diff -u pbzip2-1.0.3-orig/debian/rules pbzip2-1.0.3/debian/rules
--- pbzip2-1.0.3-orig/debian/rules
+++ pbzip2-1.0.3/debian/rules
@@ -23,6 +23,8 @@
 	CFLAGS = -Wall -O0
 endif
 
+CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
+
 configure: configure-stamp
 configure-stamp:
 	dh_testdir