third_party: Update waf to version 2.0.17

[bbaumbach/samba-autobuild/.git] / third_party / waf / waflib / extras / buildcopy.py

diff --git a/third_party/waf/waflib/extras/buildcopy.py b/third_party/waf/waflib/extras/buildcopy.py
index a6d9ac83114dfdd9f0409f13daffd53ae287fd26..eaff7e605a640637e46c8fbfb6ba329214898177 100644 (file)
--- a/third_party/waf/waflib/extras/buildcopy.py
+++ b/third_party/waf/waflib/extras/buildcopy.py
@@ -22,7 +22,7 @@ Examples::
 
 """
 import os, shutil
-from waflib import Errors, Task, TaskGen, Utils, Node
+from waflib import Errors, Task, TaskGen, Utils, Node, Logs
 
 @TaskGen.before_method('process_source')
 @TaskGen.feature('buildcopy')
@@ -58,10 +58,13 @@ def make_buildcopy(self):
                raise Errors.WafError('buildcopy: File not found in src: %s'%os.path.join(*lst))
 
        nodes = [ to_src_nodes(n) for n in getattr(self, 'buildcopy_source', getattr(self, 'source', [])) ]
+       if not nodes:
+               Logs.warn('buildcopy: No source files provided to buildcopy in %s (set `buildcopy_source` or `source`)',
+                       self)
+               return
        node_pairs = [(n, n.get_bld()) for n in nodes]
        self.create_task('buildcopy', [n[0] for n in node_pairs], [n[1] for n in node_pairs], node_pairs=node_pairs)
 
-
 class buildcopy(Task.Task):
        """
        Copy for each pair `n` in `node_pairs`: n[0] -> n[1].