configure

#! /usr/bin/env python
################################################################################
#	Configure script for TUNA.
#
#	Copyright (C) 2013 Paul Barker, Loughborough University
#
#	This program is free software; you can redistribute it and/or modify
#	it under the terms of the GNU General Public License as published by
#	the Free Software Foundation; either version 2 of the License, or
#	(at your option) any later version.
#
#	This program is distributed in the hope that it will be useful,
#	but WITHOUT ANY WARRANTY; without even the implied warranty of
#	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#	GNU General Public License for more details.
#
#	You should have received a copy of the GNU General Public License
#	along with this program; if not, write to the Free Software
#	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
################################################################################

import os
from unconfig import *

# Describe ourself
name = "tuna"
version = "0.1-pre1"

init(name, version)

# Set default variables
var_set("CFLAGS", "")
var_set("VERBOSITY", "0")
var_set("DEPFLAGS", "-MD")
var_set("PYTHON", "python")
var_set("INSTALL", "install")
var_set("enable-python-bindings", "1")
var_set("enable-docs", "1")
var_set("enable-plots", "1")
var_set("enable-unit-tests", "1")
var_set("enable-integration-tests", "1")
var_set("enable-inline", "1")
var_set("enable-shared", "1")
var_set("enable-optimisation", "1")

parse_cmdline()

# Environment variables which may be brought in
env_list = ("CC", "CCLD", "AR", "CFLAGS", "LDFLAGS", "PYTHON", "INSTALL")
read_envs(env_list)

# Main configuration
require(configure_cc())
require(configure_ccld())
require(configure_ar())
if var_get("enable-ffts"):
	require(configure_pkg("ffts"))
else:
	require(configure_pkg("fftw3f"))
require(configure_pkg("sndfile"))
require(configure_pkg("alsa"))
if var_get("enable-python-bindings"):
	require(configure_pkg("python3"))
	require(configure_swig())
	require(configure_numpy())
if var_get("enable-docs"):
	require(configure_doxygen())
configure_install_dirs()

# Enable compiler optimisation if requested
if var_get("enable-optimisation"):
	var_append("CFLAGS", "-O3")

# Enable gprof profiling if requested
if var_get("enable-gprof"):
	var_append("CFLAGS", "-pg")
	var_append("LDFLAGS", "-pg")

# Check whether ADS1672 input module has been enabled and if so set a flag so
# that this is known within the C source.
if var_get("enable-ads1672"):
	var_append("CFLAGS", "-DENABLE_ADS1672")

# Enable inlines if requested
if var_get("enable-inline"):
	var_append("CFLAGS", "-DENABLE_INLINE")

# Enable TOLs for pulses if requested
if var_get("enable-pulse-tol"):
	var_append("CFLAGS", "-DENABLE_PULSE_TOL")

# Enable FFTS if requested, otherwise FFTW will be used
if var_get("enable-ffts"):
	var_append("CFLAGS", "-DENABLE_FFTS")

# Define NDEBUG if requested
if var_get("enable-ndebug"):
	var_append("CFLAGS", "-DNDEBUG")

# Enable ARM NEON vectorisation if requested
if var_get("enable-arm-neon"):
	var_append("CFLAGS", "-DENABLE_ARM_NEON")

# Append other flags
var_append("CFLAGS", "-Wall -Wextra -pthread")
var_append("CFLAGS", "-std=c99 -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700")
var_append("LDFLAGS", "-pthread")
var_append("LDLIBRARIES", "-lm -lrt")

finalize()
find_srcdir()
write_config_makefile()

# Create empty directory tree
if is_out_of_tree():
	link_makefile()
	os.makedirs("include/tuna", exist_ok=True)
	os.makedirs("bin", exist_ok=True)
	os.makedirs("libtuna", exist_ok=True)
	os.makedirs("test/plot", exist_ok=True)
	os.makedirs("doxy", exist_ok=True)
	os.makedirs("swig/python", exist_ok=True)