#!/usr/bin/env python
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"


"""
Verify that a that a tool module in site_tools overrides base tool.

Use 'm4' as test tool since it's likely to be found,
and not commonly overridden by platform-specific stuff the way cc is.
"""

import TestSCons

test = TestSCons.TestSCons()

test.subdir('site_scons', ['site_scons', 'site_tools'])

test.write(['site_scons', 'site_tools', 'm4.py'], """
import SCons.Tool
def generate(env):
    env['M4']='my_m4'
    env['M4_MINE']=1
def exists(env):
    return 1
""")

test.write('SConstruct', """
e=Environment()
print e.subst('M4 is $M4, M4_MINE is $M4_MINE')
""")
test.run(arguments = '-Q .',
         stdout = """M4 is my_m4, M4_MINE is 1
scons: `.' is up to date.\n""")



test.pass_test()

# end of file

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