1 files changed, 1 insertions, 0 deletions

diff --git a/src/lj_dispatch.h b/src/lj_dispatch.h
index 82708077..362d6202 100644
--- a/src/lj_dispatch.h
+++ b/src/lj_dispatch.h
@@ -107,6 +107,7 @@ typedef struct GG_State {
 #define J2G(J)          (&J2GG(J)->g)
 #define G2J(gl)         (&G2GG(gl)->J)
 #define L2J(L)          (&L2GG(L)->J)
+#define GG_G2J          (GG_OFS(J) - GG_OFS(g))
 #define GG_G2DISP       (GG_OFS(dispatch) - GG_OFS(g))
 #define GG_DISP2G       (GG_OFS(g) - GG_OFS(dispatch))
 #define GG_DISP2J       (GG_OFS(J) - GG_OFS(dispatch))