reiserfslib: add basic extended attribute helpers

Signed-off-by: Jeff Mahoney <jeffm@suse.com>

reiserfscore/Makefile.am

@@ -2,7 +2,7 @@ lib_LTLIBRARIES = libreiserfscore.la
 
 libreiserfscore_la_SOURCES = do_balan.c fix_node.c hashes.c ibalance.c \
 			     lbalance.c prints.c stree.c node_formats.c \
-			     reiserfslib.c bitmap.c journal.c includes.h
+			     reiserfslib.c bitmap.c journal.c xattr.c includes.h
 libreiserfscore_la_LIBADD = ../lib/libmisc.la
 
 pkgconfigdir = $(libdir)/pkgconfig