Index: Lib/distutils/spawn.py
===================================================================
--- Lib/distutils/spawn.py	(révision 81169)
+++ Lib/distutils/spawn.py	(copie de travail)
@@ -97,7 +97,11 @@
                   "command '%s' failed with exit status %d" % (cmd[0], rc))
 
 def _spawn_posix(cmd, search_path=1, verbose=0, dry_run=0):
-    log.info(' '.join(cmd))
+    # escape non encodable characters using backslashreplace error handler
+    encoding = sys.stdout.encoding
+    cmd_str = ' '.join(cmd)
+    cmd_str = cmd_str.encode(encoding, "backslashreplace").decode(encoding)
+    log.info(cmd_str)
     if dry_run:
         return
     exec_fn = search_path and os.execvp or os.execv