+dnl
+dnl Copyright 2004,2005,2007,2008,2009 Free Software Foundation, Inc.
+dnl
+dnl This file is part of GNU Radio
+dnl
+dnl GNU Radio is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 3, or (at your option)
+dnl any later version.
+dnl
+dnl GNU Radio is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+dnl GNU General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with GNU Radio; see the file COPYING. If not, write to
+dnl the Free Software Foundation, Inc., 51 Franklin Street,
+dnl Boston, MA 02110-1301, USA.
+dnl
+
+
+AC_INIT
+AC_PREREQ(2.57)
+AC_CONFIG_AUX_DIR([.])
+
+AC_CANONICAL_BUILD
+AC_CANONICAL_HOST
+AC_CANONICAL_TARGET
+
+GR_VERSION
+dnl ustar required to have pathnames > 99 chars
+_AM_SET_OPTION([tar-ustar])
+AM_INIT_AUTOMAKE(gr-howto-write-a-block,$RELEASE)
+
+dnl This is kind of non-standard, but it sure shortens up this file :-)
+m4_include([config/gr_standalone.m4])
+GR_STANDALONE
+
+dnl Check for any libraries you need
+dnl AC_CHECK_LIBRARY
+
+dnl Check for header files you need
+dnl AC_CHECK_HEADERS(fcntl.h limits.h strings.h sys/ioctl.h sys/time.h unistd.h)
+dnl AC_CHECK_HEADERS(sys/mman.h)
+
+dnl Checks for library functions.
+dnl AC_CHECK_FUNCS([])
+
+dnl We pick up the boost cppflags, cxxflags and thread lib via GNURADIO_CORE
+dnl
+dnl If you need additional boost libraries, you'll need to
+dnl uncomment AX_BOOST_BASE, plus some of the following:
+dnl
+dnl calls AC_SUBST(BOOST_CPPFLAGS), AC_SUBST(BOOST_LDFLAGS) and defines HAVE_BOOST
+dnl AX_BOOST_BASE([1.35])
+dnl
+dnl All the rest of these call AC_SUBST(BOOST_<foo>_LIB) and define HAVE_BOOST_<foo>
+dnl
+dnl AX_BOOST_DATE_TIME
+dnl AX_BOOST_FILESYSTEM
+dnl AX_BOOST_IOSTREAMS
+dnl AX_BOOST_PROGRAM_OPTIONS
+dnl AX_BOOST_REGEX
+dnl AX_BOOST_SERIALIZATION
+dnl AX_BOOST_SIGNALS
+dnl AX_BOOST_SYSTEM
+dnl AX_BOOST_TEST_EXEC_MONITOR
+dnl AX_BOOST_UNIT_TEST_FRAMEWORK
+dnl AX_BOOST_WSERIALIZATION
+
+AC_CONFIG_FILES([\
+ Makefile \
+ apps/Makefile \
+ config/Makefile \
+ grc/Makefile \
+ lib/Makefile \
+ python/Makefile \
+ python/run_tests \
+ swig/Makefile \
+ ])
+
+dnl run_tests is created from run_tests.in. Make it executable.
+AC_CONFIG_COMMANDS([run_tests], [chmod +x python/run_tests])
+
+AC_OUTPUT
+
+echo Configured gr-howto-write-a-block release $RELEASE for build.