--- gforth/configure.in	2005/01/24 18:47:50	1.149
+++ gforth/configure.in	2005/07/31 20:27:41	1.151
@@ -64,6 +64,14 @@ test "$enable_gcc_pr15242_workaround" =
 AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code
 generation on gccs affected by PR15242])
 
+AC_ARG_ENABLE(force-cdiv,
+	AC_HELP_STRING([--enable-force-cdiv],
+		       [  Use the native C division - symmetric - instead of
+		          floored division (default disabled).]),
+	,enable_force_cdiv=no)
+test "$enable_force_cdiv" = "no"||
+  AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance])
+
 AC_SUBST(PROFEXES)
 AC_SUBST(PROFOBJS)
 AC_ARG_ENABLE(prof,
@@ -92,6 +100,7 @@ dnl PEEPHOLE="$withval")
 #variables mentioned in INSTALL
 AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
 AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
+AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).])
 AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
 AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
 AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
@@ -251,6 +260,10 @@ case "$host_cpu" in
 esac
 AC_SUBST(host)
 
+test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
+AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
+		   [number of registers in the default stack cache state for gforth-fast and gforth-native])
+
 if test "${enable_force_ll+set}" = set; then
    ac_includes_default="$ac_includes_default
 #include \"arch/generic/128bit.h\""