From 2a75bb4ae0a1e7547e4396fe67825133606cf9d9 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Wed, 12 Apr 2006 07:14:53 +0000
Subject: [PATCH] (extract_regexp): Set re_syntax_options to a value that is
 compatible with what POSIX requires.

---
 src/csplit.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/csplit.c b/src/csplit.c
index 825c9c1960..4544a3ed10 100644
--- a/src/csplit.c
+++ b/src/csplit.c
@@ -1121,6 +1121,7 @@ extract_regexp (int argnum, bool ignore, char const *str)
   p->re_compiled.allocated = 0;
   p->re_compiled.fastmap = p->fastmap;
   p->re_compiled.translate = NULL;
+  re_syntax_options = RE_SYNTAX_POSIX_BASIC & ~RE_CONTEXT_INVALID_DUP;
   err = re_compile_pattern (str + 1, len, &p->re_compiled);
   if (err)
     {
-- 
2.47.2