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#!/usr/bin/env python
from waflib.extras import autowaf as autowaf
import re

# Variables for 'waf dist'
APPNAME = 'eg-amp.lv2'
VERSION = '1.0.0'

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

def options(opt):
    opt.load('compiler_c')
    autowaf.set_options(opt)

def configure(conf):
    conf.load('compiler_c')
    autowaf.configure(conf)
    autowaf.display_header('Amp Configuration')

    if conf.env['MSVC_COMPILER']:
        conf.env.append_unique('CFLAGS', ['-TP', '-MD'])
    else:
        conf.env.append_unique('CFLAGS', '-std=c99')

    if not autowaf.is_child():
        autowaf.check_pkg(conf, 'lv2core', uselib_store='LV2CORE')

    autowaf.display_msg(conf, "LV2 bundle directory", conf.env['LV2DIR'])
    print('')

def build(bld):
    bundle = 'eg-amp.lv2'

    # Make a pattern for shared objects without the 'lib' prefix
    module_pat = re.sub('^lib', '', bld.env['cshlib_PATTERN'])
    module_ext = module_pat[module_pat.rfind('.'):]

    # Build manifest.ttl by substitution (for portable lib extension)
    bld(features     = 'subst',
        source       = 'manifest.ttl.in',
        target       = '%s/%s' % (bundle, 'manifest.ttl'),
        install_path = '${LV2DIR}/%s' % bundle,
        LIB_EXT      = module_ext)

    # Copy other data files to build bundle (build/eg-amp.lv2)
    for i in ['amp.ttl']:
        bld(features     = 'subst',
            is_copy      = True,
            source       = i,
            target       = '%s/%s' % (bundle, i),
            install_path = '${LV2DIR}/%s' % bundle)

    # Use LV2 headers from parent directory if building as a sub-project
    includes = None
    if autowaf.is_child:
        includes = '../..'

    # Build plugin library
    obj = bld(features     = 'c cshlib',
              source       = 'amp.c',
              name         = 'amp',
              target       = '%s/amp' % bundle,
              install_path = '${LV2DIR}/%s' % bundle,
              uselib       = 'LV2CORE',
              includes     = includes)
    obj.env['cshlib_PATTERN'] = module_pat