updated for version 7.4.593
Problem: Crash when searching for "x\{0,90000}". (Dominique Pelle)
Solution: Bail out from the NFA engine when the max limit is much higher
than the min limit.
diff --git a/src/vim.h b/src/vim.h
index ea53e00..e359879 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -1020,6 +1020,7 @@
#define RE_MAGIC 1 /* 'magic' option */
#define RE_STRING 2 /* match in string instead of buffer text */
#define RE_STRICT 4 /* don't allow [abc] without ] */
+#define RE_AUTO 8 /* automatic engine selection */
#ifdef FEAT_SYN_HL
/* values for reg_do_extmatch */