Multi-level build dir with Object() and duplicate=0.

2 files changed, 16 insertions, 0 deletions

diff --git a/src/engine/SCons/Node/FS.py b/src/engine/SCons/Node/FS.py
index d12a504..249c8c6 100644
--- a/src/engine/SCons/Node/FS.py
+++ b/src/engine/SCons/Node/FS.py
@@ -1455,6 +1455,10 @@ class File(Base):
             return dir, os.path.join(dir, bsig)
         return None, None
 
+    def target_from_source(self, prefix, suffix, splitext=SCons.Util.splitext):
+        return self.dir.File(prefix + splitext(self.name)[0] + suffix)
+
+
 default_fs = FS()
 
 
diff --git a/src/engine/SCons/Node/FSTests.py b/src/engine/SCons/Node/FSTests.py
index d651e1c..17d037d 100644
--- a/src/engine/SCons/Node/FSTests.py
+++ b/src/engine/SCons/Node/FSTests.py
@@ -1074,6 +1074,18 @@ class FSTestCase(unittest.TestCase):
                f.get_string(0)
         assert f.get_string(1) == 'baz', f.get_string(1)
 
+        x = fs.File('x.c')
+        t = x.target_from_source('pre-', '-suf')
+        assert str(t) == 'pre-x-suf', str(t)
+
+        y = fs.File('dir/y')
+        t = y.target_from_source('pre-', '-suf')
+        assert str(t) == 'dir/pre-y-suf', str(t)
+
+        z = fs.File('zz')
+        t = z.target_from_source('pre-', '-suf', lambda x: x[:-1])
+        assert str(t) == 'pre-z-suf', str(t)
+
 class EntryTestCase(unittest.TestCase):
     def runTest(self):
         """Test methods specific to the Entry sub-class.