diff options
Diffstat (limited to 'libguile/weaks.h')
-rw-r--r-- | libguile/weaks.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libguile/weaks.h b/libguile/weaks.h index f9130aed3..cedfbc6c0 100644 --- a/libguile/weaks.h +++ b/libguile/weaks.h @@ -54,6 +54,7 @@ #define SCM_IS_WHVEC_V(X) (SCM_VELTS(X)[-1] == 2) #define SCM_IS_WHVEC_B(X) (SCM_VELTS(X)[-1] == 3) #define SCM_IS_WHVEC_ANY(X) (SCM_VELTS(X)[-1]) +#define SCM_WVECT_GC_CHAIN(X) (SCM_VELTS(X)[-2]) |