make/_misoc_import: force external path search

diff --git a/make.py b/make.py
index 629c945a1c55589d255a686ea06daf2543dc09fb..ff987b9202995d6e1cf9aa4e1a7bb21380e43970 100755 (executable)
--- a/make.py
+++ b/make.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-import argparse, importlib, subprocess, struct
+import sys, argparse, importlib, subprocess, struct
 
 from mibuild.tools import write_to_file
 from migen.util.misc import autotype
@@ -31,6 +31,10 @@ def _get_args():
 
 def _misoc_import(default, external, name):
        if external:
+               try:
+                       del sys.modules[name] # force external path search
+               except KeyError:
+                       pass
                loader = importlib.find_loader(name, [external])
                if loader is None:
                        raise ImportError("Module not found: "+name)