--- gforth-0.4.0/configure.in~	Fri Apr 12 23:05:12 2002
+++ gforth-0.4.0/configure.in	Fri Apr 12 23:05:12 2002
@@ -24,7 +24,7 @@
 dnl but don't use automake for creating Makefile.in
 AM_INIT_AUTOMAKE(gforth,0.4.0)
 AM_CONFIG_HEADER(engine/config.h)
-AM_CYGWIN32
+AC_CYGWIN
 
 AC_ARG_ENABLE(force-reg,
 [  --enable-force-reg	  Use explicit register declarations if they appear in