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-rw-r--r--libguile/coop-pthreads.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/libguile/coop-pthreads.c b/libguile/coop-pthreads.c
index c7210c95a..b1ba06064 100644
--- a/libguile/coop-pthreads.c
+++ b/libguile/coop-pthreads.c
@@ -895,7 +895,7 @@ scm_threads_mark_stacks (void)
/* Active thread */
/* stack_len is long rather than sizet in order to guarantee
that &stack_len is long aligned */
-#ifdef SCM_STACK_GROWS_UP
+#if SCM_STACK_GROWS_UP
long stack_len = ((SCM_STACKITEM *) (&t) -
(SCM_STACKITEM *) thread->base);
@@ -942,7 +942,7 @@ scm_threads_mark_stacks (void)
else
{
/* Suspended thread */
-#ifdef SCM_STACK_GROWS_UP
+#if SCM_STACK_GROWS_UP
long stack_len = t->top - t->base;
scm_mark_locations (t->base, stack_len);
#else