[gnome-session] [build] Rename configure.in to configure.ac

[Vincent Untz <vuntz src gnome org>]

commit c9aaf778a4ec1eb70be889e59a317548ba28027d
Author: Vincent Untz <vuntz gnome org>
Date:   Wed Sep 8 17:09:42 2010 +0200

    [build] Rename configure.in to configure.ac

 autogen.sh                   |    2 +-
 configure.in => configure.ac |    0
 2 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index 8ba4a66..0251d11 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -7,7 +7,7 @@ test -z "$srcdir" && srcdir=.
 PKG_NAME="GNOME Desktop Session Manager"
 REQUIRED_AUTOMAKE_VERSION=1.9
 
-(test -f $srcdir/configure.in \
+(test -f $srcdir/configure.ac \
   && test -d $srcdir/gnome-session) || {
     echo -n "**Error**: Directory "\`$srcdir\'" does not look like the"
     echo " top-level $PKG_NAME directory"
diff --git a/configure.in b/configure.ac
similarity index 100%
rename from configure.in
rename to configure.ac