From c8765d53a07b73f6abd8a8b76651311fbfca368e Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Fri, 5 Oct 2007 13:52:01 -0700
Subject: [PATCH] * lib/autoconf/general.m4 (_AC_INIT_PARSE_ARGS): Handle "///"
 correctly.

---
 ChangeLog               | 5 +++++
 lib/autoconf/general.m4 | 5 +++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index a5b43aea..666c07f9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2007-10-05  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* lib/autoconf/general.m4 (_AC_INIT_PARSE_ARGS): Handle "///"
+	correctly.
+
 2007-10-05  Jim Meyering  <meyering@redhat.com>
 
 	Avoid makeinfo warnings.
diff --git a/lib/autoconf/general.m4 b/lib/autoconf/general.m4
index 0f8a5dcf..10df3992 100644
--- a/lib/autoconf/general.m4
+++ b/lib/autoconf/general.m4
@@ -904,8 +904,9 @@ do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
   case $ac_val in
-    / | // ) ;;
-    */ ) eval $ac_var='`echo "$ac_val" | sed "s|/*\$||"`' ;;
+    */ )
+      ac_val=`expr "X$ac_val" : 'X\(.*[[^/]]\)' \| "X$ac_val" : 'X\(.*\)'`
+      eval $ac_var=\$ac_val;;
   esac
   # Be sure to have absolute directory names.
   case $ac_val in
-- 
2.47.2