Rename configure.in to configure.ac to make more recent auto*s happy,
and also add the automake option "subdir-objects".  As advisde by
Tromey and Mjw.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13521 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/configure.in b/configure.ac
similarity index 99%
rename from configure.in
rename to configure.ac
index 9b1c702..d32d03b 100644
--- a/configure.in
+++ b/configure.ac
@@ -11,7 +11,7 @@
 AC_INIT([Valgrind],[3.9.0.SVN],[valgrind-users@lists.sourceforge.net])
 AC_CONFIG_SRCDIR(coregrind/m_main.c)
 AC_CONFIG_HEADERS([config.h])
-AM_INIT_AUTOMAKE([foreign])
+AM_INIT_AUTOMAKE([foreign subdir-objects])
 
 AM_MAINTAINER_MODE