configure: Generate tar-ustar tarball instead of tar-v7

Some of our paths are too long for tar-v7 at this point but tar-ustar
is supported by essentially everything. So, let's use that.

Signed-off-by: Mate Kukri <mate.kukri@canonical.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

diff --git a/configure.ac b/configure.ac
index 83e3ddf9084520a60599b00763fa21d4cd8a4b04..1036638a965b042b99a222b66f29b72a3a8f1afb 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -53,7 +53,7 @@ save_program_prefix="${program_prefix}"
 AC_CANONICAL_TARGET
 program_prefix="${save_program_prefix}"
 
-AM_INIT_AUTOMAKE([1.11])
+AM_INIT_AUTOMAKE([1.11 tar-ustar])
 AC_PREREQ(2.64)
 AC_CONFIG_SRCDIR([include/grub/dl.h])
 AC_CONFIG_HEADERS([config-util.h])