[libsigc++2] Use tar-ustar instead of tar-pax to ensure OpenBSD compatibility

[Olav Vitters <ovitters src gnome org>]

commit 471d4a5341db13ee471792d31d3d59e53b6c7184
Author: Olav Vitters <olav vitters nl>
Date:   Tue May 24 16:56:19 2011 +0200

    Use tar-ustar instead of tar-pax to ensure OpenBSD compatibility

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2c01966..f779ae6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,7 +25,7 @@ AC_CONFIG_AUX_DIR([build])
 AC_CONFIG_MACRO_DIR([build])
 AC_CONFIG_HEADERS([config.h sigc++config.h])
 
-AM_INIT_AUTOMAKE([1.9 -Wno-portability check-news dist-bzip2 no-define nostdinc tar-pax])
+AM_INIT_AUTOMAKE([1.9 -Wno-portability check-news dist-bzip2 no-define nostdinc tar-ustar])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES])
 AM_MAINTAINER_MODE
 AC_ARG_VAR([ACLOCAL_FLAGS], [aclocal flags, e.g. -I <macro dir>])