build/xilinx/platform: fix merge

diff --git a/litex/build/xilinx/platform.py b/litex/build/xilinx/platform.py
index e17ad4f9e7659ccb8843bb6fe2e1a1e9344a2e0d..2143df58bd96e96ccec6175394394535df000ec1 100644 (file)
--- a/litex/build/xilinx/platform.py
+++ b/litex/build/xilinx/platform.py
@@ -1,3 +1,5 @@
+import os
+
 from litex.build.generic_platform import GenericPlatform
 from litex.build.xilinx import common, vivado, ise