Finish support for 4th order accuracy.

ABI and API break.

1 files changed, 2 insertions, 0 deletions

diff --git a/common.h b/common.h
index d030ea4..7ecdf01 100644
--- a/common.h
+++ b/common.h
@@ -34,4 +34,6 @@ static inline int64_t gettime(void)
     return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
 }
 
+#define FD_STENCIL_MAX 2
+
 #endif /* MG2D_COMMON_H */