diff --git a/THANKS b/THANKS
index 131e1491..9be78887 100644
--- a/THANKS
+++ b/THANKS
@@ -1,3 +1,6 @@
+Nicolas Boullis <nboullis@debian.org>
+  Build issues and Debian 
+
 Kris Verbeeck <airborne@advalvas.be>:
   CDDB library support from libcddb http://libcddb.sourceforge.net
   Gentoo ebuild-file
diff --git a/lib/Makefile.am b/lib/Makefile.am
index fd7ed2e4..163ec3fe 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -1,6 +1,6 @@
-#   $Id: Makefile.am,v 1.18 2004/02/08 04:24:53 rocky Exp $
+#   $Id: Makefile.am,v 1.19 2004/02/09 10:32:35 rocky Exp $
 #
-#    Copyright (C) 2003 Rocky Bernstein <rocky@panix.com>
+#    Copyright (C) 2003, 2004 Rocky Bernstein <rocky@panix.com>
 #
 #    This program is free software; you can redistribute it and/or modify
 #    it under the terms of the GNU General Public License as published by
@@ -16,10 +16,38 @@
 #    along with this program; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #
-####################################################
-# Things to make the libcdio library
-####################################################
+########################################################
+# Things to make the libcdio and libiso9660 libraries
+########################################################
 #
+# From libtool documentation:
+#  1. Start with version information of `0:0:0' for each libtool library.
+#
+#  2. Update the version information only immediately before a public
+#     release of your software.  More frequent updates are unnecessary,
+#     and only guarantee that the current interface number gets larger
+#     faster.
+#
+#  3. If the library source code has changed at all since the last
+#     update, then increment REVISION (`C:R:A' becomes `C:r+1:A').
+#
+#  4. If any interfaces have been added, removed, or changed since the
+#     last update, increment CURRENT, and set REVISION to 0.
+#
+#  5. If any interfaces have been added since the last public release,
+#     then increment AGE.
+#
+#  6. If any interfaces have been removed since the last public release,
+#     then set AGE to 0.
+
+libcdio_la_CURRENT := 0
+libcdio_la_REVISION := 1
+libcdio_la_AGE := 0
+
+libiso9660_la_CURRENT := 0
+libiso9660_la_REVISION := 1
+libiso9660_la_AGE := 0
+
 noinst_HEADERS = cdio_assert.h bytesex.h bytesex_asm.h \
 	cdio_private.h ds.h 
 
@@ -52,9 +80,10 @@ libcdio_sources = \
 	wnaspi32.c \
 	wnaspi32.h
 
-lib_LTLIBRARIES     = libcdio.la libiso9660.la
+lib_LTLIBRARIES    = libcdio.la libiso9660.la
+
 libcdio_la_SOURCES = $(libcdio_sources)
-libcdio_la_LDFLAGS = -no-undefined -version-info 0:1:0
+libcdio_la_LDFLAGS = -version-info $(libcdio_la_CURRENT):$(libcdio_la_REVISION):$(libcdio_la_AGE)
 
 libiso9660_la_SOURCES = \
 	iso9660.c \
@@ -62,6 +91,7 @@ libiso9660_la_SOURCES = \
 	iso9660_fs.c \
 	xa.c
 
-libiso9660_la_LDFLAGS = $(LIBCDIO_LIBS) -no-undefined -version-info 0:1:0
+libiso9660_la_LIBADD = $(LIBCDIO_LIBS)
+libiso9660_la_LDFLAGS = -version-info $(libiso9660_la_CURRENT):$(libiso9660_la_REVISION):$(libiso9660_la_AGE)
 
 INCLUDES = -I$(LIBCDIO_CFLAGS)