diff --git a/configure.in b/configure.in
index 1c8e4c11a..0ad186231 100644
--- a/configure.in
+++ b/configure.in
@@ -95,4 +95,18 @@ AC_SUBST(rdynamic)
 
 AC_MSG_RESULT($rdynamic)
 
+AC_MSG_CHECKING("for shared library build flag")
+shared=-shared
+case "${host}" in
+     *-*-cygwin*)
+        shared="-mdll -Wl,--enable-auto-image-base"
+	;;
+esac
+
+AC_SUBST(shared)
+
+AC_MSG_RESULT($shared)
+
+
+
 AC_OUTPUT(Makefile vpi/Makefile ivlpp/Makefile vvm/Makefile driver/Makefile tgt-null/Makefile tgt-stub/Makefile tgt-verilog/Makefile tgt-pal/Makefile)
diff --git a/tgt-null/Makefile.in b/tgt-null/Makefile.in
index 6d9640796..59d50a7ee 100644
--- a/tgt-null/Makefile.in
+++ b/tgt-null/Makefile.in
@@ -16,7 +16,7 @@
 #    59 Temple Place - Suite 330
 #    Boston, MA 02111-1307, USA
 #
-#ident "$Id: Makefile.in,v 1.1 2000/12/02 04:50:32 steve Exp $"
+#ident "$Id: Makefile.in,v 1.2 2000/12/14 23:38:04 steve Exp $"
 #
 #
 SHELL = /bin/sh
@@ -53,16 +53,17 @@ all: null.tgt
 O = null.o
 
 ifeq (@CYGWIN@,yes)
-  TGTLDFLAGS=-Wl,--enable-auto-image-base -L.. -livl
+  TGTLDFLAGS=-L.. -livl
   TGTDEPLIBS=../libivl.a
 else
+  TGTLD=$(CC)
   TGTLDFLAGS=
   TGTDEPLIBS=
 endif
 
 
 null.tgt: $O $(TGTDEPLIBS)
-	$(CC) -shared -o $@ $O $(TGTLDFLAGS)
+	$(CC) @shared@ -o $@ $O $(TGTLDFLAGS)
 
 clean:
 	rm -f *.o dep/*.d
diff --git a/tgt-stub/Makefile.in b/tgt-stub/Makefile.in
index 0d66e4128..0228815f4 100644
--- a/tgt-stub/Makefile.in
+++ b/tgt-stub/Makefile.in
@@ -16,7 +16,7 @@
 #    59 Temple Place - Suite 330
 #    Boston, MA 02111-1307, USA
 #
-#ident "$Id: Makefile.in,v 1.5 2000/11/11 00:51:21 steve Exp $"
+#ident "$Id: Makefile.in,v 1.6 2000/12/14 23:38:04 steve Exp $"
 #
 #
 SHELL = /bin/sh
@@ -53,7 +53,7 @@ all: stub.tgt
 O = stub.o
 
 ifeq (@CYGWIN@,yes)
-  TGTLDFLAGS=-Wl,--enable-auto-image-base -L.. -livl
+  TGTLDFLAGS=-L.. -livl
   TGTDEPLIBS=../libivl.a
 else
   TGTLDFLAGS=
@@ -62,7 +62,7 @@ endif
 
 
 stub.tgt: $O $(TGTDEPLIBS)
-	$(CC) -shared -o $@ $O $(TGTLDFLAGS)
+	$(CC) @shared@ -o $@ $O $(TGTLDFLAGS)
 
 clean:
 	rm -f *.o dep/*.d
diff --git a/tgt-verilog/Makefile.in b/tgt-verilog/Makefile.in
index abbd2ae1c..6592423d3 100644
--- a/tgt-verilog/Makefile.in
+++ b/tgt-verilog/Makefile.in
@@ -16,7 +16,7 @@
 #    59 Temple Place - Suite 330
 #    Boston, MA 02111-1307, USA
 #
-#ident "$Id: Makefile.in,v 1.4 2000/11/11 00:52:42 steve Exp $"
+#ident "$Id: Makefile.in,v 1.5 2000/12/14 23:38:04 steve Exp $"
 #
 #
 SHELL = /bin/sh
@@ -53,7 +53,7 @@ all: verilog.tgt
 O = verilog.o
 
 ifeq (@CYGWIN@,yes)
-  TGTLDFLAGS=-Wl,--enable-auto-image-base -L.. -livl
+  TGTLDFLAGS= -L.. -livl
   TGTDEPLIBS=../libivl.a
 else
   TGTLDFLAGS=
@@ -61,7 +61,7 @@ else
 endif
 
 verilog.tgt: $O $(TGTDEPLIBS)
-	$(CC) -shared -o $@ $O $(TGTLDFLAGS)
+	$(CC) @shared@ -o $@ $O $(TGTLDFLAGS)
 
 clean:
 	rm -f *.o dep/*.d