Automake fails

./autogen.sh
./autogen.sh: running `aclocal -I m4'
./autogen.sh: running `libtoolize --copy --force'
libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, `config'.
libtoolize: copying file `config/ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'.
libtoolize: copying file `m4/libtool.m4'
libtoolize: copying file `m4/ltoptions.m4'
libtoolize: copying file `m4/ltsugar.m4'
libtoolize: copying file `m4/ltversion.m4'
libtoolize: copying file `m4/lt~obsolete.m4'
./autogen.sh: running `autoheader'
./autogen.sh: running `automake -c --foreign --add-missing'
automake: warnings are treated as errors
/usr/share/automake-1.12/am/library.am: warning: 'libsbdrizzle.a': linking libraries using a non-POSIX
/usr/share/automake-1.12/am/library.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
sysbench/drivers/drizzle/Makefile.am:17: while processing library 'libsbdrizzle.a'
/usr/share/automake-1.12/am/library.am: warning: 'libsbmysql.a': linking libraries using a non-POSIX
/usr/share/automake-1.12/am/library.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
sysbench/drivers/mysql/Makefile.am:17: while processing library 'libsbmysql.a'
/usr/share/automake-1.12/am/library.am: warning: 'libsboracle.a': linking libraries using a non-POSIX
/usr/share/automake-1.12/am/library.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
sysbench/drivers/oracle/Makefile.am:17: while processing library 'libsboracle.a'
/usr/share/automake-1.12/am/library.am: warning: 'libsbpgsql.a': linking libraries using a non-POSIX
/usr/share/automake-1.12/am/library.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
sysbench/drivers/pgsql/Makefile.am:17: while processing library 'libsbpgsql.a'
/usr/share/automake-1.12/am/library.am: warning: 'libsbscript.a': linking libraries using a non-POSIX
/usr/share/automake-1.12/am/library.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
sysbench/scripting/Makefile.am:23: while processing library 'libsbscript.a'
/usr/share/automake-1.12/am/library.am: warning: 'liblua.a': linking libraries using a non-POSIX
/usr/share/automake-1.12/am/library.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
sysbench/scripting/lua/src/Makefile.am:17: while processing library 'liblua.a'
/usr/share/automake-1.12/am/library.am: warning: 'libsbcpu.a': linking libraries using a non-POSIX
/usr/share/automake-1.12/am/library.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
sysbench/tests/cpu/Makefile.am:17: while processing library 'libsbcpu.a'
/usr/share/automake-1.12/am/library.am: warning: 'libsbfileio.a': linking libraries using a non-POSIX
/usr/share/automake-1.12/am/library.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
sysbench/tests/fileio/Makefile.am:17: while processing library 'libsbfileio.a'
/usr/share/automake-1.12/am/library.am: warning: 'libsbmemory.a': linking libraries using a non-POSIX
/usr/share/automake-1.12/am/library.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
sysbench/tests/memory/Makefile.am:17: while processing library 'libsbmemory.a'
/usr/share/automake-1.12/am/library.am: warning: 'libsbmutex.a': linking libraries using a non-POSIX
/usr/share/automake-1.12/am/library.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
sysbench/tests/mutex/Makefile.am:17: while processing library 'libsbmutex.a'
/usr/share/automake-1.12/am/library.am: warning: 'libsbthreads.a': linking libraries using a non-POSIX
/usr/share/automake-1.12/am/library.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
sysbench/tests/threads/Makefile.am:17: while processing library 'libsbthreads.a'
Can't execute automake

===============
automake --version
automake (GNU automake) 1.12.3
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Tom Tromey <email address hidden>
       and Alexandre Duret-Lutz <email address hidden>.

================

Fix:

--- configure.ac 2012-03-11 07:49:42 +0000
+++ configure.ac 2012-08-20 04:30:17 +0000
@@ -22,6 +22,8 @@
 AC_PROG_CPP
 AM_PROG_CC_C_O

+m4_pattern_allow([AM_PROG_AR])
+AM_PROG_AR
 ACX_USE_SYSTEM_EXTENSIONS

 AC_PROG_LIBTOOL

=======

The fix may not work with older versions of automake (needs to be tested).