[blam] autogen.sh: rename configure.in to configure.ac to avoid automake warning

[Andrés Aragoneses <aaragoneses src gnome org>]

commit e19655638098a15bd82ac586371fd3f3c25f165e
Author: Andrés G. Aragoneses <knocte gmail com>
Date:   Fri Jun 14 09:56:04 2013 +0200

    autogen.sh: rename configure.in to configure.ac to avoid automake warning
    
    The following warning was being thrown by automake:
    
    automake: warning: autoconf input should be named 'configure.ac', not 'configure.in'
    
    By simply renaming the configure.in script to configure.ac we get rid of
    it, but we also need to rename the $CONFIGURE variable in autogen.sh so
    everything keeps working as expected.

 autogen.sh                   |    2 +-
 configure.in => configure.ac |    0
 2 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index 9fd0ee5..ebe4cc5 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -59,7 +59,7 @@ cd $srcdir
 PROJECT="Blam"
 TEST_TYPE=-f
 FILE=src/Application.cs
-CONFIGURE=configure.in
+CONFIGURE=configure.ac
 
 IE=0
 
diff --git a/configure.in b/configure.ac
similarity index 100%
rename from configure.in
rename to configure.ac