enable transparent LFS

Make sure we use 64-bit filesystem functions everywhere.  This applies not
only to being able to read large files (which generally doesn't apply to
us), but also being able to simply stat them (as they might be using large
inodes).
Signed-off-by: Mike Frysinger <vapier@chromium.org>

Makefile

@@ -32,6 +32,8 @@ ADDLIB+=mpls_ntop.o mpls_pton.o
 CC = gcc
 HOSTCC = gcc
 DEFINES += -D_GNU_SOURCE
+# Turn on transparent support for LFS
+DEFINES += -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
 CCOPTS = -O2
 WFLAGS := -Wall -Wstrict-prototypes  -Wmissing-prototypes
 WFLAGS += -Wmissing-declarations -Wold-style-definition -Wformat=2