Description: Disable parallel build on hppa architecture.
Bug-Debian: http://bugs.debian.org/580824
Origin: http://code.google.com/p/waf/source/browse/tags/waf-1.5.0/playground/serial.py

--- a/.waf-1.5.0-8e39a4c1c16303c1e8f010bf330305f6/wafadmin/Runner.py
+++ b/.waf-1.5.0-8e39a4c1c16303c1e8f010bf330305f6/wafadmin/Runner.py
@@ -143,3 +143,100 @@
 					self.consumers=[TaskConsumer(self)for i in xrange(self.numjobs)]
 		assert(self.count==0 or self.stop)
 
+class Serial(object):
+
+	def __init__(self, bld, j=1):
+		self.manager = bld.task_manager
+		self.outstanding = []
+
+		# progress bar
+		self.total = self.manager.total()
+		self.processed = 0
+		self.error = 0
+
+		self.switchflag = 1 # postpone
+		
+		self.consumers = None
+
+	# warning, this one is recursive ..
+	def get_next(self):
+		if self.outstanding:
+			t = self.outstanding.pop(0)
+			self.processed += 1
+			return t
+
+		# handle case where only one wscript exist
+		# that only install files
+		if not self.manager.groups:
+			return None
+
+		(_, self.outstanding) = self.manager.get_next_set()
+		if not self.outstanding: return None
+
+		return self.get_next()
+
+	def postpone(self, tsk):
+		self.processed -= 1
+		self.switchflag *= -1
+		# this actually shuffle the list
+		if self.switchflag>0: self.outstanding.insert(0, tsk)
+		else:                 self.outstanding.append(tsk)
+
+	def start(self):
+		debug('runner: Serial start called')
+		while 1:
+			# get next Task
+			tsk = self.get_next()
+			if tsk is None: break
+
+			if Logs.verbose: debug('runner: retrieving %r' % tsk)
+
+			st = tsk.runnable_status()
+			if st == ASK_LATER:
+				debug('runner: postponing %r' % tsk)
+				self.postpone(tsk)
+				continue
+
+			#continue
+			if st == SKIP_ME:
+				tsk.hasrun = SKIPPED
+				self.manager.add_finished(tsk)
+				continue
+
+			tsk.position = (self.processed, self.total)
+
+			# display the command that we are about to run
+			tsk.generator.bld.printout(tsk.display())
+
+			# run the command
+			if tsk.__class__.stat: ret = tsk.__class__.stat(tsk)
+			else: ret = tsk.run()
+			self.manager.add_finished(tsk)
+
+			# non-zero means something went wrong
+			if ret:
+				self.error = 1
+				tsk.hasrun = CRASHED
+				tsk.err_code = ret
+				if Options.options.keep: continue
+				else: return -1
+
+			try:
+				tsk.post_run()
+			except OSError:
+				self.error = 1
+				tsk.hasrun = MISSING
+				if Options.options.keep: continue
+				else: return -1
+			else:
+				tsk.hasrun = SUCCESS
+
+		if self.error:
+			return -1
+
+import subprocess
+p = subprocess.Popen(['dpkg', '--print-architecture'], stdout=subprocess.PIPE)
+arch = p.stdout.read().strip()
+p.wait()
+if arch == 'hppa':
+	Parallel = Serial