* m4/absolute-header.m4 (gl_ABSOLUTE_HEADER): Fix POSIX sed portability

glitch reported by Ralf Wildenhues in
<http://lists.gnu.org/archive/html/bug-gnulib/2007-06/msg00114.html>.

diff --git a/ChangeLog b/ChangeLog
index 5c9f9228666022ab8d367956c96a68378c24aa01..e1a54bd145e119f18c9c0685da9a2a4d44ccdb02 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2007-06-12  Paul Eggert  <eggert@cs.ucla.edu>
 
+       * m4/absolute-header.m4 (gl_ABSOLUTE_HEADER): Fix POSIX sed portability
+       glitch reported by Ralf Wildenhues in
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-06/msg00114.html>.
+
        * m4/regex.m4 (gl_REGEX): Catch a bug with [[:alnum:]_-] reported by
        Vin Shelton.
 

diff --git a/m4/absolute-header.m4 b/m4/absolute-header.m4
index c649df0840adadc8282959c9b3e6df6f4337f3b7..5b7a2fc35f08d6bddc2f58eb0a1f887c2f8364a7 100644 (file)
--- a/m4/absolute-header.m4
+++ b/m4/absolute-header.m4
@@ -1,5 +1,5 @@
-# absolute-header.m4 serial 6
-dnl Copyright (C) 2006 Free Software Foundation, Inc.
+# absolute-header.m4 serial 7
+dnl Copyright (C) 2006, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -32,7 +32,12 @@ dnl eval is necessary to expand ac_cpp.
 dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
       AS_VAR_SET(gl_absolute_header,
 [`(eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
-sed -n '\#/]m4_quote(m4_defn([gl_HEADER_NAME]))[#{s#.*"\(.*/]m4_quote(m4_defn([gl_HEADER_NAME]))[\)".*#\1#;s#^/[^/]#//&#;p;q;}'`])
+sed -n '\#/]m4_quote(m4_defn([gl_HEADER_NAME]))[#{
+       s#.*"\(.*/]m4_quote(m4_defn([gl_HEADER_NAME]))[\)".*#\1#
+       s#^/[^/]#//&#
+       p
+       q
+}'`])
     fi
     AS_VAR_POPDEF([ac_header_exists])dnl
     ])dnl