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-rw-r--r--libguile/weaks.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libguile/weaks.c b/libguile/weaks.c
index 277b102b3..d5fc5a060 100644
--- a/libguile/weaks.c
+++ b/libguile/weaks.c
@@ -44,6 +44,7 @@
#include "libguile/_scm.h"
#include "libguile/vectors.h"
+#include "libguile/lang.h"
#include "libguile/validate.h"
#include "libguile/weaks.h"
@@ -144,7 +145,7 @@ SCM_DEFINE (scm_weak_vector, "weak-vector", 0, 0, 1,
res = scm_make_weak_vector (SCM_MAKINUM (i), SCM_UNSPECIFIED);
data = SCM_VELTS (res);
- while (!SCM_NULLP (l))
+ while (!SCM_NULL_OR_NIL_P (l))
{
*data++ = SCM_CAR (l);
l = SCM_CDR (l);