build: Request tar-ustar format for distribution

Even though this is the default starting with automake 1.18, we should
be explicit to get uniform behavior.

diff --git a/configure.ac b/configure.ac
index 2a15d720f9db61d408d7f8fdc844dbe538106e06..9bd55e4b2d76b3d5f974ef8cb8c11348906e2bed 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -12,7 +12,7 @@ AM_INIT_AUTOMAKE(
   [foreign]
   [nostdinc]
   [subdir-objects]
-  [no-dist-gzip dist-xz]
+  [tar-ustar no-dist-gzip dist-xz]
 )
 AM_SILENT_RULES([yes])