From 7874f8569f26cdbe8e975a09f877d3b91ba59c99 Mon Sep 17 00:00:00 2001
From: Thomas Nagy <tnagy@waf.io>
Date: Sun, 13 Aug 2017 22:37:31 +0200
Subject: [PATCH] Cache taskg_gen.idx by absolute path

---
 waflib/TaskGen.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/waflib/TaskGen.py b/waflib/TaskGen.py
index ca098ce2..ac2ed85f 100644
--- a/waflib/TaskGen.py
+++ b/waflib/TaskGen.py
@@ -78,11 +78,12 @@ class task_gen(object):
 
 			# Provide a unique index per folder
 			# This is part of a measure to prevent output file name collisions
+			path = self.path.abspath()
 			try:
-				self.idx = self.bld.idx[self.path] = self.bld.idx.get(self.path, 0) + 1
+				self.idx = self.bld.idx[path] = self.bld.idx.get(path, 0) + 1
 			except AttributeError:
 				self.bld.idx = {}
-				self.idx = self.bld.idx[self.path] = 1
+				self.idx = self.bld.idx[path] = 1
 
 			# Record the global task generator count
 			try: