* coop-threads.c: fix various preprocessor usages of new public

symbols to expect 0 or 1 values rather than 1 or undefined.
i.e. change #ifdef to #if, etc.

diff --git a/libguile/coop-threads.c b/libguile/coop-threads.c
index 0cffc06..3765e0b 100644 (file)
--- a/libguile/coop-threads.c
+++ b/libguile/coop-threads.c
@@ -105,7 +105,7 @@ 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 *) (&thread) -
                            (SCM_STACKITEM *) thread->base);
          
@@ -152,7 +152,7 @@ scm_threads_mark_stacks (void)
       else
        {
          /* Suspended thread */
-#ifdef SCM_STACK_GROWS_UP
+#if SCM_STACK_GROWS_UP
          long stack_len = ((SCM_STACKITEM *) (thread->sp) -
                            (SCM_STACKITEM *) thread->base);