[longomatch] Add ObjectiveC support in configure.ac. We need it for libcesarplayer .mm files

[Andoni Morales Alastruey <amorales src gnome org>]

commit 3faab6fc6341118676721c28312dde1b7b162bad
Author: Julien Moutte <julien fluendo com>
Date:   Thu Sep 11 12:27:03 2014 -0700

    Add ObjectiveC support in configure.ac. We need it for libcesarplayer .mm files

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index f365ba4..110bf25 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,7 +10,7 @@ AC_CONFIG_MACRO_DIR([build/m4])
 AC_SUBST([ACLOCAL_AMFLAGS], ["-I build/m4/shamrock \${ACLOCAL_FLAGS}"])
 
 AC_PROG_CC
-
+AC_PROG_OBJCXX
 AM_PROG_LIBTOOL
 
 dnl pkg-config