diff --git a/.gitignore b/.gitignore
index 7b5fe3a..87553f2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,9 @@ lib/Makefile.in
 lib/*.lo
 lib/*.o
 lib/*.la
+*.dll*
+*.dylib
+*.exe
 *.tar.gz
 libtool
 m4/
@@ -24,3 +27,6 @@ tests/*.trs
 tests/*_test
 tests/Makefile
 tests/Makefile.in
+
+# editor temp files
+*.sw[nop]
diff --git a/configure.ac b/configure.ac
index 4915ad9..4d80612 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,6 +4,9 @@ AC_CONFIG_MACRO_DIR([m4])
 AM_INIT_AUTOMAKE([foreign -Wall])
 AM_PROG_AR
 AC_PROG_CXX
-LT_INIT
+LT_INIT([shared win32-dll])
+AC_CANONICAL_HOST
+AS_CASE([$host_os], [*cygwin* | *mingw*], [SIROCCO_LDFLAGS=-no-undefined])
+AC_SUBST(SIROCCO_LDFLAGS)
 AC_CONFIG_FILES([Makefile lib/Makefile tests/Makefile])
 AC_OUTPUT
diff --git a/lib/Makefile.am b/lib/Makefile.am
index ca6f06e..ed33318 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -1,5 +1,5 @@
 lib_LTLIBRARIES = libsirocco.la
 libsirocco_la_SOURCES = icomplex.cpp  interval.cpp $(top_srcdir)/include/list.hpp $(top_srcdir)/include/mp_complex.hpp $(top_srcdir)/include/mp_icomplex.hpp $(top_srcdir)/include/mp_interval.hpp $(top_srcdir)/include/polynomial.hpp $(top_srcdir)/include/sirocco.hpp $(top_srcdir)/include/icomplex.hpp $(top_srcdir)/include/interval.hpp mp_complex.cpp mp_icomplex.cpp mp_interval.cpp polynomial.cpp sirocco.cpp
-libsirocco_la_LDFLAGS = -lm -lmpfr -lgmp
+libsirocco_la_LDFLAGS = $(SIROCCO_LDFLAGS) -lm -lmpfr -lgmp
 AM_CPPFLAGS = -I$(top_srcdir)/include
 include_HEADERS = $(top_srcdir)/include/sirocco.h