From 4dc82da0e9be7daaaaae34bb3ba9f25a3355cf6c Mon Sep 17 00:00:00 2001
From: Tim 'mithro' Ansell <me@mith.ro>
Date: Sun, 5 Jan 2020 09:10:14 -0800
Subject: [PATCH] Make lxbuildenv.py return 0 on success.

`sys.exit` raises a `SystemExit` exception which causes a bare except to
always trigger. IE the below always prints hello.

```python
import sys
try:
	sys.exit(0)
except:
	print("Hello")
```

However, SystemExit doesn't inherit from Exception, so the following
works as expected.

```python
import sys
try:
	sys.exit(0)
except Exception:
	print("Hello")
```
---
 litex/lxbuildenv.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/litex/lxbuildenv.py b/litex/lxbuildenv.py
index dd155b8..bfcb2e6 100644
--- a/litex/lxbuildenv.py
+++ b/litex/lxbuildenv.py
@@ -592,7 +592,8 @@ elif "LXBUILDENV_REEXEC" not in os.environ:
     try:
         sys.exit(subprocess.Popen(
             [sys.executable] + [sys.argv[0]] + rest).wait())
-    except:
+    except Exception as e:
+        print(e)
         sys.exit(1)
 else:
     # Overwrite the deps directory.