# Propogate 'HOME' through the environment.
config.environment['HOME'] = os.environ['HOME']
+# Propogate LLVM_SRC_ROOT into the environment.
+config.environment['LLVM_SRC_ROOT'] = getattr(config, 'llvm_src_root', '')
+
+# Propogate PYTHON_EXEUTABLE into the environment
+config.environment['PYTHON_EXECUTABLE'] = getattr(config, 'python_executable',
+ '')
+
###
import os