[PATCH] update configure.ac to autoconf 2.61

[Felix Zielcke <fzielcke@z-51.de>]

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Attached patch is generated via `autoupdate --force' from autoconf 2.61
a svn-diff after ./autogen.sh doestn't show anything more, because
the ./configure script in SVN is already generated with autoconf 2.61.

autoconf 2.61 is dated 17.11.2006 on ftp.gnu.org

Debian etch + lenny have autoconf 2.61
etch has been released 8th April 2007
Ubuntu has it since feisty which has been released 19th April 2007

I haven't checked the others but I think this is recent enough for the
configure.ac (remember it's generated by ./autogen.sh anyway)

Yes I really want to get rid of old stuff and if you even only need to
call `autoupdate --force' ;)

Debian experimental has autoconf 2.62 which I normally use, there is
some other stuff deprecated and so changed by `autoupdate' but I'll
leave that for the future.

-- 
Felix Zielcke

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2008-09-03  Felix Zielcke  <fzielcke@z-51.de>

	* configure.ac (AC_INIT): Quote version number.
	(AC_PREREQ): Bumped to 2.61.
	(AC_TRY_COMPILE): Replace deprecated macro with ..
	(AC_COMPILE_IFELSE): ... this.

Index: configure.ac
===================================================================
--- configure.ac	(Revision 1845)
+++ configure.ac	(Arbeitskopie)
@@ -31,8 +31,8 @@ dnl (such as TARGET_CC, TARGET_CFLAGS, e
 dnl type.
 
 
-AC_INIT(GRUB, 1.96, [bug-grub@gnu.org])
-AC_PREREQ(2.53)
+AC_INIT([GRUB],[1.96],[bug-grub@gnu.org])
+AC_PREREQ(2.61)
 AC_CONFIG_SRCDIR([include/grub/dl.h])
 AC_CONFIG_HEADER([config.h])
 
@@ -266,7 +266,7 @@ if test "x$TARGET_CFLAGS" = x; then
   # optimization flags.
   AC_CACHE_CHECK([whether optimization for size works], grub_cv_cc_Os, [
     CFLAGS=-Os
-    AC_TRY_COMPILE(, , grub_cv_cc_Os=yes, grub_cv_cc_Os=no)
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[grub_cv_cc_Os=yes],[grub_cv_cc_Os=no])
   ])
   if test "x$grub_cv_cc_Os" = xyes; then
     TARGET_CFLAGS="$TARGET_CFLAGS -Os"
@@ -278,7 +278,7 @@ if test "x$TARGET_CFLAGS" = x; then
   if test "x$target_cpu" = xi386; then
     AC_CACHE_CHECK([whether -falign-loops works], [grub_cv_cc_falign_loop], [
       CFLAGS="-falign-loops=1"
-      AC_TRY_COMPILE(, , [grub_cv_cc_falign_loop=yes], [grub_cv_cc_falign_loop=no])
+      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[grub_cv_cc_falign_loop=yes],[grub_cv_cc_falign_loop=no])
     ])
 
     if test "x$grub_cv_cc_falign_loop" = xyes; then