[planner] Migrate from configure.in to configure.ac

[Alexandre Franke <afranke src gnome org>]

commit d6356d5f5db04a792d7f458f471ed727d0a59cc4
Author: Alexandre Franke <alexandre franke gmail com>
Date:   Mon Mar 12 18:53:27 2012 +0100

    Migrate from configure.in to configure.ac
    
    configure.in is obsolete and should not be used anymore

 Makefile.win32               |    2 +-
 autogen.sh                   |    2 +-
 configure.in => configure.ac |    0
 3 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/Makefile.win32 b/Makefile.win32
index df631f5..d4e6401 100644
--- a/Makefile.win32
+++ b/Makefile.win32
@@ -5,7 +5,7 @@
 SUBDIRS=docs libplanner src po
 INSTALLERTMP = installer/tmp
 
-VERSION := `sed <configure.in -n 's/AM_INIT_AUTOMAKE[^,]*, *\([^)]*\))/\1/p'`
+VERSION := `sed <configure.ac -n 's/AM_INIT_AUTOMAKE[^,]*, *\([^)]*\))/\1/p'`
 
 ifeq ($(DESTDIR),)
 export DESTDIR=$(HOME)
diff --git a/autogen.sh b/autogen.sh
index b48e854..b949db5 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -7,7 +7,7 @@ test -z "$srcdir" && srcdir=.
 PKG_NAME="Planner"
 REQUIRED_AUTOMAKE_VERSION=1.9
 
-(test -f $srcdir/configure.in) || {
+(test -f $srcdir/configure.ac) || {
     echo -n "**Error**: Directory "\`$srcdir\'" does not look like the"
     echo " top-level $PKG_NAME directory"
     exit 1
diff --git a/configure.in b/configure.ac
similarity index 100%
rename from configure.in
rename to configure.ac