diff --git a/src/configure.in b/src/configure.in
index 850b81037b982ec82455464a131eaf65bb067ec2..d043adf619807f948ac4a6371960a18c40b24545 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -1,4 +1,4 @@
-AC_REVISION("$Id: configure.in,v 1.841 2004/09/26 15:14:44 marcus Exp $")
+AC_REVISION("$Id: configure.in,v 1.842 2004/09/26 15:49:02 marcus Exp $")
 AC_INIT(interpret.c)
 AC_CONFIG_HEADER(machine.h)
 
@@ -3427,7 +3427,7 @@ if test "x$pike_cv_sys_os" = "xWindows_NT" -o "x$pike_cv_sys_os" = "xAmigaOS"; t
       while read x; do
         pike_cv_initial_stack_size=$x ;
       done <confdefs.out.2
-    ])
+    ], [pike_cv_initial_stack_size=''])
     rm confdefs.out.2 >/dev/null 2>/dev/null || :
   ])
   if test x$pike_cv_initial_stack_size = x ; then