1 files changed, 20 insertions, 0 deletions
diff --git a/build/buildconfig.py b/build/buildconfig.py
new file mode 100644
index 0000000000..e73903a1a9
--- /dev/null
+++ b/build/buildconfig.py
@@ -0,0 +1,20 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import os
+import sys
+from mozbuild.base import MozbuildObject
+
+config = MozbuildObject.from_environment()
+
+for var in ('topsrcdir', 'topobjdir', 'defines', 'non_global_defines',
+            'substs'):
+    value = getattr(config, var)
+    setattr(sys.modules[__name__], var, value)
+
+substs = dict(substs)
+
+for var in os.environ:
+    if var not in ('CPP', 'CXXCPP', 'SHELL') and var in substs:
+        substs[var] = os.environ[var]