Added hppa 64-bit hack next to sparc64 hack.
diff --git a/Makefile b/Makefile
index eb4f7d0..b7ca021 100644
--- a/Makefile
+++ b/Makefile
@@ -48,6 +48,12 @@
 CFLAGS+=-DIPT_MIN_ALIGN=8 -DKERNEL_64_USERSPACE_32
 endif
 
+# HPPA hack
+ifeq ($(shell uname -m),parisc64)
+# The kernel is 64-bit, even though userspace is 32.
+CFLAGS+=-DIPT_MIN_ALIGN=8 -DKERNEL_64_USERSPACE_32
+endif
+
 ifndef IPT_LIBDIR
 IPT_LIBDIR:=$(LIBDIR)/iptables
 endif