Description: Avoid tripping over the multiprocessing import in compileall
 Minimal includes compileall but not multiprocessing.
Forwarded: not-needed
--- a/Lib/compileall.py
+++ b/Lib/compileall.py
@@ -97,10 +97,13 @@
     files = _walk_dir(dir, quiet=quiet, maxlevels=maxlevels)
     success = True
     if workers != 1 and ProcessPoolExecutor is not None:
-        import multiprocessing
-        if multiprocessing.get_start_method() == 'fork':
-            mp_context = multiprocessing.get_context('forkserver')
-        else:
+        try:
+            import multiprocessing
+            if multiprocessing.get_start_method() == 'fork':
+                mp_context = multiprocessing.get_context('forkserver')
+            else:
+                mp_context = None
+        except ImportError:
             mp_context = None
         # If workers == 0, let ProcessPoolExecutor choose
         workers = workers or None