build-sys: require automake 1.11.6 or newer

Do not let anyone to create vulnerable dist package.

Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3386

diff --git a/configure.ac b/configure.ac
index 64dc3b8dd9d5bc3e13d0eff20733fe919a6abdcc..ffc9cff9a0e23d66d1f5606b0d98a79eeba3924b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -5,7 +5,10 @@ AC_INIT([mtr],
   [http://www.BitWizard.nl/mtr/])
 AC_CONFIG_SRCDIR([mtr.c])
 AC_CONFIG_AUX_DIR([build-aux])
-AM_INIT_AUTOMAKE([foreign])
+AM_INIT_AUTOMAKE([
+  1.11.6
+  foreign
+])
 
 # --enable-silent-rules
 m4_ifdef([AM_SILENT_RULES],