3 # SCons is at #/scons/scons-<v>/engine/SCons/__init__.py
4 # site_init is at #/site_scons/site_init.py
6 sconsbase = os.path.join(os.path.dirname(os.path.dirname(__file__)),"scons")
7 sconsbase = os.path.abspath(os.path.join(sconsbase, sorted(os.listdir(sconsbase))[-1]))
8 sconsengine = os.path.join(sconsbase, 'engine')
9 sconsscript = os.path.join(os.path.join(sconsbase, 'script'),'scons')
11 if os.path.abspath(os.path.dirname(os.path.dirname(os.path.dirname(SCons.__file__)))) != sconsbase:
12 import os, sys, SCons.Util
13 SCons.Util.display("scons: Switching version")
14 frame = sys._getframe()
17 while frame and target_top is marker:
18 target_top = frame.f_locals.get('target_top',marker)
20 if target_top is marker:
21 SCons.Util.display("scons: WARNING: scons -u will fail")
22 elif target_top is not None:
24 os.environ['SCONS_LIB_DIR'] = sconsengine
25 os.execv(sconsscript, sys.argv)