## along with this program. If not, see <http://www.gnu.org/licenses/>.
##
-AC_PREREQ(2.61)
+# We require at least autoconf 2.63 (AC_INIT format changed there).
+AC_PREREQ([2.63])
# libsigrok package version number (NOT the same as shared lib version!).
m4_define([libsigrok_major_version], [0])
AC_CONFIG_MACRO_DIR([autostuff])
AC_CONFIG_AUX_DIR([autostuff])
-AM_INIT_AUTOMAKE([-Wall -Werror foreign std-options])
+# We require at least automake 1.11 (needed for 'silent rules').
+AM_INIT_AUTOMAKE([1.11 -Wall -Werror foreign std-options])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AH_TOP([#ifndef LIBSIGROK_CONFIG_H