From 5796f30b1802859ca24607725732e67256334a0c Mon Sep 17 00:00:00 2001
From: Christian Klarhorst <cklarhor@techfak.uni-bielefeld.de>
Date: Tue, 5 Jul 2022 14:14:02 +0200
Subject: [PATCH] build/xilinx/ise: Fix XST flow

---
 litex/build/xilinx/ise.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/litex/build/xilinx/ise.py b/litex/build/xilinx/ise.py
index 3d9b82c94..101d355db 100755
--- a/litex/build/xilinx/ise.py
+++ b/litex/build/xilinx/ise.py
@@ -215,8 +215,11 @@ bitgen {bitgen_opt} {build_name}.ncd {build_name}.bit{fail_stmt}
            e_output.write(e_file)
            self.build_io_constraints()
 
-
-        command = shell + [build_script_file]
+        if sys.platform == "win32" or sys.platform == "cygwin":
+            shell = ["cmd", "/c"]
+        else:
+            shell = ["bash"]
+        command = shell + [script]
 
         if which("ise") is None and os.getenv("LITEX_ENV_ISE", False) == False:
             msg = "Unable to find or source ISE toolchain, please either:\n"