From 8265e95b152bec14ac4e8bae48f473326a41e38e Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 12 Nov 2013 16:20:50 +0530
Subject: [PATCH] Linux binary build: Return proper exit codes when raising
 SystemExit

---
 setup/installer/linux/freeze2.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/setup/installer/linux/freeze2.py b/setup/installer/linux/freeze2.py
index 6b9c101b7e..8b17c29a9e 100644
--- a/setup/installer/linux/freeze2.py
+++ b/setup/installer/linux/freeze2.py
@@ -386,8 +386,13 @@ class LinuxFreeze(Command):
                     mod = __import__(sys.calibre_module, fromlist=[1])
                     func = getattr(mod, sys.calibre_function)
                     return func()
-                except SystemExit:
-                    raise
+                except SystemExit as err:
+                    if err.code is None:
+                        return 0
+                    if isinstance(err.code, int):
+                        return err.code
+                    print (err.code)
+                    return 1
                 except:
                     import traceback
                     traceback.print_exc()