X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fabsolute-header.m4;h=400de55353c79fd0330646e95f976c58373e9a25;hb=a4ed524753cd61bd2c52b9af041eabe83ea1d503;hp=b7276a3b2bc55eb2553873342c9677cf2c0b33ef;hpb=caa70a3d343f8adb6385d3da8a3c4f5ab0333ea7;p=gnulib.git

diff --git a/m4/absolute-header.m4 b/m4/absolute-header.m4
index b7276a3b2..400de5535 100644
--- a/m4/absolute-header.m4
+++ b/m4/absolute-header.m4
@@ -1,4 +1,4 @@
-# absolute-header.m4 serial 15
+# absolute-header.m4 serial 16
 dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -78,11 +78,16 @@ changequote(,)
       gl_dirsep_regex='[/\\]'
       ;;
     *)
-      gl_dirsep_regex='/'
+      gl_dirsep_regex='\/'
       ;;
   esac
-  gl_absolute_header_sed='\|'"${gl_dirsep_regex}"'$1|{
-      s|.*"\(.*'"${gl_dirsep_regex}"'$1\)".*|\1|
+  dnl A sed expression that turns a string into a basic regular
+  dnl expression, for use within "/.../".
+  gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo '$1' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
       s|^/[^/]|//&|
       p
       q