#!/usr/bin/env python
from waflib.extras import autowaf as autowaf
from waflib import Options
from waflib import TaskGen
import os

# Version of this package (even if built as a child)
MAJOR = '4'
MINOR = '0'
MICRO = '0'
ZCONVOLVER_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)

# Library version (UNIX style major, minor, micro)
# major increment <=> incompatible changes
# minor increment <=> compatible changes (additions)
# micro increment <=> no interface changes
ZCONVOLVER_LIB_VERSION = '4.0.0'

# Variables for 'waf dist'
APPNAME = 'zita-convolver'
VERSION = ZCONVOLVER_VERSION
I18N_PACKAGE = 'libzita-convolver'

# Mandatory variables
top = '.'
out = 'build'

def options(opt):
    autowaf.set_options(opt)

def configure(conf):
    if conf.is_defined('USE_EXTERNAL_LIBS'):
        autowaf.check_pkg(conf, 'zita-convolver', uselib_store='LIBZCONVOLVER', atleast_version=ZCONVOLVER_LIB_VERSION, mandatory=True)
    else:
        conf.load ('compiler_cxx')
        autowaf.configure(conf)
        autowaf.check_pkg(conf, 'fftw3f', uselib_store='FFTW3F', mandatory=True)

def build(bld):
    if bld.is_defined('USE_EXTERNAL_LIBS'):
        return

    obj = bld.stlib(features = 'cxx cxxstlib', source = 'zita-convolver.cc')
    obj.cxxflags        = [ '-fPIC', '-O3', '-ffast-math', '-funroll-loops' ]
    obj.export_includes = ['.']
    obj.includes        = ['.']
    obj.name            = 'zita-convolver'
    obj.target          = 'zita-convolver'
    obj.vnum            = ZCONVOLVER_LIB_VERSION
    obj.install_path    = bld.env['LIBDIR']
    obj.uselib          = 'FFTW3F'
    obj.defines         = [ 'PACKAGE="' + I18N_PACKAGE + '"', 'ENABLE_VECTOR_MODE', '_POSIX_PTHREAD_SEMANTICS', '_REENTRANT' ]

def shutdown():
    autowaf.shutdown()