--- gforth/configure.in	2012/03/26 16:34:35	1.306
+++ gforth/configure.in	2012/06/21 23:28:00	1.308
@@ -127,6 +127,16 @@ else
   NO_CROSS="#"
 fi])
 
+AC_ARG_WITH(arch,
+	AC_HELP_STRING([--with-arch=<arch>],
+			[  Build gforth binaries with <arch> postfix]),
+[if test "$withval" = "no"; then
+  ARCH=""
+else
+  ARCH=-${withval}
+fi])
+AC_SUBST(ARCH)
+
 #variables mentioned in INSTALL
 AC_ARG_VAR(SH, [The shell])
 AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
@@ -203,6 +213,7 @@ AC_SUBST(engine_fast2)
 AC_SUBST(no_dynamic)
 AC_SUBST(image_i)
 AC_SUBST(signals_o)
+AC_SUBST(mi_prefix)
 
 #this is used to disable some (not generally essential) part of the
 #Makefile that some makes don't grok.  It would be better to test for
@@ -1014,7 +1025,7 @@ if test -z "$GFORTH"; then
 else
   GFORTH_FI=`cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`
   PREFORTH="$GFORTH -i $GFORTH_FI" ;
-  KERNLX_FI1=`echo $GFORTH_FI | sed -e s/lib/share/g -e s/gforth.fi/kernl*.fi/g`
+  KERNLX_FI1=`echo $GFORTH_FI | sed -e s/lib[64]*/share/g -e s/gforth.fi/kernl*.fi/g`
   KERNLX_FI2=`echo $GFORTH_FI | sed -e s/gforth.fi/kernl*.fi/g`
   test -f $KERNLX_FI1 && KERNLX_FI=$KERNLX_FI1
   test -f $KERNLX_FI2 && KERNLX_FI=$KERNLX_FI2