--- a/src/bridge/bridge_constructor/bridge_contructor.py	Mon Jun 06 18:34:40 2011 +0200
+++ b/src/bridge/bridge_constructor/bridge_contructor.py	Mon Jun 06 18:35:30 2011 +0200
@@ -39,6 +39,8 @@
 DEFAULT_PROTOCOLE='dbus'
 FLAGS=['deprecated', 'async']
 
+ENV_OVERRIDE = "SAT_BRIDGE_CONST_" #Prefix used to override a constant
+
 import sys
 import os
 from os import path
@@ -378,6 +380,8 @@
         #at this point, signals_part, methods_part and direct_calls should be filled,
         #we just have to place them in the right part of the template
         core_bridge = []
+        const_override_pref = filter(lambda env: env.startswith(ENV_OVERRIDE), os.environ)
+        const_override = [env[len(ENV_OVERRIDE):] for env in const_override_pref]
         try:
             with open(self.core_template) as core_template:
                 for line in core_template:
@@ -388,6 +392,12 @@
                     elif line.startswith('##DIRECT_CALLS##'):
                         core_bridge.extend(direct_calls)
                     else:
+                        if line.startswith('const_'):
+                            const_name = line[len('const_'):line.find(' = ')]
+                            if const_name in const_override:
+                                print ("const %s overriden" % const_name)
+                                core_bridge.append('const_%s = %s' % (const_name, os.environ[ENV_OVERRIDE+const_name]))
+                                continue
                         core_bridge.append(line.replace('\n',''))
         except IOError:
             print ("Can't open template file [%s]" % self.core_template)
@@ -430,12 +440,20 @@
         #at this point, methods_part should be filled,
         #we just have to place it in the right part of the template
         frontend_bridge = []
+        const_override_pref = filter(lambda env: env.startswith(ENV_OVERRIDE), os.environ)
+        const_override = [env[len(ENV_OVERRIDE):] for env in const_override_pref]
         try:
             with open(self.frontend_template) as frontend_template:
                 for line in frontend_template:
                     if line.startswith('##METHODS_PART##'):
                         frontend_bridge.extend(methods_part)
                     else:
+                        if line.startswith('const_'):
+                            const_name = line[len('const_'):line.find(' = ')]
+                            if const_name in const_override:
+                                print ("const %s overriden" % const_name)
+                                frontend_bridge.append('const_%s = %s' % (const_name, os.environ[ENV_OVERRIDE+const_name]))
+                                continue
                         frontend_bridge.append(line.replace('\n',''))
         except IOError:
             print ("Can't open template file [%s]" % self.frontend_template)