--- gforth/configure.in	2007/04/01 21:30:26	1.181
+++ gforth/configure.in	2007/04/09 22:36:01	1.182
@@ -86,21 +86,10 @@ dnl   --without-peephole	disables peepho
 dnl 			but slower images.],
 dnl PEEPHOLE="$withval")
 
-AC_ARG_ENABLE(ec,
-	AC_HELP_STRING([--enable-ec],
+AC_ARG_WITH(ec,
+	AC_HELP_STRING([--with-ec=<arch>],
 			[  Build gforth for systems without OS.]),
-	,enable_ec=no)
-if test "$enable_ec" = "yes"; then
-  echo "defining standalone system"
-  AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
-  EC_MODE="true"
-  EC="-ec"
-  engine2=""
-  engine_fast2=""
-  no_dynamic="-DNO_DYNAMIC"
-  image_i="image.i"
-  signals_o=""
-else
+[if test "$withval" = "no"; then
   echo "defining hosted system"
   EC_MODE="false"
   EC=""
@@ -108,8 +97,22 @@ else
   engine_fast2="engine-fast2.o"
   no_dynamic=""
   image_i=""
-  signals_o="signals.o"
-fi
+  signals_o="io.o signals.o"
+else
+  echo "defining standalone system (${withval})"
+  AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
+  EC_MODE="true"
+  EC="-ec"
+  engine2=""
+  engine_fast2=""
+  no_dynamic="-DNO_DYNAMIC"
+  image_i="image.i"
+  if test "$withval" != "yes"; then
+    signals_o="io-${withval}.o"
+  else
+    signals_o="io.o"
+  fi
+fi])
 
 #variables mentioned in INSTALL
 AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])