Added mu_dbm.[ch]

@@ -3,14 +3,15 @@ noinst_LIBRARIES = libmailutils.a
 
 SUBDIRS = posix
 
-libmailutils_a_SOURCES = basename.c getopt.c getopt1.c md5.c getline.c \
+INCLUDES = -I${top_srcdir}/include 
+libmailutils_a_SOURCES = basename.c getopt.c getopt1.c md5.c mu_dbm.c getline.c \
   xstrdup.c xmalloc.c argcv.c
 
 EXTRA_DIST = alloca.c fnmatch.c setenv.c snprintf.c strchrnul.c strndup.c \
   strnlen.c strtok_r.c strsignal.c xstrtol.c vasprintf.c malloc.c realloc.c \
   fgetpwent.c obstack.c
 
-noinst_HEADERS = argcv.h error.h fnmatch.h getline.h getopt.h md5.h \
+noinst_HEADERS = argcv.h error.h fnmatch.h getline.h getopt.h md5.h mu_dbm.h\
  regex.h snprintf.h xalloc.h xstrtol.h obstack.h
 
 libmailutils_a_LIBADD = @LIBOBJS@ @ALLOCA@