DEB_BUILD_ARCH_CPU := amd64
+  endif
+endif

 ifneq (,$(findstring debug,$(DEB_BUILD_OPTIONS)))
        CFLAGS += -g