[SCM] GNU Autoconf source repository branch, master, updated. v2.63-170-gbd3cd44

[Eric Blake]

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- Log -----------------------------------------------------------------
commit bd3cd44650fdce1c2b02aa86990af193b582131a
Author: Eric Blake <address@hidden>
Date:   Fri Nov 7 08:57:34 2008 -0700

    Use UTF-8 in ChangeLog.
    
    * ChangeLog: Enforce UTF-8 encoding.
    The file was converted from Latin-1 by commit b83aa7.
    
    Signed-off-by: Eric Blake <address@hidden>

commit 7a4705cb7a7952823265a5b7c151076a32e3905f
Author: Eric Blake <address@hidden>
Date:   Thu Nov 6 14:40:47 2008 -0700

    Skip preprocessor check in AC_CHECK_HEADERS_ONCE.
    
    * lib/autoconf/headers.m4 (_AC_HEADERS_EXPANSION): Provide fourth
    argument to speed up check.
    
    Signed-off-by: Eric Blake <address@hidden>

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog               |   16 +++++++++++++++-
 lib/autoconf/headers.m4 |    4 ++--
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 34a61c6..e463e2f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2008-11-07  Eric Blake  <address@hidden>
+
+       * ChangeLog: Enforce UTF-8 encoding.
+
+2008-11-06  Eric Blake  <address@hidden>
+
+       Skip preprocessor check in AC_CHECK_HEADERS_ONCE.
+       * lib/autoconf/headers.m4 (_AC_HEADERS_EXPANSION): Provide fourth
+       argument to speed up check.
+
 2008-11-06  Eric Blake  <address@hidden>
 
        Speed up AC_CHECK_TYPE.
@@ -17952,7 +17962,11 @@
 
        -----
 
-       Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free
+       Local Variables:
+       coding: utf-8
+       End:
+
+       Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free
        Software Foundation, Inc.
 
        Copying and distribution of this file, with or without
diff --git a/lib/autoconf/headers.m4 b/lib/autoconf/headers.m4
index cb1cb9c..6802c38 100644
--- a/lib/autoconf/headers.m4
+++ b/lib/autoconf/headers.m4
@@ -169,7 +169,7 @@ AS_VAR_POPDEF([ac_Header])])# _AC_CHECK_HEADER_MONGREL
 m4_define([_AC_CHECK_HEADER_COMPILE_BODY],
 [  AS_LINENO_PUSH([$[]1])
   AC_CACHE_CHECK([for $[]2], [$[]3],
-                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([$[]4
+                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([$[]4
 @%:@include <$[]2>])],
                                    [AS_VAR_SET([$[]3], [yes])],
                                    [AS_VAR_SET([$[]3], [no])])])
@@ -265,7 +265,7 @@ AC_DEFUN([AC_CHECK_HEADERS_ONCE],
 m4_define([_AC_HEADERS_EXPANSION],
 [
   m4_divert_text([DEFAULTS], [ac_header_list=])
-  AC_CHECK_HEADERS([$ac_header_list])
+  AC_CHECK_HEADERS([$ac_header_list], [], [], [AC_INCLUDES_DEFAULT])
   m4_define([_AC_HEADERS_EXPANSION], [])
 ])
 


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