From 992fc21fb8cf509e83189873d80286cc502e7c8a Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sat, 16 Aug 2003 06:25:29 +0000
Subject: [PATCH] Accept `.' as a separator only in pre-POSIX-200112 mode.

---
 lib/userspec.c   | 3 ++-
 modules/userspec | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/userspec.c b/lib/userspec.c
index 80ace3e237..19443ec912 100644
--- a/lib/userspec.c
+++ b/lib/userspec.c
@@ -51,6 +51,7 @@
 # include <unistd.h>
 #endif
 
+#include "posixver.h"
 #include "xalloc.h"
 #include "xstrtol.h"
 
@@ -179,7 +180,7 @@ parse_user_spec (const char *spec_arg, uid_t *uid, gid_t *gid,
   separator = strchr (spec, ':');
 
   /* If there is no colon, then see if there's a `.'.  */
-  if (separator == NULL)
+  if (separator == NULL && posix2_version () < 200112)
     {
       dot = strchr (spec, '.');
       /* If there's no colon but there is a `.', then first look up the
diff --git a/modules/userspec b/modules/userspec
index 388f6465be..4ad374618c 100644
--- a/modules/userspec
+++ b/modules/userspec
@@ -8,6 +8,7 @@ m4/userspec.m4
 
 Depends-on:
 alloca
+posixver
 xalloc
 xstrtol
 strdup
-- 
2.30.2