diff -Naur libbs2b-3.1.0.orig/configure.ac libbs2b-3.1.0/configure.ac
--- libbs2b-3.1.0.orig/configure.ac	2018-08-05 11:25:19.875704349 -0400
+++ libbs2b-3.1.0/configure.ac	2018-08-05 11:31:24.638407134 -0400
@@ -5,12 +5,13 @@
 AC_INIT([libbs2b], [3.1.0], [boris_mikhaylov@users.sourceforge.net])
 AC_CONFIG_AUX_DIR([build-aux])
 AM_INIT_AUTOMAKE([1.10.1 -Wall foreign subdir-objects
-                  dist-zip dist-bzip2 dist-lzma])
+                  dist-zip dist-bzip2 dist-xz])
 AC_CONFIG_SRCDIR([src/bs2b.h])
 
 # Checks for programs.
 AC_PROG_CXX
 AC_PROG_CC
+AC_LIBTOOL_WIN32_DLL
 AC_PROG_LIBTOOL
 PKG_PROG_PKG_CONFIG
 
diff -Naur libbs2b-3.1.0.orig/src/Makefile.am libbs2b-3.1.0/src/Makefile.am
--- libbs2b-3.1.0.orig/src/Makefile.am	2018-08-05 11:25:19.755703594 -0400
+++ libbs2b-3.1.0/src/Makefile.am	2018-08-05 11:25:50.055893843 -0400
@@ -18,7 +18,7 @@
     $(bs2b_HEADERS)
 
 libbs2b_la_LDFLAGS = \
-	-lm -version-info 0:0:0
+	-lm -version-info 0:0:0 -no-undefined
 
 libbs2b_la_SOURCES = \
 	bs2b.c \