#! /usr/bin/env python
# encoding: utf-8
# Thomas Nagy, 2006-2010 (ita)

VERSION='0.0.1'
APPNAME='cc_test'

top = '.'

import waflib.Configure
waflib.Configure.autoconfig = True

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

def configure(conf):
	conf.load('compiler_c')

def build(bld):

	bld(rule='echo "int ko = $$RANDOM;" > ${TGT}', target='faa.h', always=True, shell=True, name='z2')
	bld.program(source='a.c main.c', target='foo', includes='.')

# sort the tasks in reverse order to force the 'faa.h' creation in last position
from waflib import Task, Errors, Logs
old = Task.set_file_constraints
def meth(lst):
	try:
		lst.sort(cmp=lambda x, y: cmp(x.__class__.__name__, y.__class__.__name__))
	except:
		lst.sort(key=lambda x: x.__class__.__name__) # python3
	old(lst)
Task.set_file_constraints = meth

def are_implicit_nodes_ready(self):
	"""remove this method if/when the main one is enabled"""
	bld = self.generator.bld
	try:
		cache = bld.dct_implicit_nodes
	except:
		bld.dct_implicit_nodes = cache = {}

	try:
		dct = cache[bld.current_group]
	except KeyError:
		dct = cache[bld.current_group] = {}
		for tsk in bld.cur_tasks:
			for x in tsk.outputs:
				dct[x] = tsk

	modified = False
	for x in bld.node_deps.get(self.uid(), []):
		if x in dct:
			self.run_after.add(dct[x])
			modified = True

	if modified:
		for tsk in self.run_after:
			if not tsk.hasrun:
				Logs.warn('task %r is not ready...', self)
				raise Errors.TaskNotReady('not ready')
Task.Task.are_implicit_nodes_ready = are_implicit_nodes_ready