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-rw-r--r--libguile/threads.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/libguile/threads.c b/libguile/threads.c
index aeb0262c9..94a747853 100644
--- a/libguile/threads.c
+++ b/libguile/threads.c
@@ -975,7 +975,7 @@ 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
stack_len = ((SCM_STACKITEM *) (&t) -
(SCM_STACKITEM *) thread->base);
@@ -1022,7 +1022,7 @@ 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
@@ -1261,8 +1261,8 @@ scm_i_thread_sleep_for_gc ()
scm_t_mutex scm_i_critical_section_mutex;
scm_t_rec_mutex scm_i_defer_mutex;
-#ifdef SCM_USE_PTHREAD_THREADS
-#include "libguile/pthread-threads.c"
+#if SCM_USE_PTHREAD_THREADS
+# include "libguile/pthread-threads.c"
#endif
#include "libguile/threads-plugin.c"
@@ -1272,7 +1272,7 @@ void
scm_threads_prehistory ()
{
scm_thread *t;
-#ifdef SCM_USE_PTHREAD_THREADS
+#if SCM_USE_PTHREAD_THREADS
/* Must be called before any initialization of a mutex. */
scm_init_pthread_threads ();
#endif