diff --git a/ChangeLog b/ChangeLog
index 086def67b..33c4fc6ae 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2004-07-23  Alexandre Duret-Lutz  <adl@src.lip6.fr>
+
+	* configure.ac: Call AC_LIBTOOL_WIN32_DLL
+	* src/Makefile.am (libspot_la_LDFLAGS): Add -no-undefined.
+
 2004-07-22  Alexandre Duret-Lutz  <adl@src.lip6.fr>
 
 	* src/tgbatest/explicit.test: Do not use `-i', it's not needed
diff --git a/configure.ac b/configure.ac
index 528a9ac2b..0eb8b3159 100644
--- a/configure.ac
+++ b/configure.ac
@@ -38,6 +38,7 @@ AX_CHECK_BUDDY
 AX_CHECK_LBTT
 AX_CHECK_GSPNLIB
 
+AC_LIBTOOL_WIN32_DLL
 AC_PROG_LIBTOOL
 
 CF_GXX_WARNINGS
diff --git a/src/Makefile.am b/src/Makefile.am
index 14b09d8fa..c76f105e6 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -28,7 +28,7 @@ SUBDIRS = misc ltlenv ltlast ltlvisit ltlparse tgba tgbaalgos tgbaparse . \
 
 lib_LTLIBRARIES = libspot.la
 libspot_la_SOURCES =
-libspot_la_LDFLAGS = $(BUDDY_LDFLAGS)
+libspot_la_LDFLAGS = $(BUDDY_LDFLAGS) -no-undefined
 libspot_la_LIBADD =  \
   misc/libmisc.la \
   ltlenv/libltlenv.la \