Index: Misc/NEWS
===================================================================
--- Misc/NEWS	(révision 81175)
+++ Misc/NEWS	(copie de travail)
@@ -351,6 +351,10 @@
 Library
 -------
 
+- Issue #8663: distutils.log emulates backslashreplace error handler. Fix
+  compilation in a non-ASCII directory if stdout encoding is ASCII (eg. if
+  stdout is not a TTY).
+
 - Issue #8681: Make the zlib module's error messages more informative when
   the zlib itself doesn't give any detailed explanation.
 
Index: Lib/distutils/log.py
===================================================================
--- Lib/distutils/log.py	(révision 81175)
+++ Lib/distutils/log.py	(copie de travail)
@@ -27,6 +27,10 @@
                 stream = sys.stderr
             else:
                 stream = sys.stdout
+            if stream.errors == 'strict':
+                # emulate backslashreplace error handler
+                encoding = stream.encoding
+                msg = msg.encode(encoding, "backslashreplace").decode(encoding)
             stream.write('%s\n' % msg)
             stream.flush()