Set automake and autoconf versions required for parallel-tests

Author: am813nt

configure.ac

@@ -1,7 +1,8 @@
+AC_PREREQ([2.62])
 AC_INIT([patchelf], m4_esyscmd([printf $(cat ./version)]))
 AC_CONFIG_SRCDIR([src/patchelf.cc])
 AC_CONFIG_AUX_DIR([build-aux])
-AM_INIT_AUTOMAKE([-Wall -Werror dist-bzip2 foreign color-tests parallel-tests])
+AM_INIT_AUTOMAKE([1.11.1 -Wall -Werror dist-bzip2 foreign color-tests parallel-tests])
 
 AM_PROG_CC_C_O
 AC_PROG_CXX